need help with this question about amplitude

Need Help With This Question About Amplitude

Answers

Answer 1

Step-by-step explanation:

the amplitude is the height of the wave.

like with sound - the further away you are, the lower the volume of the sound (as the sound volume is the indicator of the amplitude of a sound wave, or the brightness of a light is the indicator of the amplitude of a light wave).

the same for any other type of wave (like the seismic wave of an earthquake).

so, the larger the distance, normally the smaller the amplitude.


Related Questions

Part A: Describe two types of transformations that can be used to transform f(x) to g(x). (2 points)

Part B: Solve for k in each type of transformation. (4 points)

Part C: Write an equation for each type of transformation that can be used to transform f(x) to g(x). (4 points)

Part A: Describe two types of transformations that can be used to transform f(x) to g(x). (2 points)Part

Answers

A) The transformations can be a vertical translation and an horizontal translation.

B) K = 8 and K' = 16

C) g(x) = f(x + 8)

    g(x) = f(x) + 16.

Which type of transformation could be used?

A ) By looking at the graph, we see that g(x) can be a translation to the left by K units or up by K' units.

B) In the case the translation is to the left, we can see that it the graph is moved 8 units, so K = 8.

In the case that the translation is up, we can see that it is for 16 units, so we have k' = 16.

C) How to write the equations?

An horizontal translation is written as:

g(x) = f(x + K).

Because the translation is to the left, we have that K is positive, then in our case we have:

g(x) = f(x + 8).

For the vertical translation the formula is:

g(x) = f(x) + K'

In our case, we have:

g(x) = f(x) + 16

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Answer:The transformations can be a vertical translation and an horizontal translation.B) K = 8 and K' = 16C) g(x) = f(x + 8)    g(x) = f(x) + 16.Which type of transformation could be used?A ) By looking at the graph, we see that g(x) can be a translation to the left by K units or up by K' units.B) In the case the translation is to the left, we can see that it the graph is moved 8 units, so K = 8.In the case that the translation is up, we can see that it is for 16 units, so we have k' = 16.C) How to write the equations?An horizontal translation is written as:g(x) = f(x + K).Because the translation is to the left, we have that K is positive, then in our case we have:g(x) = f(x + 8).For the vertical translation the formula is:g(x) = f(x) + K'In our case, we have:g(x) = f(x) + 16

Step-by-step explanation:

4. There are 8 horses in race, how many
ways can they finish first, second and
third?

Answers

Answer:

we would take 8 horses and place 3, like this. There are 336 ways to have 8 horses place for 1st, 2nd, and 3rd place.

Step-by-step explanation:

Need help with this question all parts (Use the image on cypto to help solve the question)

Need help with this question all parts (Use the image on cypto to help solve the question)
Need help with this question all parts (Use the image on cypto to help solve the question)

Answers

ExplanationPart a

We first need to find the encoding and decoding functions used by Boris and Natasha. We know that these two must be linear functions with 1 as the coefficient of x. Then the encoding function must have the form:

\(f(x)=x+b\)

Where x is the number associated with the letter and b is a constant that we don't know. The decoding function is its inverse:

\(f^{-1}(x)=x-b\)

Now let's take a look at the table that associates the letters with numbers. The minimum number is 1 associated with A and the maximum is 27 associated with Blank. Now let's write the encoded version of these two:

\(\begin{gathered} f(1)=1+b \\ f(27)=27+b \end{gathered}\)

And let's find the difference between their encoded values:

\(f(27)-f(1)=(27+b)-(1+b)=27-1+b-b=27-1=26\)

So the difference between their encoded values is the same as the difference between their decoded values. Since 1 and 27 are the minimum and maximum decoded values their difference is the greatest of all the difference between two decoded values. Then there's no other pair of decoded values with a difference equal to 26 and since the difference between two encoded values is the same as the difference between two decoded values we can assure that 26 is the maximum difference between two encoded values and it corresponds to the pair A - Blank.

This implies that if the difference between the minimum and maximum value in the message sent by Boris and Natasha is 26 we can assure that this pair of values is the one corresponding to A and Blank.

