Substitute x = -3 and y = -5 into the expression -7y² + 9x

Answer:

I think the answer is probably A

Answer:

C

Step-by-step explanation:

just took the unit test

Graph Y represents the inverse of function f.

In mathematics, the inverse function of a feature f is a function that undoes the operation of f.

To find the inverse of a function, write the function y as a function of x i.e. y = f(x) after which solve for x as a function of y.

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False. The total shrink for a three- and four-bend saddle is equal to that of an offset.

The statement "total shrink for a three- and four-bend saddle is twice that of an offset" is true.

1. Shrink: Shrink refers to the amount of extra conduit length needed to account for bends in the conduit, so it maintains the required distance between two points after bending.

2. Offset: An offset is a two-bend conduit configuration used to navigate around obstacles while maintaining a straight path. The total shrink for an offset can be calculated using the formula: Shrink = offset height x (multiplier for the specific angle).

3. Saddle: A saddle is a conduit configuration with either three or four bends. It is used to navigate over or under obstructions while maintaining a straight path.

4. Comparison: For both three- and four-bend saddles, the total shrink is twice that of an offset. This is because a saddle consists of two sets of bends (either two offsets or an offset and a U-bend) and requires additional conduit length to accommodate these extra bends.

In conclusion, the statement is true, as the total shrink for a three- and four-bend saddle is indeed twice that of an offset.

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Answer and Step-by-step explanation:

To calculate a confidence interval for a proportion:

1) Determine the proportion

\(p=\frac{308}{500}\)

p = 0.616

2) A 90% confidence interval has z-score that is 1.645.

3) Calculate margin of error

\(ME=\sqrt{\frac{p(1-p)}{n} }\)

where

n is the sample size

So

\(ME=\sqrt{\frac{0.616(1-0.616)}{500} }\)

\(ME=\sqrt{\frac{0.616(0.384)}{500} }\)

ME = 0.02175

Then the interval is given by

p ± z(ME)

0.62 ± 1.645(0.02175)

0.62 ± 0.035

The interval will be

0.585 < p < 0.655

What this means is that we are 90% confident that the true proportion of Katy Perry's Twitter female followers is between 0.585 and 0.655.

Answer:

100 per deposit

Step-by-step explanation:

Answer:

D

Step-by-step explanation:

She starts at fifty dollars after no deposit.

After one deposit, She has $150 in her accout

150-50=100

Therefore, D is correct.

Good luck!!

Because studies used in a meta-analysis have typically used different statistical tests, a statistic called effect size is used to put all the results into a common scale.

A meta-analysis is a statistical approach used to synthesize the results of several studies. It is a quantitative study of studies. In other words, it is a method that uses statistical analysis to incorporate the results of multiple clinical studies, which helps to obtain a more precise and reliable estimate of the impact of the intervention.

Effect size is used to combine all the results of the different studies into a common scale because each study might use a different statistical test that is not directly comparable to other studies.What is effect size?Effect size is a numerical value that describes the magnitude of the difference between two groups in a study. It allows researchers to compare the findings from different studies that might use different measurement instruments.

A large effect size implies a significant difference between the two groups in a study. Conversely, a small effect size indicates that there is no meaningful difference between the groups. Effect size is calculated as the standardized difference between the means of two groups divided by their standard deviation (Cohen’s d).

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Answer: when one of the variables is dichotomous; when you need to measure the relationship between a continuous variable and a dichotomous variable.

Step-by-step explanation:

Answer:

above is the solution to the question

Answer:

x = 11, ∠ B = 80°

Step-by-step explanation:

∠ A and ∠ B are corresponding angles and are congruent, thus

8x - 8 = 5x + 25 ( subtract 5x from both sides )

3x - 8 = 25 ( add 8 to both sides )

3x = 33 ( divide both sides by 3 )

x = 11

Thus

∠ B = 5x + 25 = 5(11) + 25 = 55 + 25 = 80°

The volume of the Illustrated cone used as an example is 51.3cm³.

Volume is a measurement of three-dimensional space that is occupied. It is frequently expressed numerically using SI-derived units, as well as different imperial or US-standard units. Volume and the definition of length are related.

A cone is a recognizable three-dimensional geometric shape with a flat and curved surface that is pointed upward. The formula for the volume of a cone is V=1/3hπr²

Let's say the radius is 7cm. The volume will be:

= 1/3 × 3.14 × 7²

= 51.3cm³

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Answer:

I'm pretty sure

dependent: total video games

independent: number of months

The expected return on the portfolio is 18% when the market moves by 6%.

