Answer:
Image
Step-by-step explanation:
PLEASE HELP!!!
What type of association does the following scatterplot plot represent
A-Positive linear association
B-Negative linear association
C-Positive nonlinear association
D-Negative nonlinear association
Answer:
b
Step-by-step explanation:
...
HIHI PLS help ;( having trouble </3
it says "The graph of the inequality y>-1/2x-2 should have the test point 0,0 shaded. true or false"
THANK YOU ヽ(=^・ω・^=)丿
Answer:
True
Step-by-step explanation:
Substitute in x = 0 and y = 0. If the statement is true, then (0, 0) is shaded.
y > -1/2x - 2
0 > -1/2(0) - 2 = -2
0 > -2 is true, so (0, 0) is shaded
suppose you compute a confidence interval with a sample size of 82. what will happen to the confidence interval if the sample size decreases to 67?
It is important to have a sufficient sample size when computing a confidence interval to ensure accuracy and precision.
When we compute a confidence interval with a sample size of 82, the confidence interval will be more precise and narrower compared to a confidence interval computed with a smaller sample size. This is because a larger sample size provides more information and reduces the effect of random variation in the data.
However, if the sample size decreases to 67, the precision of the confidence interval will decrease and it will become wider. This is because a smaller sample size will have more random variation and may not accurately represent the population. As the sample size decreases, the confidence level also decreases, indicating that there is more uncertainty about the true population parameter.
A larger sample size will result in a more reliable estimate of the population parameter and a narrower confidence interval. Conversely, a smaller sample size will result in a less reliable estimate of the population parameter and a wider confidence interval.
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I’m confused math has never really been my strong suit
Thus, 25.13 cubic inches is the closest estimate for the ice cream's overall volume.
what is volume ?Volume is a mathematical concept that describes how much space a three-dimensional object occupies. It is frequently expressed in terms of cubic units like cubic metres (m3), cubic feet (ft3), or cubic centimetres (cm3). Depending on the shape of the object, different formulas can be used to determine its volume. Consider this: The formula V = l w h, where l has been the length, w is the broad, and h corresponds to the height of the rectangular prism (box), gives the volume of the object. A sphere's volume can be calculated using the method V = (4/3)r3, where r is the sphere's radius.
given
The formula for a cone's volume is as follows, assuming that the ice cream has the correct circular cone shape with radius r = 2 in and height h = 6 in:
\(V = (1/3) * \pi * r^2 * h\)
Inputting the values provided yields:
\(V = (1/3) * \pi * (2 in) * (2 in) * (6 in)\) = 25.13 cubic inches
Thus, 25.13 cubic inches is the closest estimate for the ice cream's overall volume.
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The complete question is:-
r = 2 in.
h = 6 in.
Which is closest to the total volume of the ice
cream?
help asap !! please and thanks
Answer: A = 2, 1 1/2
B = -2, 1 1/2
C = -1 1/2, 1/4
Step-by-step explanation: this should be correct, you can match these points to the ones on the graph to see if i'm right, but i'm pretty sure these are correct
Worth 50 points
The table shows the inputs and corresponding outputs for the function f(x) = StartFraction 1 Over 8 EndFraction(2)x. A 2-column table with 5 rows. Column 1 is labeled x with entries 0, 2, 4, 6, 8. Column 2 is labeled f (x) with entries StartFraction 1 Over 8 EndFraction, one-half, 2, 8, 32. Find the following values of the function. f -1 (one-half) = f -1 (8) =
Answer:2,6
Step-by-step explanation:Edge2021
Answer
2,6
Step-by-step explanation:
if an event is getting a letter grade of a in your statistics class, what is the complement of receiving an a?
If an event is getting a letter grade of A in your statistics class, then the complement of receiving A is getting any other letter grade(B, C, D, E, F)
The complement of an event refers to the set of all outcomes that are not included in the event. In this case, the event is getting a letter grade of A in your statistics class. The complement of this event would be getting any other letter grade that is not an A, such as a B, C, D, or F.
