3 years ago

I need help the question I don’t know the answer

Mathematics

1 answer:

denpristay [2]3 years ago

6 0

Answer: second option is correct which is 25/20

Step-by-step explanation:

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Given f(x)=4x+5 and g(x)= x^2+x; find (f∘g)(-5)<br> Please show all steps thank you

Greeley [361]

Answer:

$(f\circ g)(-5)=85$

Step-by-step explanation:

We are given:

$\displaystyle f(x)=4x+5\text{ and } g(x)=x^2+x$

And we want to find:

$(f\circ g)(-5)$

This is equivalent to:

$\displaystyle =f(g(-5))$

So, we will evaluate g(-5) first, which yields:

$\displaystyle g(-5)=(-5)^2+(-5)=25-5=20$

So:

$=f(g(-5))=f(20)$

Then:

$\displaystyle f(20)=4(20)+5=80+5=85$

Therefore:

$(f\circ g)(-5)=85$

6 0

3 years ago

The points (3,9) and (-3,-9) are plotted on the coordinate plane using the equation y= a•x. What is the value of a?

8_murik_8 [283]

A=3

The equation y=3x goes through both points

Hope I helped

5 0

3 years ago

Bert's bike shop has a $400 bicycle marked with a sign that says take a 35% discount what is the sale price

Inessa [10]

Answer:

$260

Step-by-step explanation:

Turn the percentage into a decimal.

35% -> 0.35

Multiply.

400 * 0.35 = 140

Subtract.

400 - 140 = $260

Best of Luck!

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3 years ago

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leva [86]

I know the 3rd question the answer is rectangle

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3. Damien paints 1/5 of a room in 5/12 hours what unit rate describes this situation

sdas [7]

Answer:

It takes 2 1/2 hours to paint each room.

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