Answer:
reflection then rotation
Step-by-step explanation:
A = 2/3 mb solve for b
\(b=\frac{3A}{2m}\).
Step-by-step explanation:1. Write the expression.\(A = \frac{2}{3} mb\)
2. Multiply by the reciprocal of the fraction.\(\frac{3}{2} A = \frac{2}{3} mb*\frac{3}{2}\\ \\\frac{3}{2} A =mb\)
3. Divide both sides by m and simplify.\(\frac{\frac{3}{2} A}{m} =\frac{mb}{m} \\ \\\frac{\frac{3}{2} A}{m} = b\\ \\\frac{3}{2}*\frac{A}{m} =b\\ \\\frac{3A}{2m}=b\\\\ b=\frac{3A}{2m}\)
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(x^3 – 2x² – 4) / (x - 2)
Step-by-step explanation:
(((x3) - 2x2) - 4x) - 2 = 0
STEP
2
:
Checking for a perfect cube
2.1 x3-2x2-4x-2 is not a perfect cube
Trying to factor by pulling out :
2.2 Factoring: x3-2x2-4x-2
Thoughtfully split the expression at hand into groups, each group having two terms :
Group 1: -4x-2
Group 2: -2x2+x3
Pull out from each group separately :
Group 1: (2x+1) • (-2)
Group 2: (x-2) • (x2)
Bad news !! Factoring by pulling out fails :
The groups have no common factor and can not be added up to form a multiplication.
Polynomial Roots Calculator :
2.3 Find roots (zeroes) of : F(x) = x3-2x2-4x-2
Polynomial Roots Calculator is a set of methods aimed at finding values of x for which F(x)=0
Rational Roots Test is one of the above mentioned tools. It would only find Rational Roots that is numbers x which can be expressed as the quotient of two integers
The x and y intercepts for the linear equation x – 2y = -8 is
Answer:
x- intercept = - 8 , y- intercept = 4
Step-by-step explanation:
to find the x- intercept let y = 0 in the equation and solve for x
x - 2(0) = - 8
x - 0 = - 8
x = - 8 ← y- intercept
to find the y- intercept let x = 0 in the equation and solve for y
0 - 2y = - 8
- 2y = - 8 ( divide both sides by - 2 )
y = 4 ← y- intercept
a rectangle with a width of 30 centimeters has a perimiter of 100 centimeters to 160 centimeters graph a compound inequality
Answer:
5 ≤ L ≤ 35
Step-by-step explanation:
Let w represent the width of the rectangle.
The perimeter (P) of the rectangle is given by:
P = 2w + 2L
Where L is the length of the rectangle.
We know that w = 30 cm and that the perimeter is between 100 and 160 cm. We can now set up our compound inequality:
100 ≤ 2(30) + 2L ≤ 160
100 ≤ 90 + 2L ≤ 160
10 ≤ 2L ≤ 70
We can now divide both sides by 2 to solve for L:
5 ≤ L ≤ 35
Therefore, the compound inequality that represents the graph of a rectangle with a width of 30 centimeters and a perimeter of 100 centimeters to 160 centimeters is: 5 ≤ L ≤ 35
How many thirds are in 12?
Work out the volume of the prism height of 12 4 and five
The calculated volume of the prism is 702 cubic cm
Finding the volume of the prismFrom the question, we have the following parameters that can be used in our computation
The trapezoidal prism (see attachment)
The formula of the volume of a trapezoidal prism is
Volume = Base area * Height
Where we have
Base area = 1/2 * (8 + 10) * 6
Evaluate the sum of 8 and 10
Base area = 1/2 * 18 * 6
Evaluate the products of 1/2, 18 and 6
Base area = 54
Also, we have
Height = 13
So, the volume is calculated as
volume = 13 * 54
Evaluate
volume = 702
Hence, the volume of the prism is 702 cubic cm
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Please help me with this proof.
Answer:
See below
Step-by-step explanation:
For the second step, \(\angle T\cong\angle R\) by Alternate Interior Angles. The rest of the steps appear to be correct.
