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3 years ago

Hello please help me i need it

Mathematics

1 answer:

azamat3 years ago

8 0

Answer: 56

Step-by-step explanation: Area means multipilcation. You mulitply those numbers you get 56mi

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The function of f(x)=8√x gives the speed in feet per second (ft/s) of a free falling object after it has fallen x feet (ignoring

Juliette [100K]

Answer:

c. 55.4 ft/s

Step-by-step explanation:

Speed of the object is represented by the function:

$f(x)=8\sqrt{x}$

where x represents the number of feet the object has fallen. We have to find the speed of the object after it has fallen 48 feet. This means we have to find f(x) for x = 48. Substituting x = 48 in above equation we get:

$f(48)=8\sqrt{48}\\\\ =8\sqrt{16 \times 3}\\\\ =8\sqrt{4^{2} \times 3}\\\\ = 8 \times 4 \sqrt{3}\\\\ =32\sqrt{3}\\\\ = 32 \times 1.732\\\\ = 55.4$

Thus, rounded to nearest tenth, the speed of the object after it has fallen 48 feet would be 55.4 ft/s

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3 years ago

Which describes 4x and -7x in this

mart [117]

Answer:

B. Variable terms

Step-by-step explanation:

The 4 and -7 both have an x on them. The x is a variable.

7 0

3 years ago

Solve for x

andrew11 [14]

Answer:

Step-by-step explanation:

For example,

5×7-10>20

5(-3)-10<15

4 0

3 years ago

Marcel made an error when he used the distributive property to solve the problem shown. Which sentence describes the error?

Phoenix [80]

The answer to this is step 2 because they multiplied when they should of subtracted the 10 and the 12.

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4 years ago

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Please help me find the answer fast no jokes.

saw5 [17]

Answer:

I think the volume would be 490π in^3

Step-by-step explanation:

V = π7^2*10

π*49*10 = 490π

7 0

3 years ago

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