To find the probability of the complement of receiving an A, we need to first find the probability of receiving an A. Let's assume that the probability of receiving an A in your statistics class is p(A). Then, the probability of not receiving an A (the complement event) would be denoted as p(A') and would be calculated as:
p(A') = 1 - p(A)
This is because the sum of the probabilities of all possible outcomes is always equal to 1. Therefore, if the probability of getting an A is, for example, 0.8, then the probability of not getting an A would be:
p(A') = 1 - 0.8 = 0.2
So, the complement of receiving an A in your statistics class is not receiving an A, which includes getting any other letter grade (B, C, D, or F), and the probability of this event is equal to 0.2 (or 20%, in this example).
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PLEASE HELP URGENT!!!!! Which equation represents a line with a slope of -2 and a y-intercept of 3?
a. y= -2/3x+ 3
b. y= -2/3x+ 2
c. y=-2x+3
d. y=3x-2
Answer:
23299jhrd
Step-by-step explanation:
Lol
Which power of Congress is the most important?
Select one:
O a. the authority to regulate commerce
O b. the authority to establish the federal courts.
O c. the authority to make laws
O d. the authority to coin money
To number the apartments in a building, metal plates with digits were used: one digit on each plate. How many plates were used to number 136 apartments in the building?
Answer:
301 plates
Step-by-step explanation:
For numbers between 0 and 9, 1 plate was used each.
This means that 10 plates were used.
For numbers between 10 and 99, 2 plates were used for each.
This means that the number of plates used will be:
2 * 90 = 180 plates
For numbers between 100 and 136, 3 plates were used for each.
This means that the number of plates used is:
3 * 37 = 111 plates
The total number of plates used is therefore:
10 + 180 + 111 = 301 plates
301 plates were used in total.
Given the points (-6, 4) and (1, 2):
(a) Find the slope of the line that passes through both points.
Slope Formula: (y2 - y1) / (x2 - x1)
Point 1 = (-6, 4)
Point 2 = (1, 2)
Slope = (2 - 4) / (1 - - 6)
Slope = -2 / 7
Answer: -2/7
Hope this helps!
please please pleasee help me with this
Answer:
i think it's D mybe
Step-by-step explanation:
gentle ben is a horse at a colorado dude ranch. over the past 8 weeks, a veterinarian took random weekly glucose readings from gentle ben. the sample mean of the 8 blood tests was we may assume that x has a normal distribution, and the population values are . does the sample data indicate that gentle ben has a glucose rate higher than 85? (use
At the 0.05 level of confidence, there is enough data to say that Gentle Ben's blood glucose is higher than 85 mg/100 ml.
What is normal distribution?A probability distribution that is symmetric about the mean is the normal distribution, also referred to as the Gaussian distribution. It demonstrates that data that are close to the mean occur more frequently than data that are far from the mean. The normal distribution appears as a "bell curve" on a graph. Data are symmetrically distributed and skew-free in a normal distribution. As one moves away from the center, values start to taper off and the majority of values are concentrated in this area. In a normal distribution, the mean, mode, and median are identical measures of central tendency.
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the time required to do a job varies inversely as the number of people working. it takes 5hr for 7 bricklayers to build a park well. how long will it take 15 bricklayers to complete the job? (round answer to 1 decimal place)
The time to complete 15 bricklayers is 3.5 hours
How to calculate time taken?
The ratio of an object's traveled distance to its constant speed is known as the time formula. Time describes how things happen in time. The order of this movement is such that it moves from the past to the present and then into the future.
The first step is to calculate the constant proportionality
t ∝ 1/n
t = k/n
Where t = time, K= constant and n = number of people
t = k/n
k =tn
= 5×7 = 35
∴t = 35/n
for n = 10,
t = 35/10
t = 3.5 hours.