Find the length of the third side of each triangle - Find Hypotenuse
Answer:
First one 28
Second one 53
Step-by-step explanation:
Using pythagoras theorem
Sqrt(24^2+7^2)=28
sqrt(45^2+28^2)=53
Determine whether each point lies on the graph of the equation.(a) 2x - y - 3 = 0 (a) (1, 2)Yes, the point is on the graph.No, the point is not on the graph.(b) (1, -1)Yes, the point is on the graph.No, the point is not on the graph.
Answer:
a) (1, 2) not on the graph.
b) (1, -1) is on the graph.
Step-by-step explanation:
Given the equation of the line as:
\(2x - y - 3 = 0\)
The points given are
a) (1, 2)
To determine whether it is on the graph of the line or not.
To do so, we can do 2 things:
1. Draw the graph and plot the point on the graph to check whether it is on the graph or not.
2. To put the point in the given equation of the line, whether the equation is satisfied or not.
For method 1: Kindly refer to the attached image of the line and point plotted.
Method 2:
Let us put \(x=1, y=2\) in the Left Hand Side (LHS) of equation.
\(2\times 1 - 2 - 3\\\Rightarrow -3 \neq 0 , RHS\)
(1, 2) Not on the graph.
(b) (1, -1)
For method 1: Kindly refer to the attached image of the line and point plotted.
Method 2:
Let us put \(x=1, y=-1\) in the Left Hand Side (LHS) of equation.
\(2\times 1 - (-1) - 3\\\Rightarrow 3-3 = 0 = RHS\)
(1, -1) is on the graph.
Can someone help me with is
Answer:
It is not equivalent
Step-by-step explanation:
Because the first expression simplified is 3x with the power of 9, and the first expression simplifies to x with a power of 9.
Answer:
No, they are not equivalent.
Step-by-step explanation:
In the case of the first expression: x³ * x³ * x³, you will solve the power first, before multiplying the whole numbers.
However, in terms of the second one, you are multiplying the powers first, and then solving for the power.
Take for example, x = 2. Plug in 2 for x in the expressions given:
x³ * x³ * x³ = 2³ * 2³ * 2³ = 8 * 8 * 8 = 64 * 6 = 512
However,
2^(3 * 3 * 3) = 2^(27) = 134,217,728
~
Evaluate the function f(x) =x/2-5
For x=-3
F(-3)
Maine has a cold climate in the winter. What is the probability of the temperature falling below 32 Fahrenheit in Maine during the month of January.
The probability is closer to one than zero.
Probability theory is used to analyze and predict the likelihood of events happening in various fields such as statistics, gambling, physics, finance, and more. It allows us to make informed decisions based on the likelihood of different outcomes. In probability theory, the total number of possible outcomes is important to determine the probability of a single event occurring. By comparing the favorable outcomes to the total outcomes, we can calculate the probability of an event happening.
Probability is a measure of the likelihood of an event to occur. Many events cannot be predicted with total certainty. We can predict only the chance of an event to occur i.e., how likely they are going to happen, using it. Probability can range from 0 to 1, where 0 means the event to be an impossible one and 1 indicates a certain event. Probability for Class 10 is an important topic for the students which explains all the basic concepts of this topic. The probability of all the events in a sample space adds up to 1.For example, when we toss a coin, either we get Head OR Tail, only two possible outcomes are possible (H, T). But when two coins are tossed then there will be four possible outcomes, i.e {(H, H), (H, T), (T, H), (T, T)}.
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please help me im doing pre alg and i cant figure out wether i shade up or to the side; graph x > 1
The representations of the inequality is an open circle is at 1 and a bold line starts at 1 and is pointing to the right.
How to graph an inequality?An inequality compares two values, showing if one is less than, greater than, or simply not equal to another value e.g. 5 < 6, x ≥ 2, etc.
Since our answer is x > 1. An open circle will be at 1 and a bold line starts at 1 and is pointing to the right (>). Check the attached image.
Note: You only shade up if you have ≤ (less than or equal) or ≥ (greater than or equal).