Part b

The minimum and maximum values in the message are 15 and 41 and their difference is 41 - 15 = 26. This means that 15 is the encoded value of A and 41 is that of Blank. Then we can construct two equations using the encoding function:

\(\begin{gathered} f(1)=1+b=15 \\ f(27)=27+b=41 \end{gathered}\)

By substracting 1 from both sides of the first equation and 27 from both sides of the second equation we obtain b:

\(\begin{gathered} 1+b-1=15-1\Rightarrow b=14 \\ 27+b-27=41-27\Rightarrow b=14 \end{gathered}\)

So b=14 and the encoding function is f(x)=x+14.

Then the decoding function is f⁻¹(x) = x - 14.

Part c

Now we need to decode the message. We simply need to evaluate the decoding function at all the numbers in the encoded message:

\(\begin{gathered} f^{-1}(25)=25-14=11 \\ f^{-1}\left(19\right)=19-14=5 \\ f^{-1}(30)=30-14=16 \\ f^{-1}(41)=41-14=27 \\ f^{-1}(17)=17-14=3 \\ f^{-1}(15)=15-14=1 \\ f^{-1}(26)=26-14=12 \\ f^{-1}(27)=27-14=13 \\ f^{-1}(28)=28-14=14 \\ f^{-1}(18)=18-14=4 \\ f^{-1}(29)=29-14=15 \\ f^{-1}(34)=34-14=20 \\ f^{-1}(22)=22-14=8 \end{gathered}\)

Then we replace each encoded value by its respective decoded value so the message in numbers is:

11 5 5 16 27 3 1 12 13 27 1 14 4 27 4 15 27 20 8 5 27 13 1 20 8

Using the table associating numbers and letters we obtain the final message:

KEEP CALM AND DO THE MATH

Find the equation of the line that contains the given point and is perpendicular to the given line. Write the equation in​ slope-intercept form, if possible. (6,2)​; 3x−2y=7 please help me with this, it’s due tomorrow!!?

Answers

The equation of the line is passing through a point (6, 2) and is perpendicular to the line 3x-2y = 7 is y = -2x/3 + 8

What is slope-intercept form?

The slope intercept formula y = mx + b is used when you know the slope of the line to be examined and the point given is also the y intercept (0, b). In the formula, b represents the y value of the y intercept point

Given that, a line is passing through a point (6, 2) and is perpendicular to the line 3x-2y = 7, we need to find the equation of the line,

The line is

3x-2y = 7

Converting into slope-intercept form,

3x-2y = 7

2y = 3x - 7

y = 3x/2 - 7/2

We know that, the slopes of two perpendicular lines are negative reciprocal of each other,

Therefore, the slope of the asked line = -2/3

Therefore, the equation of the asked line is, y = -2x/3 + c....(I)

Put x = 6 and y = 2 in equation to find c,

2 = -4 + c

c = 8

Therefore, put c = 8 in equation (i)

y = -2x/3 + 8

Hence, the equation of the line is passing through a point (6, 2) and is perpendicular to the line 3x-2y = 7 is y = -2x/3 + 8

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PLEASE HELP FAST ILL GIVE YOU AS MUCH POINTS AS POSSIBLE! MAKE SURE YOU ANDWER ONLY IF YOU KNOW!

PLEASE HELP FAST ILL GIVE YOU AS MUCH POINTS AS POSSIBLE! MAKE SURE YOU ANDWER ONLY IF YOU KNOW!

Answers

Answer:

(1,4)

Step-by-step explanation:

can someone help me please

can someone help me please

Answers

Answer:

i think its b

Step-by-step explanation:

help me solve this queston

help me solve this queston

Answers

TJohn's age is approximately 23.33 years, and Sharon's age is approximately 93.33 years.

And the correct graph is D.