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What is the inverse of f(x) = (1-2x)/(3x+6)?
Answer:
y = (1-2x)/(3x+6)
Step-by-step explanation:
To find the inverse of a function, we can swap the x and y variables in the original function and then solve for y. In this case, the original function is f(x) = (1-2x)/(3x+6). Swapping the x and y variables, we get:
y = (1-2x)/(3x+6)
To solve for y, we can first multiply both sides of the equation by (3x+6) to eliminate the fraction:
y(3x+6) = 1-2x
Expanding the left-hand side, we get:
3xy + 6y = 1-2x
Next, we can move all the terms containing y to the left-hand side of the equation and all the other terms to the right-hand side:
3xy + 6y = 1-2x
3xy + 6y - 1 + 2x = 0
Finally, we can divide both sides of the equation by 3 to solve for y:
y(3x+6) - (1-2x)/3 = 0
y = (1-2x)/(3x+6)
Thus, the inverse of the original function f(x) = (1-2x)/(3x+6) is y = (1-2x)/(3x+6).
Tell me if this helped :)
The questions are in the image above.
Answer:
Hope this helps :)
you will find every answer in the photo I sent
A local hamburger shop sold a combined total of 628 hamburgers and cheeseburgers on Thursday. There were 72 fewer cheeseburgers sold than hamburgers
How many hamburgers were sold on Thursday?
Answer:
278 cheeseburgers and 350 hamburgers sold on Thursday
Step-by-step explanation:
To confirm that these combined equal 628 we can add them together using the equation 278 + 350. Once confirm that these both equal 628 when combined, we can find the difference between the 350 hamburgers and 278 cheeseburgers by subtracting one from the other using the equation, 350 - 278. When you do that, you will get a difference of 72 which means that there were 72 fewer cheeseburgers sold than hamburgers.
(sorry if this is confusing, I'm not good at explaining things)
for the school play, the advance tickets cost $3, while tickets at the door cost $5. Thirty more tickets were sold at the door than in advance, and $2630 was collected. How many of each kind of ticket was sold?
Answer:
310 advance tickets were sold and 340 at the door tickets were sold.
Step-by-step explanation:
You know that thirty more tickets were sold at the door than in advance so we can find out how much that costs first.
More tickets sold = 30 × $5
= $150
Remaining tickets = $2630 - $150
= $2480
Now that you have deducted the extra tickets, $2480 is the sum of the tickets where the number of advance and at the door tickets are the same. You could find how much one "set" costs before finding the number of sets there are.
One set = $3 + $5
= $8
No. of sets = $2480 ÷ $8
= 310
Advance tickets = 310
At the door tickets = 310 + 30
= 340
HELP ANYONESSSSSEEEW
Answer:
a. equation: 5x + x - 6 = 180, x=31
b. m<1=155°, m<2=25°
Step-by-step explanation:
We are given a straight angle (due to the straight line given in the picture), which is intersected by a ray to create <1 and <2.
We are also given that m<1 = 5x and m<2=x-6, and we want to solve for x and find the measures of <1 and <2.
Part a:
Due to angle addition postulate, the measures of <1 and <2 will be equal to the measure of the straight angle.
A straight angle always is equal to 180°.
Based on this information, we can create this equation:
m<1 + m<2 = 180
Now, substitute the values of <1 and <2 into the equation to help solve it.
5x + x - 6 = 180
Combine the x's.
6x - 6 = 180
Add 6 to both sides.
6x = 186
Divide both sides by 6.
x = 31
The value of x is equal to 31.
Part b:
Now that we know the value of x, we can substitute that value to find the measures of <1 and <2.
As we were already given, m<1 = 5x, and since we now know the value of x, we can substitute this value as x.
m<1 = 5x
m<1=5*31
m<1=155°
The same can be said for m<2.
m<2 = x - 6
m<2 = 31 - 6
m<2 = 25°
Find x in each triangle.