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Please help and how do you know this answer
Answer:
21
Step-by-step explanation:
Answer:
1.67
Step-by-step explanation:
25/15 = 1.67
The mean is estimated by dividing the total of the values by the range of values.
Show your work and write an expression using the following criteria:
1. A dividend greater than 1,000
2. The quotient is 58 with a remainder of 22
Answer:
This is correct explanation
Step-by-step explanation:
A dividend is a number we want to divide by another number. It's supposed to be greater than 1000.
Quotient - the integer result of division. Remainder - well, what remains.
9/4 = 2, with remainder 1.
You want to find a number greater than 1000, which, when divided by another number, results in 37, with a remainder of 4.
I would multiply 37 by an increasing number until we get a product greater than 1000. This number is the one you are dividing by. Now add 4 to the product, so that when the sum is divided by the number you found we'll get a remainder of 4.
Find the volume of a rectangular prism with a length of 12 inches a width of 4.5 inches and a height of 3.6 inches
Answer:
194.4
Step-by-step explanation:
V=l*w*h
V=12*4.5*3.6
V=194.4
Calculate the mean, the variance, and the standard deviation of the following discrete probability distribution. (Negative values should be indicated by a minus sign. Round intermediate calculations to at least 4 decimal places. Round your final answers to 2 decimal places.)
x −36 −26 −15 −4
P(X = x) 0.32 0.36 0.21 0.11
Mean
Variance
Standard deviation
Mean = 24.47
Variance = 108.31
Standard deviation = 10.41
Step-by-step explanation:The probability distribution table has been attached to this response.
(1) To calculate the mean (m)
(a) First multiply each of the values of x by their corresponding probability values.
This is shown in the third column of the table.
(b) The sum of the results in the third column gives the mean of the distribution. i.e
m = ∑xP(x) = 11.52 + 9.36 + 3.15 + 0.44
m = 24.47
(2) To calculate the variance (σ²).
(a) First find the square of the difference between the values of x and the mean (m) calculated in (1b) above. i.e
(x - m)²
The result is shown in the fourth column of the table.
(b) Next, multiply each of the results in the fourth column (x - m)², by their corresponding probability values P(X = x). i.e
(x - m)²(P(X = x))
The result is shown in the fifth column of the table.
(c) Now find the variance (σ²) which is the sum of the results in the fifth column. i.e
σ² = ∑(x - m)²(P(X = x)) = 42.5411 + 0.8427 + 18.8330 + 46.0923
σ² = 108.3091
σ² = 108.31 [to 2 decimal places]
(3) To calculate the standard deviation (σ)
The standard deviation is the square root of the variance of the distribution. Calculate this by finding the square root of the result in (2c) above.
σ = √σ²
σ = \(\sqrt{108.31}\)
σ = 10.4072
σ = 10.41 [to 2 decimal places]
I do not understand why the answer is a) for this equation: y'=2y+x. I assumed that the answer is c) or a), because numbers in the equation are positive, but I'm not sure this is the correct method here
The slope field for the differential equation would be D . Graph D .
What are slope fields ?A slope field provides a pictorial representation of differential equations that displays the magnitude and direction of the derivative or slope for solution curves at various points in the plane .
The length of line segments represents the magnitude, while the direction indicates the sign of the slope.
The equation given is y = 2 y + x which means that the slope is positive. This is why we can tell that Graph D has the correct slope field as it goes up for positive.
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PLEASE HELP ME FAST!!!!!
Below are the data collected from two random samples of 500 American adults on the number of hours they work per day (rounded to the nearest hour):
Number of hours of work per day 6 7 8 9 10
Sample A: Number of adults 60 90 145 150 55
Sample B: Number of adults 70 80 140 145 65
Ryan concludes that adults spend a mean of 8 hours working each day. Malia thinks the mean is 9 hours. Who is correct—Ryan or Malia? Explain your answer in two or three sentences. Make sure to use facts to support your answer. (10 points)
The average number of hours that adults spend working each day is 8 hours and Ryan is correct because he got the average of 8 right.
We know that,
The sample mean is a statistic that is computed by taking the arithmetic mean of the values of a variable in a sample. If the sample is taken from probability distributions with a shared expected value, the sample mean is an estimator of that value.
