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icang [17]
2 years ago
6

If you and a friend get a job painting houses for a summer job. You can paint a room

Mathematics
2 answers:
stealth61 [152]2 years ago
8 0

Answer:

Scenario 1: Assume that you paint a room by yourself in four hours.

Then your friend would take eight hours.

Scenario 2: If it took both you and your friend 4 hours to paint a room, then that means that you would have taken approximately 1.3 hours and your friend approximately 2.6 hours to paint that specific room.

Mila [183]2 years ago
6 0

Answer:

8 hrs

Step-by-step explanation:

4*2=8 i think

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elena-s [515]

Answer:

9.847 %

Step-by-step explanation:

Be p1 the probability that the mammogram detect breast cancer in a woman.

p1=81%.

The probability 'P' that independent and consecutive 'n' singular events with p probability occur is:

P=p_{1} ^{n}

In this case:

P: Probability that breast cancer be detected on 11 women with breast cancer.

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7 0
3 years ago
The graph of the function f(x)=-(x+6)(x+2) is shown below. What statement about the function is true ?
arlik [135]

Answer:

A

Step-by-step explanation:

in x<-4 the derivative is positive so the function is increasing.

in x>-4 the derivative is negative so the function is decreasing

increasing in (-infinity,-4)

decreasing in (-4,infinity)

7 0
3 years ago
I need help. PLEASE, I dont know what to do​
spayn [35]

Answer:

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Step-by-step explanation:

5 0
2 years ago
a collector has 80 jackeys and 125 shirts she wants to maintain ratio in her collection but she needs to sell some of her items
Irina18 [472]

Answer:

25

Step-by-step explanation:

Well, we need to simplify this. we have a ratio of 80:125.

As these numbers end in either 0 or 5, we know they are divisible by 5.

By dividing these by five, our ratio becomes 16:25.

As we have 16 jackets, we know we must need to sell 25 jackets to maintain the ratio.

8 0
3 years ago
Simplify.<br><br>(7y)^2<br><br>Write your answer without parentheses.
kiruha [24]

Answer:

Step-by-step explanation:

(7y)² = 7²×y² = 49y²

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3 years ago
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