The expected return on a portfolio of stocks when the market moves by 6% can be calculated using the following steps.

1: Calculate the weighted average expected return of the portfolio. In this case, since the portfolio is equally weighted in X, Y, and Z, the weighted average expected return is:

Weighted Average Expected Return = (1/3)*Expected Return X + (1/3)*Expected Return Y + (1/3)*Expected Return Z= (1/3)*10% + (1/3)*11.75% + (1/3)*15.25%= 12%

2: Calculate the expected excess return of the portfolio. The expected excess return is the difference between the weighted average expected return of the portfolio and the risk-free rate.

Expected Excess Return = Weighted Average Expected Return - Risk-free Rate = 12% - 3% = 9%

3: Calculate the expected market return. The expected market return is the product of the market's expected return and the portfolio's beta.

Expected Market Return = Market's Expected Return * Portfolio's Beta = 6% * 1 = 6%

4: Calculate the expected portfolio return using the Capital Asset Pricing Model (CAPM).

Expected Portfolio Return = Risk-free Rate + (Expected Market Return * Beta) + Expected Excess Return = 3% + (6% * 1) + 9%= 18%

Therefore, the expected return is 18%.

Note: The question is incomplete. The complete question probably is: Assume you buy a portfolio equally weighted in X, Y, Z. In other words, one third of your portfolio is in each stock. What is your expected return if the market moves by 6%?

Stock Expected Return Beta

X 10% 1

Y 11.75% 1.25

Z 15.25% 1,75

Risk free 3% 0

Market port 10% 1

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Therefore, it can be seen that the CIA profit/loss is $111,878.

Borrow $4 million in USD at the 4-month interest rate of 2.9%.

Convert the USD to CAD at the spot rate of 1.278 CAD/USD.

Invest the CAD in a 4-month Canadian deposit account at the 4.7% interest rate.

Sell the CAD forward at the 4-month forward rate of 1.2902 CAD/USD.

After 4 months, repay the USD loan and settle the forward contract.

The profit/loss from the CIA strategy is calculated as follows:

Profit/loss = (Interest earned on CAD deposit - Interest paid on USD loan) - (Forward rate - Spot rate)

In this case, the profit/loss is calculated as follows:

Profit/loss = (0.047 * 4,000,000 - 0.029 * 4,000,000) - (1.2902 - 1.278)

= $112,000 - $0.12

= $111,878

Therefore, the CIA profit/loss is $111,878.

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It is False that based only on the r and p values listed above you can come to the conclusion that age is a moderator of the bivariate relationship between the amount of texting and the number of accidents.

In the given scenario, it is not completely true that based only on the r and p values listed above, you can come to the conclusion that age is a moderator of the bivariate relationship between the amount of texting and the number of accidents.

Let's first understand what is meant by the term "moderator.

"Moderator: A moderator variable is a variable that changes the strength of a connection between two variables. If there is a statistically significant bivariate relationship between the amount of texting during driving and the number of accidents, scientists investigate whether this bivariate relationship is moderated by age.

Therefore, based on the values of r and p, it is difficult to determine if age is a moderator of the bivariate relationship between the amount of texting and the number of accidents.

As we have to analyze other factors also to determine whether the age is a moderator or not, such as the sample size, the effect size, and other aspects to draw a meaningful conclusion.

So, it is False that based only on the r and p values listed above you can come to the conclusion that age is a moderator of the bivariate relationship between the amount of texting and the number of accidents.

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Answer:

(a) k = 4 (b) y = -2x+9

Step-by-step explanation:

I know I solved it in reverse, but I hope you still be able to understand the way I solved.

If you have any questions about the way I solved it, don't hesitate to ask me in the comments below ;)

And if you find my answer helpful, please consider marking it Brainliest. Thnx

(9/11)÷(5/6)

= 9/11×6/5

= 54/55

Answer:

2

Step-by-step explanation:

1 + 1 = 2

I hope my answer helps you :)

Answer:

2 or Window

Step-by-step explanation:

1 + 1 = 2

OR

1 + 1 = WINDOW!

keeping in mind that a function does not have any X-Repeats, that is, the 1st coordinate in every pair never repeats, Check the picture below.

The statement "If x = -10, then x² = 100" is false. When we square -10, we get 100, so the correct statement would be "If x = -10, then x² = 100."

