3 years ago

) 8(-5d - 4z) use z = 7 and d = 8 WHAT IS THE ANSWER

Mathematics

1 answer:

Nitella [24]3 years ago

6 0

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Find the critical numbers of the function. (Enter your answers as a comma-separated list. Use n to denote any arbitrary integer

lyudmila [28]

$f(\theta)=10\cos\theta+5\sin^2\theta$

then the derivative is

$f'(\theta)=-10\sin\theta+10\sin\theta\cos\theta$

Critical points occur where $f'(\theta)=0$ . This happens for

$-10\sin\theta+10\sin\theta\cos\theta=0$

$-10\sin\theta(1-\cos\theta)=0$

$\implies-10\sin\theta=0\text{ or }1-\cos\theta=0$

In the first case, we find

$-10\sin\theta=0\implies\sin\theta=0\implies\theta=n\pi$

In the second,

$1-\cos\theta=0\implies\cos\theta=1\implies\theta=2n\pi$

So all the critical points occur at multiples of $\pi$ , or $n\pi$ . (This includes all the even multiples of $\pi$ .)

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3 years ago

During a period of extreme cold, the average daily temperature dropped decreased by 1. Feach day. How many days did it take for

PtichkaEL [24]

Answer:

The answer is 9 days

Step-by-step explanation:

First, we realise

-1.F = 1 day

-9.F = 9 days

The -1.F times 9 gives us one so the days times 9 as well.

Answer = 9

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3 years ago

Find the area of the irregular figure.

max2010maxim [7]

Your answer should be 314

4 x 16=64

10 x 25 (25 is the height)=250

64 + 250=314

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3 years ago

What are the coordinates of the x and y intercepts of the equation 3x+2x=12

Angelina_Jolie [31]

3(2)+2(3)=12 <<<< is the answer! :)

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3 years ago

The GCF of 18 and 30 is ____.

hammer [34]

The GCF of 18 and 30 is 6

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3 years ago

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