The mean is gotten from the formula;
x' = ∑x/n
Number of hours of work per day are; 6, 7, 8, 9 and 10
Thus; sum up all of it
∑x = 6 + 7 + 8 + 9 + 10
∑x = 40
Mean is; x' = 40/5
x' = 8
Since Ryan concluded that the average is 8 hours,
Therefore,
We can say that Ryan is correct.
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You are choosing between two health clubs club a offers membership for a fee of $13 plus a monthly fee of $28 club B offers membership for a fee of $19 plus a monthly fee of $27 after how many months will the total cost of each health club be the same? What will be the total cost for each club?
To determine when the total cost of each health club will be the same, we can set up an equation and solve for the number of months.
Let's assume the number of months is represented by 'x'.
For Club A, the total cost is given by:
Total cost of Club A = $13 (one-time fee) + $28x (monthly fee)
For Club B, the total cost is given by:
Total cost of Club B = $19 (one-time fee) + $27x (monthly fee)
To find the number of months when the total cost is the same, we set the two equations equal to each other:
$13 + $28x = $19 + $27x
Simplifying the equation, we get:
$28x - $27x = $19 - $13
$x = 6
Therefore, after 6 months, the total cost of each health club will be the same.
To find the total cost for each club after 6 months, we substitute the value of 'x' back into the equations:
Total cost of Club A after 6 months = $13 + $28(6) = $13 + $168 = $181
Total cost of Club B after 6 months = $19 + $27(6) = $19 + $162 = $181
So, the total cost for both Club A and Club B will be $181 after 6 months.
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1,1,2,3,4,5,7,9,
Find the common value
Suppose that the age of all the U.S. first ladies when they married was recorded. The mean age of U.S. first ladies when they married would be a:________A) PopulationB) StatisticC) SampleD) Parameter
Answer:
B) Statistic
Step-by-step explanation:
The mean age of U.S. first ladies when they married would be a Statistic. This is because the mean age would be a specifically targeted value of the population that is being analyzed. In this scenario, the population would be all of the First Ladies, while the Sample would be the data gathered from the population under certain parameters. Statistics can be a variety of different values that revolve around the samples gathered such as average age, average height, max number of blue-eyed First Ladies, etc.
What is the instantaneous rate of change y=sqrtx of at x = 2? Responses negative 1 over 2 negative 1 over 4 negative 1 none of these none of these
The instantaneous rate of change of y = √x at x = 2 is √2 / 2.
To find the instantaneous rate of change of y = √x at x = 2, we need to calculate the derivative of the function with respect to x and evaluate it at x = 2.
Taking the derivative of y = √x using the power rule for differentiation, we have:
dy/dx = (1/2) × x^(-1/2)
Now, substituting x = 2 into the derivative expression:
dy/dx = (1/2) × 2^(-1/2)
= (1/2) × √2
= √2 / 2
Therefore, the instantaneous rate of change of y = √x at x = 2 is √2 / 2.
None of the provided options (-1/2, -1/4, -1) are the correct instantaneous rate of change at x = 2.
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PlZZZ HELP
Which of the following is equal to
Answer:
1st option
Step-by-step explanation:
4 \(\frac{1}{3} \) ÷ 2 \(\frac{3}{5} \) ( change mixed numbers into improper fractions )
= \(\frac{13}{3} \) ÷ \(\frac{13}{5} \)
To perform the division
leave 1st fraction, change ÷ to × , turn 2nd fraction ' upside down'
= \(\frac{13}{3} \) × \(\frac{5}{13} \)
Answer:
the answer is A
\(4 \times \frac{1}{3} \div 2 \times \frac{3}{5} \\ = \frac{13}{3 } \div \frac{13}{5} \\ = \frac{13}{3} \times \frac{5}{13} \\ = \frac{5}{3} \)
He did his job _____ but also very _____.
Answer: he did his job fast but also very efficiently.
