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djverab [1.8K]
3 years ago
13

Find f(-3) if f(x) = x^2.

Mathematics
1 answer:
Goryan [66]3 years ago
6 0

Answer:

f(-3)  = 9

Step-by-step explanation:

f(x) = x²

given x = (-3)

f(-3) = (-3)² = 9

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How do you solve this??
DIA [1.3K]
Perimeter:
add all sides
(1/2)+(1/2)+(1/2)+(1/2)+1+1 = 1+1+1+1 =4cm
4 0
3 years ago
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What is the perimeter of a square which has the same area as a circle with circumference of 4π?
enot [183]

Answer:

perimeter = 8\sqrt{\pi }

Step-by-step explanation:

We require to calculate the area (A) of the circle

A = πr² ← r is the radius

circumference = 4π = 2πr, hence

2πr = 4π ( divide both sides by 2π )

r = 2, hence

A = π × 4 = 4π

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s² = 4π ( take the square root of both sides )

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perimeter = 4 × 2\sqrt{\pi } = 8\sqrt{\pi }



8 0
3 years ago
brain and jake left their homes, which are 500 miles apart, and drove straight toward each other. it took 4 hours for the two to
Ket [755]

Let the speed of Brian = X

Brian drove at X miles per hour for 4 hours

Jake drove at X-15 for 4 hours

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4x + 4(x-15) = 500 miles

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Add 60 to both sides:

8x = 560

Divide both sides by 8:

X = 560/8

X = 70

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Jake's speed was x - 15 = 70-15  = 55 miles per hour.

5 0
3 years ago
What is the solution of -83=b/4
Gre4nikov [31]
I believe it is -332.
(-83= -332 ÷ 4)

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3 years ago
Which measures is equivalent to 126 in.?
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Answer is b my friend hope it helps if ya need me to explain I can for u:3
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