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3 years ago

For f(x)=2x+1 and g(x)=x^2-7 find (f•g)(x)

Mathematics

1 answer:

skad [1K]3 years ago

8 0

(f•g)(x) = (2x+1) (x^2-7)
(f•g)(x) = 2x^3 + x^2- 14x - 7

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Two fair six-sided dice are rolled.

sladkih [1.3K]

1/36+1/36=2/36. why? because their are 6 sides. you must multiply. and for each dice ylu have a possibilty of 1/36.

5 0

3 years ago

How do make number lines

devlian [24]

Answer:

Select the plain line in the Insert Shapes group. Place your cursor where you want a tick mark on your line, hold the "Shift" key, and drag to create a vertical mark. Holding the Shift key ensures a straight line.

Step-by-step explanation:

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3 years ago

Solve for x A) 42 B) 40 C) 45 D) 38

alexgriva [62]

Answer:

x = 40

Step-by-step explanation:

Using similarity theorem, we have the following:

$\frac{24}{24 - 15} = \frac{x}{x - 25}$

Solve for x

$\frac{24}{9} = \frac{x}{x - 25}$

Cross multiply

$24(x - 25) = x(9)$

$24x - 600 = 9x$

Subtract 24x from each side

$- 600 = 9x - 24x$

$- 600 = -15x$

Divide both sides by -15

40 = x

x = 40

3 0

3 years ago

8n+12+(−9)−(−6n) = please help

patriot [66]

Answer:

14n+3

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

A yearbook company was investigating whether there is a significant difference between two states in the percents of high school

Keith_Richards [23]

Answer: D. two-sample z-test for a difference in population proportions

Step-by-step explanation:

The options for the given questions were missing. The options are as follows:

A one-sample z-test for a sample proportion

B one-sample z-test for a population proportion

C two-sample z-test for a difference in sample proportions

D two-sample z-test for a difference in population proportions

Solution:

Sample proportions are used to estimate population proportions.

We are given the sample proportion of students from one state who ordered a yearbook = 70/150

We are also given the sample proportion of students from the other state who ordered a yearbook = 65/100

Since there are 2 samples and we want to investigate if there is a difference between 2 population of students,

Therefore, the most appropriate method for analyzing the results is

D. two-sample z-test for a difference in population proportions

8 0

3 years ago