To represent the given problem as a system of equations, we can use the following information:

John is 70 years younger than Sharon: j = s - 70

Sharon is 4 times as old as John: s = 4j

Let's plot the graph for this system of equations:

First, let's solve equation (2) for s:

s = 4j

Now substitute this value of s in equation (1):

j = s - 70

j = 4j - 70

3j = 70

j = 70/3

Substitute the value of j back into equation (2) to find s:

s = 4j

s = 4(70/3)

s = 280/3

The solution to the system of equations is j = 70/3 and s = 280/3

In the graph d, the solution to the system of equations is represented by the point (70/3, 280/3), which is approximately (23.33, 93.33) on the graph.

Therefore, John's age is approximately 23.33 years, and Sharon's age is approximately 93.33 years.

And the correct graph is D.

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help me solve this queston

fill in the blank. the mathematical formula for calculating the___percent is the number of times an association did occur divided by the number of times it could have occurred in the data set. support confidence laplace gain

Answers

The mathematical formula for calculating the support percent is the number of times an association did occur divided by the number of times it could have occurred in the data set.

Support is a measure of the frequency or popularity of an itemset, i.e., the number of transactions in which an item or a set of items appears in a transaction database.

In data mining and association rule learning, support is a key measure for identifying interesting patterns or associations in the data. A high support value indicates that the itemset is frequently occurring in the data, and is therefore considered as having a high degree of importance or interest.

In general, a support threshold is used to prune the search space and focus on only those patterns that meet a minimum support criterion.

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Your question seems incomplete, but I suppose the full question was:

"The mathematical formula for calculating the ________ percent is the number of times an association did occur divided by the number of times it could have occurred in the data set.

support

confidence

Laplace

gain."

Fourth-grade classrooms in several elementary schools are randomly assigned to different antibullying training programs at the beginning of the school year. The school district keeps track of the number of incidents of bullying in each classroom.

This study is an example of __________ study.

Answers

Answer:

experimental study.

Step-by-step explanation:

This study is an example of an experimental study.

The type of training program is the independent variable. The number of incidents of bullying is the dependent variable.

Since the participants of our study are affected directly in the research (the fourth-grade children) by not training against anti-bullying, the study is experimental research.

An independent variable is one that is somehow controlled or adjusted to evaluate the effects of a different variable, the dependent. Since we control whether we do bullying training here or not, our kind of training program is our independent variable, which is our dependent variable since we measure its impact on instances of bullying no.

HELP ME PLS




Kevin needs to read 3 novels each month.

Let N be the number of novels Kevin needs to read in M months.


Write an equation relating N to M . Then use this equation to find the number of novels Kevin needs to read in 19 months.

Answers

Kevin needs to read 57 novels in 19 months.

Given,

The number of novels Kevin needs to read in a month = 3

N = Number of novels Kevin needs to read in M months.

Write an equation with M and N.

That is,

Kevin needs to read 3 novels in one month.

So, number of novels, N Kevin reads in M months,  3M = N

The equation is;

3M = N

Now,

The number of months Kevin needs to read the novels = 19

Then,

The number of novels Kevin reads in 19 months;

3M = N

3 × 19 = 57

That is,

Kevin needs to read 57 novels in 19 months.

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this distance between two floors is 9'0 1/2". if 14 raisers are to be used in a set of stairs, what is the height of each raiser?

Answers

If the total height between two floors is 9'0 1/2" and 14 risers are to be used in a set of stairs, the height of each riser would be approximately 7.75 inches.

To find the height of each riser in a set of stairs given the total height between two floors, we need to divide the total height by the number of risers.

First, let's convert the total height to a consistent unit. The distance between two floors is given as 9'0 1/2". We can convert this to inches by multiplying the feet by 12 and adding the remaining inches:

9 feet = 9 * 12 = 108 inches

0 1/2 inch = 0.5 inch

Total height = 108 + 0.5 = 108.5 inches

Next, we divide the total height by the number of risers (14) to find the height of each riser:

Height of each riser = Total height / Number of risers

Height of each riser = 108.5 inches / 14

Using a calculator, we can compute:

Height of each riser ≈ 7.75 inches

Therefore, the height of each riser in the set of stairs would be approximately 7.75 inches.