Answer:
x=5cm
Step-by-step explanation:
\(\sqrt{4^{2}+3^{2} } =5\)
Quick Sort Given the following array: {5,1,2,7,9,3,7,8,4}, illustrate the operation of PAR- TITION (which is defined on page 4 of the slides of lecture 4) on the given array. Show what the array looks like in each step. ALWAYS use the first element as the pivot.
The sorted array after applying the PARTITION algorithm using the first element (5) as the pivot.
To illustrate the operation of the PARTITION algorithm on the given array {5, 1, 2, 7, 9, 3, 7, 8, 4}, we'll follow the steps of the algorithm and show the array at each step.
1: Choose the first element, 5, as the pivot.
{5, 1, 2, 7, 9, 3, 7, 8, 4}
2: Reorder the array so that all elements smaller than the pivot (5) come before it, and all elements larger than the pivot come after it. This is done by swapping elements.
{4, 1, 2, 3, 5, 9, 7, 8, 7}
3: The pivot is now in its final sorted position. Divide the array into two subarrays, one to the left of the pivot (elements smaller than the pivot) and one to the right of the pivot (elements larger than the pivot).
Left subarray: {4, 1, 2, 3}
Right subarray: {9, 7, 8, 7}
4: Recursively apply the PARTITION algorithm to the left and right subarrays.
For the left subarray:
Choose the first element, 4, as the pivot.
{4, 1, 2, 3}
Reorder the array:
{3, 1, 2, 4}
The left subarray is now sorted.
For the right subarray:
Choose the first element, 9, as the pivot.
{9, 7, 8, 7}
Reorder the array:
{7, 7, 8, 9}
The right subarray is now sorted.
5: The entire array is now sorted.
{3, 1, 2, 4, 5, 7, 7, 8, 9}
This is the final sorted array after applying the PARTITION algorithm using the first element (5) as the pivot.
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Dom runs a pizza business. Last year he took in $88 000 and it cost him $33 000
to run. What is his percentage profit for the year? Round to the nearest cent.
Answer:
The percentage profit for the year is 62.50%
Step-by-step explanation:
Here, we want to calculate the percentage profit
That would be difference between the revenue (88,000) and the cost (33,000) divided by the revenue * 100%
We have this as;
(88,000-33,000)/88,000 * 100%
= 55,000/88,000 * 100%
= 62.50%
What is the most common statistical method of expressing the precision of a series of repetitive measurements?.
The common statistical method of expressing the precision of a series of repetitive measurements is the standard deviation.
What is a standard deviation?It should be noted that the standard deviation is the measure of how dispersed the data is in relation to the mean.
It should be noted low standard deviation implies that data are clustered around the mean, and high standard deviation means data are more spread out.
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Solve with respect to Discrete maths and graph
theory
\( \forall x(P(x) \rightarrow Q(x)) \wedge \forall x(Q(x) \rightarrow R(x)) \Rightarrow \forall x(P(x) \rightarrow R(x)) \)
The given statement is **true**.
The first part of the statement says that for all x, if P(x) is true, then Q(x) is also true. The second part of the statement says that for all x, if Q(x) is true, then R(x) is also true.
Combining these two statements, we can see that for all x, if P(x) is true, then R(x) is also true.
This can be shown using the following steps:
1. Let P(x) be the statement "x is a prime number".
2. Let Q(x) be the statement "x is odd".
3. Let R(x) be the statement "x is greater than 1".
The first part of the statement, $\forall x(P(x) \rightarrow Q(x))$, says that for all x, if x is a prime number, then x is odd. This is true because all prime numbers are odd.
The second part of the statement, $\forall x(Q(x) \rightarrow R(x))$, says that for all x, if x is odd, then x is greater than 1. This is also true because all odd numbers are greater than 1.
Therefore, the given statement, $\forall x(P(x) \rightarrow R(x))$, is true.