Step-by-step explanation:
its easy look at the word and then stop and think for a second and say hmmm in your head is it gonna be fast and then see it fast makes a good one and then the other one to just do the same thing and also i learend this in LA
wants to tile the surface of a rectangular storage case that is inches long, inches wide, and inches tall. If he uses all green tiles, how many tiles will he need?
The surface area of the rectangular prism is 396 square inches
He will need 504 tlles
What is the surface area of the rectangular prism?From the question, we have the following parameters that can be used in our computation:
7 in by 12 in by 6 in
The surface area of the rectangular prism is calculated as
Area = 2 * (7 * 12 + 7 * 6 + 12 * 6)
Evaluate
Area = 396
Hence, the area is 396 square inches
The number of tiles is 7 * 12 * 6 = 504
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Question
wants to tile the surface of a rectangular storage case that is 7 inches long, 12 inches wide, and 6 inches tall. If he uses all green tiles, how many tiles will he need?
solve for X:
10( x + 1) = 2 x-7
-1
-3
-17/8
-18/8
-17/8
Step-by-step explanation:
10( x + 1) = 2 x-7
10x + 10 = 2x - 7
10 + 7 = 2x - 10x
17 = - 8x
x = -17 /8
Answer:
Hiya There....!!!
______________________
Isolate the variable by dividing each side by factors that don't contain the variable.
Exact Form:
x = − 17 /18Decimal Form:
x = − 2.125
Mixed Number Form:
x = − 2/ 1 8
_______________________
“To forgive is wisdom, to forget is genius. And easier. Because it's true. It's a new world every heart beat.”
― Joyce Cary, The Horse's Mouth
__________________________
Think of life as a mytery because well it sort of is! You don't know what may happen may be good or bad but be a little curious and get ready for whatever comes your way!! ~Ashlynn
An investor invested a total of 57000 into two bonds. One bond paid 3% simple interest, and the other paid 2 7/8% interest. The investor earned a total of $1676.25 in annual interest. How much was originally invested in each account?
Answer:
$30,000 (at 3%) and $27,000 (at 2 7/8%)
Explanation:
The investor invested a total of 57000
• Let the amount invested at 3% simple interest = x
,• Then, the amount invested at 2 7/8% simple interest = 57000-x
Recall the formula for simple interest:
\(Simple\: Interest=\frac{Principal\times Rate\times Time}{100}\)Interest at 3%
\(\begin{gathered} S\mathrm{}I\mathrm{}=\frac{x\times3\times1}{100} \\ =\frac{3x}{100} \\ =0.03x \end{gathered}\)Interest at 2 7/8%
\(\begin{gathered} SI=\frac{(57000-x)\times2\frac{7}{8}\times1}{100} \\ =\frac{2.875(57000-x)}{100} \\ =0.02875(57000-x) \end{gathered}\)Total Interest
The investor earned a total of $1676.25 in annual interest. Therefore:
\(\begin{gathered} 0.03x+0.02875(57000-x)=1676.25 \\ 0.03x+1638.75-0.02875x=1676.25 \\ 0.03x-0.02875x=1676.25-1638.75 \\ 0.00125x=37.5 \\ x=\frac{37.5}{0.00125} \\ x=30,000 \end{gathered}\)Thus, the amount invested at 3% simple interest = $30,000
The amount invested at 2 7/8% simple interest = 57,000-30,000 = $27,000
7).
2. Hot Text: For each graph, choose the correct sentence to describe the graph.
The graph represents a proportional relationship.
The graph does not represent a proportional relationship.
a. The graph represents a proportional relationship.
b. The graph does not represent a proportional relationship.
c. The graph does not represent a proportional relationship.
d. The graph represents a proportional relationship.
What is a proportional relationship?A proportional relationship is a relationship in which a constant ratio between the output variable and the input variable exists.
The equation that defines the proportional relationship is a linear function with slope k and intercept zero presented as follows:
y = kx.
Hence graphs a and d represent proportional relationship, as they have intercepts at the origin.
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What is the exact value of cos(c + d), given sinc =24/25 for c in Quadrant II and cos d =-3/4 for d in Quadrant III?
-47/100
-1 3/100
21-24squareroot7/100
21
=24squareroot7/100