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Each state imposes its own excise tax on gasoline. Suppose, for example, that the state of Massachusetts imposes a state gasoline tax of $0.26 per gallon. Suppose further that an average of 1,022,000 gallons of gasoline per day were sold in Massachusetts in 2010.

Answers

Complete question :

Each state imposes its own excise tax on gasoline. Suppose, for example, that the state of Massachusetts imposes a state gasoline tax of $0.26 per gallon. Suppose further that an average of 1,022,000 gallons of gasoline per day were sold in Massachusetts in 2010. The average revenue from gasoline tax in 2010 is approximately?

Answer:

$265,720

Step-by-step explanation:

Given that:

State gasoline tax = $0.26 per gallon

Average number of gasoline sold per day = 1,022,000 gallons

. From the availabke information given :

Revenue generated = gasoline tax per gallon multiplied by the average number of gallons sold

= $0.26 * 1,022,000

= $265,720

The average revenue from gasoline tax in 2010 is $265,720.

Calculation of the average revenue:

Since the state of Massachusetts imposes a state gasoline tax of $0.26 per gallon. Suppose further that an average of 1,022,000 gallons of gasoline per day

So, here the average revenue should be

= 0.26 of 1,022,000

= $265,720

hence, The average revenue from gasoline tax in 2010 is $265,720.

This is an incomplete question. Please find the complete details below.

Each state imposes its own excise tax on gasoline. Suppose, for example, that the state of Massachusetts imposes a state gasoline tax of $0.26 per gallon. Suppose further that an average of 1,022,000 gallons of gasoline per day were sold in Massachusetts in 2010. The average revenue from gasoline tax in 2010 is approximately?

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find length. lesson ​

find length. lesson

Answers

b = a·sin(B)/sin(A) = 12.42516 is the length of x in the given diagram.

In light of the question -In geometry, a triangle is a closed two-dimensional figure with three sides, three corners, and three vertices. Triangles are considered polygons with the fewest sides. In this article, we will discuss in detail what a triangle is, its types, properties and formulas. Learn more about triangles  here. In geometry, a triangle is a type of polygon with three sides and three vertices.  A triangle is considered a three-sided polygon. The sum of  the three angles of a triangle is  180°. A triangle is contained in a single plane. There are six types of triangles based on their side and angle measurements. A triangle has only three sides joined by corners. Therefore, no matter what kind of triangle it is, it  always has three sides.Calculation

The following is one way to perform the calculation. It may not be the best way.

Calculated based on 2 given angles and 1 given side.

∠B = 180° - A - C = 0.57596 rad = 33°

b = a·sin(B)/sin(A) = 12.42516

c = a·sin(C)/sin(A) = 12.75719

Area =  

ab·sin(C)

2

= 72.95464

Perimeter p = a + b + c = 46.18234

Semiperimeter s = a + b +c/2

= 23.09117

Height ha = 2×Area

a

= 6.94806

Height hb =  

2×Area

b

= 11.74305

Height hc =  

2×Area

c

= 11.43742

Median ma = √(a/2)2 + c2 - ac·cos(B) = 6.95091

Median mb = √(b/2)2 + a2 - ab·cos(C) = 16.2258

Median mc = √(c/2)2 + b2 - bc·cos(A) = 16.0314

Inradius r =  

Area

s

= 3.15942

Circumradius R =  

a

2sin(A)

= 11.40678

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The spinner shown is spun twice. Express your answer
as a simplified fraction.
7. Find P(the two numbers have an even sum).
8. Find P(two even numbers).

The spinner shown is spun twice. Express your answeras a simplified fraction.7. Find P(the two numbers

Answers

7) The  probability that the two numbers have an even sum is: 0.5

8) The probability that the two are even is: 0.25

How to find the probability in a spinner?

7) We want to find the probability that the two numbers have an even sum.