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Data was collected on the amount of time that a random sample of 8 students spent studying for a test and the grades they earned on the test. a scatter plot and line of fit were created for the data. scatter plot titled students' data, with points plotted at 1 comma 60, 2 comma 60, 2 comma 70, 2 comma 80, 3 comma 80, 3 comma 90, 4 comma 95, and 4 comma 100, and a line of fit drawn passing through the points 0 comma 40 and 2 comma 70. find the y-intercept of the line of fit and explain its meaning in the context of the data. a. 30; for each additional hour a student studies, their grade is predicted to increase by 30% on the test b. 15; for each additional hour a student studies, their grade is predicted to increase by 15% on the test c. 70; a student who studies for 0 hours is predicted to earn 70% on the test d. 40; a student who studies for 0 hours is predicted to earn 40% on the test
It is expected that a student who studies for 0 hours will score 40% on the exam. Option D is correct.
The y-intercept of the line of fit is the point at which the line intersects the y-axis, which is the value of y when x is equal to 0.
From the given information, the line of fit passes through the points (0, 40) and (2, 70). To find the equation of the line of fit, we need to first find the slope of the line:
Slope = (change in y) / (change in x)
Slope = \(\frac{(70 - 40)}{(2 - 0)}\)
Slope = 30
Now we can use the slope and the point (0, 40) to find the equation of the line using the point-slope form:
\(y - y_1 = m(x - x_1)\)
where m is the slope and \((x_1, y_1)\) is the point on the line. Substituting the values, we get:
\(y - 40 = 30(x - 0)\)
\(y - 40 = 30x\)
\(y = 30x + 40\)
So the equation of the line of fit is
\(y = 30x + 40.\)
The y-intercept of this line is 40, which means that if a student did not study at all (x=0), they are predicted to earn a grade of 40 on the test.
Hence, a student who studies for 0 hours is predicted to earn 40% on the test.
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A bird with a reaction time (this is the time it takes the bird to react after seeing something) of 0.25 s is flying along at a speed of 13.0 m/s. The bird isn't paying attention, and suddenly sees an object 1.4 m in front of it. How far will the bird travel before it can begin to swerve away from the object? Give your answer in meters. Do not enter the units into the answer box. 40.5 points Will the bird in the previous question begin swerving before it hits the tree? Yes, the bird begins swerving before hitting the tree. (Hopefully it avoids a collision!) No, the bird sadly does not begin swerving before it hits the tree. (In this eventuality, please know that the bird was totally fine-so no worries.)
The bird will travel a distance of 3.25 meters before it can begin to swerve away from the object.
To calculate the distance the bird will travel before it can begin to swerve, we need to consider the bird's reaction time and its speed. The bird's reaction time is given as 0.25 seconds, and its speed is 13.0 m/s.
In 0.25 seconds, the bird will travel a distance equal to its speed multiplied by the reaction time:
Distance = Speed × Time
Distance = 13.0 m/s × 0.25 s
Distance = 3.25 meters
Therefore, the bird will travel 3.25 meters before it can start to swerve away from the object.
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A bag contains 30 red marbles and 15 purple marbles. Mr. Clark wants to add 270 marbles to the bag. He wants the ratio of red to purple marbles to remain the same. How many of each should he add? A. 70 red marbles 200 purple marbles B. 200 red marbles and 70 purple marbles C. 180 purple marbles and 90 red marbles D. 180 red marbles and 90 purple marbles
Answer: 20 PURPLE marbels
Step-by-step explanation:
no explanation
Answer:
the is 200 purple marbles 70 red marbles
formula for volume of a pyramid with a triangular base
The formula for finding the volume of a pyramid with a triangular base is:
V = (1/3) * A * h
Where:
V represents the volume of the pyramid,
A represents the area of the triangular base, and
h represents the height of the pyramid.
To find the volume, we multiply the area of the triangular base by the height and then divide the result by 3.
