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3 years ago

F(x)=x^2 +10 Over which interval does f have a positive average rate of change?

Mathematics

2 answers:

EastWind [94]3 years ago

5 0

Answer:

No x-intercept/Zero

Step-by-step explanation:

Substitute f (x)=0

Solve the equation

There is no x-intercept/zero

Finger [1]3 years ago

4 0

Answer:

x > 0

Step-by-step explanation:

Rate of change is f'(x)

f'(x) = 2x

Positive when

2x > 0

x > 0

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Maksim231197 [3]

D because it’s three per year which is slope and started with five (y intercept)

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3 years ago

Which expression is equivalent to 7x , if b > 0?

AlladinOne [14]

<h3>Answer: Choice C</h3>

Work Shown:

$7x^2*\sqrt{2x^4}*6\sqrt{2x^{12}}\\\\7*6x^2*\sqrt{2x^4*2x^{12}}\\\\42x^2*\sqrt{4x^{4+12}}\\\\42x^2*\sqrt{4x^{16}}\\\\42x^2*\sqrt{(2x^8)^2}\\\\42x^2*(2x^8)\\\\42*2x^{2+8}\\\\84x^{10}\\\\$

So that's why the answer is choice C

The requirement that x is nonzero isn't technically necessary. The original expression simplifies to choice C even when x = 0 is the case. Also, we don't have issues such as division by zero errors that could arise. It's a bit curious why your teacher put in that condition.

6 0

3 years ago

Read 2 more answers

Data collected on the discharge of the Colorado River and speed are given in the table:

Julli [10]

Answer:

0.67; The least-squares regression line, given by ŷ = 3.95 + 0.67x, is not a good fit for the data.

Step-by-step explanation:

Plot the data in a spreadsheet and insert a trendline. The line of best fit is y = 0.67x + 3.95. The r² value is 0.67.

8 0

4 years ago

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The cylinder shown has a lateral surface area of about 750 square inches. Which answer is closest to the measure of the cylinder

Alchen [17]

Answer:

r ≈ 2.39 inches.

Step-by-step explanation:

I think your question is missed of key information of the height, allow me to add in and hope it will fit the original one.

<em>The cylinder shown has a lateral surface area of about 750 square inches. Which answer is closest to the measure of the cylinder's radius? Use 3.14 to approximate pi. the height being 50 inches.</em>

My answer:

Given that the lateral surface area of about 750 square inches and its height is 50 inches.

We have the formula ti find the surface area of the cylinder is:

S = h(2πr)

<=> 750 = 50*2*3.14*r

<=> r ≈ 2.39 inches.

Hope it will find you well.

3 0

4 years ago

Read 2 more answers

Select the equation that has t = 3.61 as a solution.

Bingel [31]

Answer:

A is the answer because

12.45 + t = 16.0

or, t=16.0-12.45

so, t=3.61

4 0

3 years ago