The only combinations that produces an even sum are:

(1, 3), (3, 1), (1, 1), (2, 2), (2, 4), (4, 2), (4, 4), (3, 3)

The other combinations of numbers are:

(1, 2), (1, 4), (2, 1), (4, 1), (2, 3), (3, 2), (3, 4), (4, 3)

Thus, we have a total of 16 combinations and the  probability that the two numbers have an even sum is:

P(two numbers with even sum) = 8/16 = 0.5

8) The probability that the two are even is:

4/16 = 1/4

= 0.25

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The amount of money, in dollars, Sarah has in her savings account is modeled as a function of time in months. This function is represented by the graph below. What is the average rate of change for the amount of money, in dollars per month, from month 0 to month 12?

The amount of money, in dollars, Sarah has in her savings account is modeled as a function of time in

Answers

The average rate of change is given by the change in the amount of money between 0 and 12 months, divided by the change in the months.

Notice that in month 12, she had $500. And in month 0, she had 200.

Thus, in dollars per month, this average rate of change is:

\(\frac{500-200}{12-0}=\frac{300}{12}=25\)

Therefore, the answer is:

$25 per month

HELP PLS!

Delta math

HELP PLS!Delta math

Answers

Angle B=56

180-118=62
62=angle C
If angles C and A equal the same thing then you know what angle A is.
So, 62*2=124
Now do 180-124=56

Find the nth term: 9,20,31,42

Answers

Answer:

the answer is 99 because the difference between the numbers is 11 and if you do 9 ×11 you get 99

Answer: The nth term of this sequence is a n= 11n-2

Step-by-step explanation:

Sequence : 9, 20, 31, 42

Difference : +11, +11, +11

The formula for nth term of an arithmetic progression is a n= d.n+a1-d

The formula for nth term of an arithmetic progression is d= 11 and a1=9

so.

a n=d.n+a 1-d

a n=11.n+9-11

a n=11n-2

Hope it helps :)

Work out 45 % of £ 426.07 Give your answer rounded to 2 DP.

Answers

Answer : 191.73

Reason:
426.07 x .45 = Answer

You get .45 from making 45% into a decimal

The value of (2x² + 4) ÷ 2


Step by step explanation needed


No Spam ​

Answers

Answer:

x^2 + 2

Step-by-step explanation:

The value of (2x2 + 4) ÷ 2 =

(2x2 + 4)/2 =

(2(x2 + 2))/2 =

x^2 + 2

solve for x, using the secant lines. 53° 189°

Answers

The measure of the arc opposite to 189° is 136°.

What are secant lines?

Secant lines are lines that intersect a curve at two distinct points. They are used to approximate the slope of the curve by measuring the change in the y-coordinate of the two points divided by the change in the x-coordinate of the two points.

The measure of the angle opposite to 189° is x.

To solve for x, we can use the property of alternate interior angles.

The sides of the two secant lines that intersect outside the circle form alternate interior angles whose measures are equal.

Therefore, the two angles formed by the secant lines inside the circle must have the same measure.

Therefore, 53° + x° = 189°.

Subtracting 53° from both sides, we get x° = 136°.

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solve for x, using the secant lines. 53 189

Find the area and perimeter. The figure shows a triangle. One side is given by x minus 7 units. The second side is given by 2 x plus 5 units. The third side is equal to 12 units. The height from the third side is given by x plus 6 units. Hint: The height of a non-right triangle is the length of the segment of a line that is perpendicular to the base and that contains the opposite vertex. 12x + 72; 3x + 10 6x + 36; 3x + 10 6x + 36; 10x + 3 12x + 72; 10x + 3

Answers

Area of the triangle = 6x + 36

Perimeter of the rectangle = 3x + 10

How to Find the Area and Perimeter of a Triangle?

Given the following parameters of a triangle as shown in the image attached below, its area and perimeter is calculated as shown below?

