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3 years ago

Given f(x) = x − 7 and g(x) = x2 Find f(g(4)). f(g(4)) =

1 answer:

4 0

Answer:

The value of the g(f(4)) is 9

Step-by-step explanation:

As given the expression in the question be as follow.

f(x) = x-7

g(x) = x^2

Now find g(f(4)).

first find f(4)

f(4) = 4-7

= -3

Thus

g(f(4)) = (-3)^2

As

(-3)^2 = 9

Therefore the value of g(f(4)) is 9

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If a person earned $32,000 a year and received $800 raise, what was the percent increase in her salary?

anygoal [31]

Answer:

Hey there!

This would be a 2.5% increase in salary.

Using the percent increase formula we find the answer to be a 2.5% increase.

Let me know if this helps :)

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4 years ago

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(y + 4 / 2y) + (y-2 / 3) = (3y^2 + 10 / 6y) for y<br>{-2, 1}<br>{-2, 3}<br>{}

vaieri [72.5K]

Answer:

{-2, 1}

Step-by-step explanation:

$\frac{y+4}{2y} +\frac{y-2}{3} =\frac{3y^2+10}{6y}$

Make the fractions have a common denominator.

$\frac{3}{3} (\frac{y+4}{2y}) +\frac{x}{y} (\frac{y-2}{3}) =\frac{3y^2+10}{6y}\\\frac{3y+12}{6y} +\frac{2y^2-4y}{6y} =\frac{3y^2+10}{6y}\\\frac{2y^2-y+12}{6y} =\frac{3y^2+10}{6y}$

Now that both sides of the equation have a common denominator, you can cancel out the denominators.

$2y^2-y+12=3y^2+10$

Now, set the equation equal to zero and factor.

$2y^2-y+12=3y^2+10\\-y^2-y+2=0\\(-y-2)(y-1)=0\\\\-y-2=0\\y=2\\\\y-1=0\\y=-1$

The y-values are {-2, 1}

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3 years ago

Which algebraic expressions are polynomials

kondaur [170]

Answer:

yep

Step-by-step explanation:

Polynomials are algebraic expressions that are created by combining numbers and variables using arithmetic operations such as addition, subtraction, multiplication, division, and exponentiation. You can create a polynomial by adding or subtracting terms.

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3 years ago

$1,200 is invested in an account earning 6.5% interest compounded annually. How much will there be in the account after 3 years?

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Just did the math, the answer is B

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3 years ago

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Apply the distributive property to rewrite 3(2-b).

oee [108]

Answer:

3·2 - 3·b = 6 - 3b

Step-by-step explanation:

You "distribute" the 3 over the 2 and the -b.

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3 years ago