The statement that is NOT true is:

If x = -10, then x² = 100.

The other three statements are all true:

If x² = 100, then x = 10.This is true because the square root of 100 is ±10, and when we take the square root, we consider the positive square root, which is 10.

If x = 10, then x² = 100. This is also true because when we square 10, we get 100.The statement x² = 100 if and only if x = 10 or x = -10 is true.

This statement is based on the fact that the square root of 100 is ±10, so when we square either 10 or -10, we get 100.

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For 13 months the membership is done using the equivalent of two given monthly fees for community and workout gym.

Algebraic equations with equivalent solutions or roots are called equivalent equations. An analogous equation is one that is created by adding or removing the identical quantity or expression from both sides of a given equation. An equation is equivalent if both sides are multiplied or divided by the same non-zero value. By dividing both numbers by the same number, one can convert a division problem into an analogous problem while keeping the ratio between the two numbers constant. The equivalent is defined as something that is almost identical to or equal to another object. Two numbers that are equivalent are (2+2) and 4. These two things are equivalent since 2+2=4. equal to make equivalent.

Let x be the months

then community month= workout month

60+70x=190+60x

⇒70x-60x=190-60

⇒10x=130

⇒x=13 be the months be the working.

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Answer:

Step-by-step explanation:

The simaltaneous equation are:

● 3a + 2b = 6

● 3b - 2a = 10

Graph both equations

While graphing use x instead of a and y insread of b in the graphing tool

The solutions are the coordinates of the intetsection point between the two lines.

The intersection point coordinates are approximatively (-0.15,3.2) picture below

Wich means:

● x = a = -0.15

● y = b = 3.2

Step-by-step explanation:

3a+2b=6

3b-2a=10

3a+2b=6 multiply by 3

-2a+3b=10 multiply by 2

9a+6b=18

-4a+6b=20 (-)

13a= –2. divide b.s by 13

a= –2/13

3b-2a=10

3b-2(-2/13)=10

3b+4/13=10

3b=10-4/13

3b=126/13. divide b.s by 3

b=42/13

Answer:

Look down!

Step-by-step explanation:

1. 1/4*1/4*1/4

2. 1/4*1/2*1/2*1/4

The percentage for Utah is 9.0%.

The collection of data is gathered and chosen from a statistical population with the use of some prescribed techniques in both statistics and quantitative methodology. Data sets may be divided into two categories: sample and population.

All the components of the data set are included in the population, which also contains quantifiable qualities like mean and standard deviation.

A sample is made up of one or more observations that are taken from the population, and a statistic is what makes a sample quantifiable. The act of sampling is the selection of a sample from a population.

Thus, The percentage for Utah is 9.0%.

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Answer:

Here's what the graph will look like:

The probability an athlete plays golf or tennis but not both = 0.75  

The ratio of favorable outcomes to all possible outcomes of an event is known as probability.  

The formula to calculate the probability of an event is given by

Probability(E) = Favorable Outcomes/Total Outcomes  

Here we have 40 athletes,  

Number of athletes who plays both tennis and golf = 5

Number of athletes who plays tennis = 30

=> Number of athletes who plays only tennis = 30 - 5 = 25  

Number of athletes who plays golf = 10  

Number of athletes who plays only golf = 10 - 5 = 5

From the above calculations,

Number of athletes who plays tennis or golf but not both = 25 + 5 = 30

Probability that athletes play golf or tennis but not both = 30/40 = 0.75

Therefore,

The probability an athlete plays golf or tennis but not both = 0.75

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Step-by-step explanation:

you know what the slope of the line is ? it is the inclination of the line. how strongly is it going up or down, or is it maybe flat ?

in the formulas the slope is always the factor of x. the slope is excised as ratio of y coordinate change / x coordinate change when going from one point to another.

we see here 2 clear points in my opinion :

(0, -3) and (3, 0)

that is where the line crosses the y and the coordinate axis.

so, going from (0, -3) to (3, 0) :

x changes by +3 (from 0 to 3)

y changes by +3 (from -3 to 0).

so, the slope is

+3/+3 = 1

The angle is 25 degrees

Let the measure of the angle be x

So, we have

Complement = 90 - x

Supplement = 180 - x

The sum is 220

So, we have

90 - x + 180 - x= 220

Evaluate the sum

-2x + 270 = 220

Solve for x

x = 25

Hence, the angle is 25 degrees

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