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3 years ago

If the weight of 12 sheets of thick paper is 40 grams, how many sheets of the same paper would weigh 2500 grams

Mathematics

1 answer:

vekshin13 years ago

4 0

Answer:

750 is the answer..

Step-by-step explanation:

(12/40)*2500

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Here is a list of ages (years) of children in a room <br><br> 8,7,5,4,7,7,2<br><br> State the median

Lina20 [59]

Answer:7

Step-by-step explanation:

To find the median you need to first put the number in order from least to greatest this would be 2, 4 ,5, 7, 7, 7, 8

next you have to find the number in the middle

That is your median, 7 is your median.

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3 years ago

I need help answering all of these

Mashcka [7]

Answer:

A)-7

B)2

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D)-4

Step-by-step explanation:

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3 years ago

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12. Rileigh plays softball. She has 12 softball

Lelechka [254]

Answer:

3:10

Step-by-step explanation:

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2 years ago

A teenager who is 5 feet tall throws an object into the air. The quadratic function LaTeX: f\left(x\right)=-16x^2+64x+5f ( x ) =

tia_tia [17]

Answer:

At approximately x = 0.08 and x = 3.92.

Step-by-step explanation:

The height of the ball is modeled by the function:

$f(x)=-16x^2+64x+5$

Where f(x) is the height after x seconds.

We want to determine the time(s) when the ball is 10 feet in the air.

Therefore, we will set the function equal to 10 and solve for x:

$10=-16x^2+64x+5$

Subtracting 10 from both sides:

$-16x^2+64x-5=0$

For simplicity, divide both sides by -1:

$16x^2-64x+5=0$

We will use the quadratic formula. In this case a = 16, b = -64, and c = 5. Therefore:

$\displaystyle x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}$

Substitute:

$\displaystyle x=\frac{-(-64)\pm\sqrt{(-64)^2-4(16)(5)}}{2(16)}$

Evaluate:

$\displaystyle x=\frac{64\pm\sqrt{3776}}{32}$

Simplify the square root:

$\sqrt{3776}=\sqrt{64\cdot 59}=8\sqrt{59}$

Therefore:

$\displaystyle x=\frac{64\pm8\sqrt{59}}{32}$

Simplify:

$\displaystyle x=\frac{8\pm\sqrt{59}}{4}$

Approximate:

$\displaystyle x=\frac{8+\sqrt{59}}{4}\approx 3.92\text{ and } x=\frac{8-\sqrt{59}}{4}\approx0.08$

Therefore, the ball will reach a height of 10 feet at approximately x = 0.08 and x = 3.92.

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2 years ago

Evaluate if c = 2 and d = –3.

klio [65]

Answer:

B : -2

Step-by-step explanation:

$3(2) \div ( - 3) \\ 6 \div ( - 3) \\ - 2$

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3 years ago

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