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3 years ago

A study was being conducted about how much college students spend on the purchase of their textbooks.

Mathematics

1 answer:

Mandarinka [93]3 years ago

5 0

Answer:

n=4

Step-by-step explanation:

because 4x10=40

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What is the fraction and decimal

vfiekz [6]

The fraction is 1/15 and the decimal is 1.15

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3 years ago

What is the answer to<br> f(x)=400(1/2)^4x

Vlad1618 [11]

Answer:

25x

Step-by-step explanation:

4 0

3 years ago

A rock is thrown up from the ground at a velocity of 84 feet per second. The formula h = -16t2 + 84t gives the rock's height in

kenny6666 [7]

Answer:

h = 110.24 m

Step-by-step explanation:

It is given that,

A rock is thrown up from the ground at a velocity of 84 feet per second. The formula $h = -16t^2 + 84t$ gives the rock's height in feet after t second.

We need to find the maximum height of the rock. For maximum height put $\dfrac{dh}{dt}=0$

So,

$\dfrac{d( -16t^2 + 84t)}{dt}=0\\\\-32t+84=0\\\\t=\dfrac{84}{32}\\\\t=2.62\ s$

Put t = 2.62 s in the equation of height. So,

$h = -16(2.62)^2 + 84(2.62)\\\\h=110.24\ m$

So, the maximum height of the rock is 110.24 m.

7 0

3 years ago

The sum of 3 times m and 4 times m

drek231 [11]

Answer:

7 meters

Step-by-step explanation:

(3*m) + (4*m)

7 meters

5 0

3 years ago

Read 2 more answers

(09.04 mc) a circle has its center at (−1, 2) and a radius of 3 units. what is the equation of the circle? (x − 1)2 + (y + 2)2 =

Reil [10]

General formula to make an equation of circle
(x - a)² + (y - b)² = r²

Given:
the center (a,b) = (-1,2)
the radius r = 3

Solution:
plug the numbers to the formula
(x - a)² + (y - b)² = r²
(x - (-1))² + (y - 2)² = 3²
(x + 1)² + (y - 2)² = 9
The answer is the last option

4 0

3 years ago

Read 2 more answers