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3 years ago

8

ASAP!! Please help me. I will not accept nonsense answers, but will mark as BRAINLIEST if you answer is correctly with solutions

.

1 answer:

Harrizon [31]3 years ago

6 0

Answer:

pretty sure its 5 since 5 is the hoghest exponent

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Working together to palms can drain a certain pool in three hours if it takes the older pump nine hours to drain the pool by its

andreyandreev [35.5K]

Answer:

It would take the newer pump 4.5 hours to drain the pool

Step-by-step explanation:

Let's investigate first what is the fraction of the job done in the unit of time (hour in this case) by each pump if the work individually:

older pump: if it takes it 9 hours to complete the job, it does $\frac{1}{9}$ of the job in one hour.

newer pump: we don't know how long it takes (this is our unknown) so we call it "x hours". Therefore, in the unit of time (in one hour) it would have completed $\frac{1}{x}$ of the total job.

both pumps together: since it takes both 3 hours to complete the job, in one hour they do $\frac{1}{3}$ of the job.

Now, we can write the following equation about fractions of the job done:

<em>The fraction of the job done by the older pump plus the fraction of the job done by the newer pump in one hour should total the fraction of the job done when they work together.</em> That is in mathematical terms:

$\frac{1}{9} +\frac{1}{x} =\frac{1}{3}$

and solving for x:

$\frac{1}{9} +\frac{1}{x} =\frac{1}{3} \\x+9=3x\\2x=9\\x=\frac{9}{2} \,\,hours\\x = 4.5\,\,hours$

4 0

3 years ago

((PLEASE ANSWER WITH A B C or D))

natali 33 [55]

Answer:

D. 60°

Step-by-step explanation:

The mnemonic SOH CAH TOA reminds you that the relationship of interest is ...

Sin = Opposite/Hypotenuse

sin(M) = ON/OM = 4(√3)/8 = (√3)/2

M = sin⁻¹((√3)/2) = 60°

8 0

2 years ago

Helppppp nowwwwwww plsss

kodGreya [7K]

Answer:

c!

Step-by-step explanation:

good luck! :)

5 0

2 years ago

Applicants for a job first submit a written application. Based on the written applications, 40% of the applicants are invited fo

Alex Ar [27]

Answer:

option b is correct answer

Step-by-step explanation:

probability=P(invited for interview)*P(rejected in 1st round)=0.40*0.58=0.232.

7 0

3 years ago

-4x to the power of 2 y × -3xy to the power of 3

denis23 [38]

- 4x^2y * 3xy^3

multiply the numbers : 4*3 = 12

-12x^2xy^3y

apply exponent rule : x^2x = x^2+1 = x^3

-12x^3y^3y

apply exponent rule again : y^3y = y^1+3 = y^4

answer : -12x^3y^4

5 0

3 years ago