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3 years ago

5

This year Hong watched 80 movies. He thought that 28 of them were very good. Of the movies he watched, what percentage did he ra

te as very good?

1 answer:

miv72 [106K]3 years ago

4 0

35% I’m pretty sure

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Find the quotient. Simplify your answer.

brilliants [131]

Let's see

$\\ \rm\Rrightarrow \dfrac{s+1}{s^2+1}\div \dfrac{s^2}{6s^2}$

$\\ \rm\Rrightarrow \dfrac{s+1}{s(s+1)}\div\dfrac{1}{5s^2}$

$\\ \rm\Rrightarrow \dfrac{1}{s}\times{5s^2}$

$\\ \rm\Rrightarrow \dfrac{5s^2}{s}$

$\\ \rm\Rrightarrow 5s$

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2 years ago

PLZ HELP I'M SO CONFUSED AND THIS IS TIMED

alexandr402 [8]

<u>Value of</u><u> </u><u>x</u><u> </u><u>is</u><u> </u><u>3</u><u>0</u><u>°</u>

Answer:

Solution given:

x°+(5x)°=180°[being straight line which sum of angle is 180°]

adding like terms

(6x)°=180°

dividing both side by 6

(6x)°/6=180°/6

x=30°

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2 years ago

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Consider the surface z = x 2+4y 2+1. Suppose you are walking on this surface directly above a curve C in the xy-plane, where the

Bess [88]

With $x(t)=\cos t$ and $y(t)=\sin t$ , we have

$z(t)=x(t)^2+4y(t)^2+1$

$z(t)=\cos^2t+4\sin^2t+1$

$z(t)=3\sin^2t+2$

Then $z(t)$ has critical points where

$\dfrac{\mathrm dz}{\mathrm dt}=6\sin t\cos t=3\sin2t=0$

$\implies\sin2t=0\implies2t=n\pi\implies t=\dfrac{n\pi}2$

where $n$ is any integer.

$z(t)$ is increasing wherever $\sin2t>0$ , which happens for

$\dfrac{2n\pi}2$

$\boxed{n\pi$

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3 years ago

At the beginning of year 1 Lisa invests $500 at an annual compound interest rate of 3% she makes no deposits to or withdrawals f

Alenkinab [10]

6((500*.03)+500) this is the answer, I think.

7 0

3 years ago

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Which expression represents the distance between 1.8 and 9.4 on the number line?

zhuklara [117]

Answer:

|9.4-1.8|

Step-by-step explanation:

To find distance, you take the largest value minus the smallest value and then take the absolute value of that because distance can't be negative.

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3 years ago