SAT Middle School

if f(x)=2x+1 and g(x)=x^2+7, which of the following is equal to f(g(x))

Answers

Answer 1

Answer: [tex]2x^{2} +15[/tex]

Explanation:

so basically f(g(x)) is telling you to plug the entire g(x) equation into x in the f(x) equation so it will look like this

2([tex]x^{2} +7[/tex]) + 1

and then simplify

[tex]2x^{2} +14 + 1[/tex]

[tex]2x^{2} +15[/tex]

Answer 2

The value of f(g(x)) is 2x² + 15

Function:

f(x) = 2x + 1

g(x) = x² + 7

Therefore, we just have to replace the value of x in f(x) as x² + 7.

f(g(x)) = 2(x² + 7) + 1

f(g(x)) = 2x² + 14 + 1

f(g(x)) = 2x² + 15

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Related Questions

what is cross multiplication helpful is?

Answers

Cross Multiplication is helpful for when you are using fractions.

Example:
1 4
— x — = ?????
2 2

Sooooo, you must multiply 1 by 2 to get 2. Then, multiply 4 by to 2, to equal 8.
In mathematics, specifically in elementary arithmetic and elementary algebra, given an equation between two fractions or rational expressions, one can cross-multiply to simplify the equation or determine the value of a variable.

Friction is the _________ of one surface or object rubbing against another.

Resistance
Reversing
Reaction

Answers

Friction is the resistance to motion of one object moving relative to another. It is not a fundamental force, like gravity or electromagnetism. Instead, scientists believe it is the result of the electromagnetic attraction between charged particles in two touching surfaces.

Answer:................

Explanation:

oopsie it was a wrong answer

Which of these IS one aside Issac Newton’s Law of motion ?

Law of Relativity
Law of inertia
Law of probability

Answers

Answer:

Law of Inertia

Explanation:

The answer is the 2nd option

By _____, you will meet the TLSAE requirements. A. completing this lesson B. completing this course C. earning your learner's license D. earning your driver license

Answers

B. completing this course

By, B. completing this course you will meet the TLSAE requirements and it would be helpful in learning as well.

How lengthy is the Florida Tlsae direction?

The time taken would be 4 hours to complete the TLSAE Course (Traffic Law and Substance Abuse Education) is a Florida Department of Highway Safety and Motor Vehicles State authorized four hour software that each one Florida citizens have to whole in case you are a primary-time driver.

Traffic Law and Substance Abuse Education (TLSAE) is a four-hour on-line direction on Florida visitors' legal guidelines and the damaging outcomes of alcohol and illicit drugs. New drivers have to take TLSAE to earn their first driver's license, however, Florida courts also can order modern drivers to take the direction.

Read more about the TLSAE requirements:

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Tires are specifically designed with a grooved surface which is called a _____.

Thread
Tread
Scales

Answers

Answer:

Tread

Explanation:

Tread is the grooved surface of a tire that grips the road. When the road is wet, the tread allows water to flow through the grooves and away from the tire. This action allows the tire tread to cut through the water and grip the road.

The answer is
Tread, the outer grooved surface of a tire that grips the road.

There are three terms we use when speaking of vehicle balance, what are they called?


Pitch, Catch, and Close


Roll, Stop, and Go.


Pitch, Roll, and Yaw.

Answers

Answer:

Pitch, Roll, and Yaw

Explanation:

Answer

Pitch Roll and Yaw.
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