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3 years ago

If f(x) - 4x2 - 3 and g(x) = x+1, find (f- g)(x).

Mathematics

1 answer:

igomit [66]3 years ago

4 0

Answer:

Given f(x) = 2x + 3 and g(x) = –x2 + 5, find ( f o f )(x). ... Given h(x) = sqrt(4x + 1), determine two functions f (x) and g(x) which, when composed, generate h(x).

Step-by-step explanation:

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When performing a transformation on a set of data, how do you determine if the transformation is successful?

ira [324]

Answer:

If R² for the transformation is greater than R² for the original regression, the transformation is successful

Step-by-step explanation:

We will follow the process below when conducting a successful transformation on a set of data.

First of all, we will transform either the independent variable or the dependent variable, or even transform both. Secondly, we will conduct a regression analysis by making use of the transformed variables.

Thirdly, we will now compute the coefficient of determination (R2), which will be based on the transformed variables.

Lastly, If the transformed coefficient of determination(R²) is greater than the raw-score (R²) which is the original regression, then we can say that the transformation was successful.

3 0

3 years ago

X+1/2y=4<br> Solve the equation for Y

AysviL [449]

Answer:8/1

Step-by-step explanation:

Slope is defined as the change in y divided by the change in x. We note that for x=0, the value of y is 8.000 and for x=2.000, the value of y is 4.000. So, for a change of 2.000 in x (The change in x is sometimes referred to as "RUN") we get a change of 4.000 - 8.000 = -4.000 in y. (The change in y is sometimes referred to as "RISE" and the Slope is m = RISE / RUN)

4 0

3 years ago

Read 2 more answers

The following data was collected from a local high school and represents the number of points the women's basketball team scored

andrew-mc [135]

Answer:

The degrees of freedom are:

$df=n-1=10-1=9$

The confidence level is 0.95 or 95%, the significance would be $\alpha=0.05$ and $\alpha/2 =0.025$ , the critical value for this case would be $t_{\alpha/2}=2.262$

And replacing we got:

$54.7-2.262\frac{9.956}{\sqrt{10}}=47.58$

$54.7+2.262\frac{9.956}{\sqrt{10}}=61.82$

Step-by-step explanation:

Information given

In order to calculate the mean and the sample deviation we can use the following formulas:

$\bar X= \sum_{i=1}^n \frac{x_i}{n}$ (2)

$s=\sqrt{\frac{\sum_{i=1}^n (x_i-\bar X)}{n-1}}$ (3)

$\bar X= 54.7$ represent the sample mean

$\mu$ population mean

s=9.956 represent the sample standard deviation

n=10 represent the sample size

Confidence interval

The confidence interval for the mean is given by the following formula:

$\bar X \pm t_{\alpha/2}\frac{s}{\sqrt{n}}$ (1)

The degrees of freedom are:

$df=n-1=10-1=9$

The confidence level is 0.95 or 95%, the significance would be $\alpha=0.05$ and $\alpha/2 =0.025$ , the critical value for this case would be $t_{\alpha/2}=2.262$

And replacing we got:

$54.7-2.262\frac{9.956}{\sqrt{10}}=47.58$

$54.7+2.262\frac{9.956}{\sqrt{10}}=61.82$

3 0

3 years ago

I NEED HELP!!!!!! 4x+2x-5=7x-1

yan [13]

Let's solve your equation step-by-step.

4x+2x−5=7x−1

Step 1: Simplify both sides of the equation.

4x+2x−5=7x−1

4x+2x+−5=7x+−1

(4x+2x)+(−5)=7x−1(Combine Like Terms)

6x+−5=7x−1

6x−5=7x−1

Step 2: Subtract 7x from both sides.

6x−5−7x=7x−1−7x

−x−5=−1

Step 3: Add 5 to both sides.

−x−5+5=−1+5

−x=4

Step 4: Divide both sides by -1.

−x

−1

x=−4

Answer:

x=−4

i hope this helps you

3 0

3 years ago

Find the length of KU

Westkost [7]

Answer:

KU = 8

Step-by-step explanation:

From the diagram

KU + UN = KN , that is

KU + 40 = 48 ( subtract 40 from both sides )

KU = 8

8 0

3 years ago

Read 2 more answers