2 years ago

Which of the following expressions is equivalent to 7y + 21 ?

Mathematics

1 answer:

Nikolay [14]2 years ago

8 0

Answer:

the answer is 7 ( y + 3) hope this helped

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She has read 1/5 of the book already what fraction of the book does she need to read now?

arlik [135]

Answer:

4/5

Step-by-step explanation:

1-1/5=4/5

she still has 4/5 to read

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3 years ago

Find f if f′(x)=2x−3/x^4, x>0 and f(1)=2.

slavikrds [6]

$f'(x)=2x-\dfrac3{x^4}$
$\displaystyle\int f'(x)\,\mathrm dx=\int\left(2x-\frac3{x^4}\right)\,\mathrm dx$
$f(x)=x^2+\dfrac1{x^3}+C$

Given that $f(1)=2$ , we get

$2=1^2+\dfrac1{1^3}+C$
$2=2+C$
$\implies C=2$

so that

$f(x)=x^2+\dfrac1{x^3}$

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3 years ago

Job a, $15/hour, job b, $12/hour, how many hours at each job to earn $360

stira [4]

Answer:

Job A, will take 24 hours and Job B, will take 30 hours

Step-by-step explanation:

12 X 30 = 360 and 15 X 24 = 360

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2 years ago

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For a taxi driver, which measures must be accurate? Check all that apply.

astra-53 [7]

Answer:

Them all as he has to know how far he travels the customer rate to see is there is an increase of decrease price of gasoline to see if it's affecting g his outcome and price per miles for obvious reasons haha

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3 years ago

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Simplify a x b x 8 please?????

Semmy [17]

Answer:

8ab

Step-by-step explanation:

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2 years ago