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3 years ago

5+r−2=9 what is da value of R?

Mathematics

1 answer:

Basile [38]3 years ago

5 0

Answer:

r=9-5+2

r=6

Step-by-step explanation:

this is the correct answer

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What is 2 and negative three using integers

Darina [25.2K]

If you mean "how to write the sum", the answer is

$2+(-3)$

The result of this sum is $-1$ , because you start from 2 on the number line and take 3 steps to the left (negative integers mean going left, positive integers mean going right)

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3 years ago

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

Deshaun's gas tank is 1/3 full. After he buys 3 gallons of gas, it is 1/2 full. How many gallons can Deshaun's tank hold?

rusak2 [61]

Answer:7 gallons

Step-by-step explanation:

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3 years ago

Damon, Dave & Dina share some money in

scoray [572]

Answer:

6/18

Step-by-step explanation:

Total amount of money that they have:

5 + 7 + 6 = 18

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3 years ago

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Five more than twice a number is 17.

strojnjashka [21]

Answer:

The answer you are looking for is 6

Step-by-step explanation:

6x2=12 12+5=17

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3 years ago

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