Area of the triangle = 1/2(base)(height) = 1/2(12)(x + 6)

Area of the triangle = 6(x + 6)

Area of the triangle = 6x + 36

The perimeter of the triangle = sum of all the three sides of the given triangle = (x - 7) + (2x + 5) + (12)

Perimeter= x - 7 + 2x + 5 + 12

Add like terms

Perimeter= x + 2x  - 7 + 5 + 12

Perimeter= 3x + 10

Therefore, we have:

Area of the triangle = 6x + 36

Perimeter of the rectangle = 3x + 10

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Find the area and perimeter. The figure shows a triangle. One side is given by x minus 7 units. The second

17 The table below shows the distance a car has traveled.
50
20
f
40
Minutes
Distance
Traveled
(in miles)
What is the meaning of the slope of the linear model for the data?
60
100
a) The car travels 5 miles every minute.
b) The car travels 4 miles every minute.
c) The car travels 4 miles every 5 minutes.
d) The car travels 5 miles every 4 minutes.
125
80
100

Answers

Given statement solution is :- None of the given options (a, b, c, or d) match the meaning of the slope. The correct interpretation is that the car travels approximately 0.8 miles every minute.

To determine the meaning of the slope of the linear model for the given data, let's analyze the information provided. The table represents the distance traveled by a car at different time intervals.

Minutes | Distance Traveled (in miles)

50 | 20

20 | f

40 | 60

100 | a

125 | 80

100 | 100

To find the slope of the linear model, we need to calculate the change in distance divided by the change in time. Let's consider the intervals where the time changes by a fixed amount:

Between 50 minutes and 20 minutes: The distance changes from 20 miles to 'f' miles. We don't have the exact value of 'f', so we can't calculate the slope for this interval.

Between 20 minutes and 40 minutes: The distance changes from 'f' miles to 60 miles. Again, without knowing the value of 'f', we can't calculate the slope for this interval.

Between 40 minutes and 100 minutes: The distance changes from 60 miles to 'a' miles. We don't have the exact value of 'a', so we can't calculate the slope for this interval.

Between 100 minutes and 125 minutes: The distance changes from 'a' miles to 80 miles. Since we still don't have the exact value of 'a', we can't calculate the slope for this interval.

Between 125 minutes and 100 minutes: The distance changes from 80 miles to 100 miles. The time interval is 25 minutes, and the distance change is 100 - 80 = 20 miles.

Therefore, based on the given data, we can conclude that the car travels 20 miles in 25 minutes. To determine the meaning of the slope, we divide the distance change by the time change:

Slope = Distance Change / Time Change

= 20 miles / 25 minutes

= 0.8 miles per minute

So, none of the given options (a, b, c, or d) match the meaning of the slope. The correct interpretation is that the car travels approximately 0.8 miles every minute.

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PLSSSS HELP ILL GIVE THE BRAINLIEST ANSWER!!!!!

PLSSSS HELP ILL GIVE THE BRAINLIEST ANSWER!!!!!

Answers

Answer:

y = \(\frac{3}{4}\) x

Step-by-step explanation:

\(\frac{rise}{run}\) , rise over run, the graph is positive

Write a solution to the equation x^2 = 5 using a radical.

Answers

answer: sqrt5

explanation you take the square root of both sides to get x by itself

The solution is ± √5

The value of the equation is given by x = ± √5

What is an Equation?

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.

It demonstrates the equality of the relationship between the expressions printed on the left and right sides.

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.

Given data ,

Let the equation be represented as A

Now , the value of A is given by

x² = 5   be equation (1)

On simplifying the equation , we get

x² = 5

Taking the radical form , radical notation is the usage of a root in an expression, such as the square or cube root

So , taking square roots on both sides of the equation , we get

The value of x = ±√5

Therefore , the value of A is ±√5

Hence , The value of the equation is given by x = ± √5

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Solve for x: 5x + one third(3x + 6) > 14 x > twelve fifths x > 2 x < twelve fifths x < 2

Answers

The solution of x in the inequality is x > 2

How to solve for x in the inequality?

