Ask question

Ask question

All categories

3 years ago

10

P( 4) = 13 and Q( 4) = 8, evaluate P( 4) Q(4).

1 answer:

mariarad [96]3 years ago

7 0

This is a common multiplication problem. Imagine P(4) as x, and Q(4) as y. You are plugging them into the equation x*y. Since x is equal to 13, and y is equal to 8, you are going to plug them into their corresponding variables and multiply. 13 * 8 = 104. The answer is 104.

You might be interested in

HELP!!<br><br> What is the area of this square, in square units?

rusak2 [61]

Answer:

Step-by-step explanation:

3x3

6 0

3 years ago

Read 2 more answers

Two competing headache remedies claim to give fast-acting relief. An experiment was performed to compare the mean lengths of tim

DaniilM [7]

Answer:

$t = 0.875$

Step-by-step explanation:

Given

<u>Brand A</u> <u>Brand B</u>

$n_ 1= 12$ $n_2 = 12$

$\bar x_1 = 21.8$ $\bar x_2 = 18.9$

$\sigma_1 = 8.7$ $\sigma_2 = 7.5$

Required

Determine the test statistic (t)

This is calculated as:

$t = \frac{\bar x_1 - \bar x_2}{s\sqrt{\frac{1}{n_1} + \frac{1}{n_2}}}$

Calculate s using:

$s = \sqrt{\frac{(n_1-1)*\sigma_1^2+(n_2-1)*\sigma_2^2}{n_1+n_2-2}}$

The equation becomes:

$s = \sqrt{\frac{(12-1)*8.7^2+(12-1)*7.5^2}{12+12-2}}$

$s = \sqrt{\frac{1451.34}{22}}$

$s = \sqrt{65.97}$

$s = 8.12$

So:

$t = \frac{\bar x_1 - \bar x_2}{s\sqrt{\frac{1}{n_1} + \frac{1}{n_2}}}$

$t = \frac{21.8 - 18.9}{8.12 * \sqrt{\frac{1}{12} + \frac{1}{12}}}$

$t = \frac{21.8 - 18.9}{8.12 * \sqrt{\frac{1}{6}}}$

$t = \frac{21.8 - 18.9}{8.12 * 0.408}}$

$t = \frac{2.9}{3.31296}}$

$t = 0.875$

3 0

3 years ago

Help mewa plzzzzzzzz

Sophie [7]

Answer:

It has the same shape and angels as a trapezoid therefor it is a trapezoid

Step-by-step explanation: If u dont believe me, look for a pic of a trapezoid on google

8 0

4 years ago

Read 2 more answers

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

hjlf

Answer:

330.60.330.60.330.60.

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

Is 16 divided by 3 a repeating decimal

Nady [450]

Answer:

Yes

Step-by-step explanation:

16 ÷ 3 = 5.333333...

3 0

3 years ago

Read 2 more answers