To calculate the area of the triangular base (A), you can use different formulas depending on the available information about the triangle. Here are a few common scenarios:
1. If you know the base and height of the triangular base:
A = (1/2) * base * height
2. If you know the lengths of all three sides (a, b, c) of the triangular base:
You can use Heron's formula to find the area:
\(A = \sqrt{(s * (s - a) * (s - b) * (s - c))\)
where s represents the semiperimeter of the triangle, given by s = (a + b + c)/2.
Once you have determined the area of the triangular base, you can substitute it into the volume formula along with the height of the pyramid to calculate the volume.
It's important to ensure that the base and height measurements are in the same unit of measurement for accurate calculations. Remember that the resulting volume will be expressed in cubic units, corresponding to the unit of length used for the base and height.
By using the formula V = (1/3) * A * h, you can calculate the volume of a pyramid with a triangular base, provided you have the necessary measurements.
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what is the probablity that six consecutive integers will be chosen as the winning lottery numbers where each number chsoen is an integer between 1 and 40
The probability is 0.00000911843.
The number of terms is 40 because the number selected falls within the range of integers 1 through 40 (inclusive).
Thus; n = 40
The combination formula, which is; gives the probability that 6 integers (r = 6)—the number of possible outcomes—will be obtained without repetition.
C(n, r) = n!/((n - r)!(n - r)!)
C(40, 6) = 40!/(6!(40 - 6)!)
C(40,6) = 3838380
When it comes to selecting a single item, there are several options available.
(1 - 6, 2 - 7, 8 - 13,...e.t.c)
There will be 35 successful results in all.
The likelihood that the winning numbers will be chosen from a set of six consecutive integers is;
P (that six consecutive integers will be chosen at random as the winning numbers) = likelihood of favorable outcomes/probabilities = 35/3838380 = 0.00000911843
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How many 5 - digit numbers have the second digit odd and the fifth digit at least four times the second digit?
Answer: 908 5-digit numbers
Step-by-step explanation:
example of 5 digit number with conditions met: 11004
Total number of 5 digit numbers:
99999-10000+1=
100000-10000=90000 5 digit numbers
2nd digit: 5th digit possibilities
y>=4x
x: y
1: 4, 5, 6, 7, 8, 9 ==> 6 digit options
2: 8, 9 ==> 2 digit options
How about remaining digits?
5-2=3 remaining digits to fill
Random Selection for other 3 digits(1-9):
1: 00-99 ==> 99-0+1=99+1=100 digit options
2: 00-99 ==> 99-0+1=99+1=100 digit options
.
.
9: 0-99 ==> 99-0+1=99+1=100 digit options
9*100=900
900+6+2=908 5-digit numbers
There are 300 5-digit numbers meeting the conditions: second digit odd (1, 3, 5, 7, or 9) and fifth digit at least four times the second digit (4, 5, 6, 7, 8, or 9).
Let's analyze the given conditions:
The second digit is odd: The second digit can be any of the odd digits, i.e., 1, 3, 5, 7, or 9.
The fifth digit is at least four times the second digit: The fifth digit can be any of the digits 4, 5, 6, 7, 8, or 9, as it should be at least four times the second digit.
Now, let's calculate the number of possibilities for each digit:
For the second digit, there are 5 options (1, 3, 5, 7, or 9).
For the fifth digit, there are 6 options (4, 5, 6, 7, 8, or 9).
For the remaining three digits (first, third, and fourth), they can be any digit (0-9) since no specific conditions are given for them.
Therefore, the total number of 5-digit numbers that meet the given conditions is:
Total = Number of options for the second digit × Number of options for the fifth digit × Number of options for the remaining three digits
Total = 5 (options for the second digit) × 6 (options for the fifth digit) × 10 (options for each of the remaining three digits)
Total = 5 × 6 × 10
Total = 300
So, there are 300 5-digit numbers that have the second digit odd and the fifth digit at least four times the second digit.
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