The inequality is given as:

5x + one third(3x + 6) > 14

Rewrite properly as:

5x + 1/3(3x + 6) > 14

Open the brackets

5x + x + 2 > 14

Subtract 2 from both sides of the inequality

5x + x + 2 - 2> 14 - 2

Evaluate the difference

5x + x > 12

Evaluate the like terms

6x > 12

Divide both sides of the inequality by 2

x > 2

Hence, the solution of x in the inequality is x > 2

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Answer:

x > 2, like the other guy said

Step-by-step explanation:

I hope this helps

Let U​ = { 14​, 15​, 16​, 17​, 18​, 19​, 20 ​},
A​ = { 16​, 17​, 18​, 19 ​}.
Use the roster method to write the set A′.

Answers

Complement of A set in roster form will be {14,15,20}.

U​ = { 14​, 15​, 16​, 17​, 18​, 19​, 20 ​},

A​ = { 16​, 17​, 18​, 19 ​}.

A'= {14,15,20}

A set is mathematically represented in a straightforward way using roster notation. The elements (or members) of a set are listed in a row inside the curly brackets in the roster form. If the set contains more than one element, a comma is used in a roster notation to indicate the separation of every two elements. A list of the elements of a set, each separated by a comma, enclosed in a set of curly brackets, can be used to describe the contents of the set. Roster form is the term for this method of setting forth a set.

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find the surface area ​

find the surface area

Answers

The Surface area of Triangular Prism is 132 cm².

We have have the dimension of prism as

Sides = 3 cm, 4 cm, 5 cm

and, l = 10 cm

and, b= 4 cm

Now, Surface area of Triangular Prism as

= (sum of sides) l + bh

= (3 + 4 + 5)10 + 4 x 3

= 12 x 10 + 12

= 120 + 12

= 132 cm²

Thus, the Surface area of Triangular Prism is 132 cm².

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Using the image below, answer the following question: you are asked to pick 2
marbles out of the bag, what is the probability of picking a blue marble and then a
green marble, without replacing the blue one?

PLEASE URGENT

Answers

The probability of picking a blue marble and then a green marble without replacing the blue one is 4/45.

We have,

We see that there are 10 marbles.

Now,

Number of blue marbles = 2

Number of green marbles = 4

Now,

The probability of picking a blue marble first is 2/10, as there are 2 blue marbles out of 10 in total.

After picking a blue marble, there will be 9 marbles left in the bag.

The probability of picking a green marble second, without replacing the blue one, is 4/9, as there are 4 green marbles remaining out of the 9 marbles in total.

Now,

P(blue marble and green marble) = P(blue marble) x P(green marble)

= (2/10) x (4/9)

= 8/90

= 4/45.

Therefore,

The probability of picking a blue marble and then a green marble without replacing the blue one is 4/45.

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Using the image below, answer the following question: you are asked to pick 2marbles out of the bag,

Ashley is training to run a marathon. On Monday, she runs 21 miles in 3 hours. On Wednesday, she runs 10 1/2 miles in 1 1/2 hours. What is the constant of proportionality in miles per hour?​

Answers

Answer:

10.5 mph

Step-by-step explanation:

To find the constant of proportionality in miles per hour, we need to divide the distance (in miles) by the time (in hours) for each of the two runs, and then take the average of the two rates.

For Monday's run:

Rate = Distance / Time = 21 miles / 3 hours = 7 miles per hourFor Wednesday's run:Rate = Distance / Time = 10 1/2 miles / 1 1/2 hours = (21/2) miles / (3/2) hours = 14 miles per hour

To find the average rate, we add the two rates and divide by 2:Average rate = (7 miles per hour + 14 miles per hour) / 2 = 10.5 miles per hour

Therefore, the constant of proportionality in miles per hour is 10.5. This means that Ashley runs at an average rate of 10.5 miles per hour during her training.

How am I supposed to do this? I WILL GIVE BRAINLEST!

How am I supposed to do this? I WILL GIVE BRAINLEST!
How am I supposed to do this? I WILL GIVE BRAINLEST!

Answers

Answer:

D. 28.

Step-by-step explanation:

Students with 1 to 3 pairs of shoes:

About 32. Just say 32.

Students with 13 - 15 pairs of shoes:

4. Just say 4.

Solve 32 - 4:

32 - 4= 28.28 is your answer.
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