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aalyn [17]
3 years ago
7

What is y and how 5(y+2/5)=-13

Mathematics
1 answer:
IrinaK [193]3 years ago
8 0

Answer:

y=-3

Step-by-step explanation:

5(y+2/5)=-13

5y+10/5=-13

5y+2=-13

5y=-15

y=-3

Check:

5(-3+2/5)=-13

-15+2=-13

-13=-13

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zubka84 [21]
The area is perimeter times height plus area of the bases
6 0
3 years ago
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Given P(A)=0.78P(A)=0.78, P(B)=0.65P(B)=0.65 and P(A\cup B)=0.873P(A∪B)=0.873, find the value of P(A\cap B)P(A∩B), rounding to t
Sever21 [200]

Answer:

P(A\ n\ B) = 0.557

Step-by-step explanation:

Given

P(A) = 0.78

P(B) = 0.65

P(A\ u\ B) = 0.873

Required

Determine P(A\ n\ B)

From laws of probability, we have:

P(A\ n\ B) = P(A) + P(B) - P(A\ u\ B)

Substitute in values

P(A\ n\ B) = 0.78 + 0.65 - 0.873

P(A\ n\ B) = 0.557

Hence, P(A\ n\ B)<em> is calculated to be 0.557</em>

8 0
2 years ago
A local television station for a city with a population of 500,000 recently conducted a poll where they invited viewers to call
Scilla [17]

Answer:

b. Invalid, because the sample may not be representative of the population.

Step-by-step explanation:

A sample of around 10% of the population is needed to be representative.

In this question:

We have a population of 500,000, and a sample of 10,000.

10,000/500,000 = 1/50 = 0.02 = 2% of the population, so not representative, and option b is correct.

8 0
2 years ago
Please help me and I’ll give you brainiest!!!!!!!!! <br><br> Thank you:)!!!!!
sattari [20]
What you have written down is correct, x=-3
4 0
3 years ago
Evaluate the expression a +7 when a=4, b=2, and c=8
tatyana61 [14]

Answer:

a + 7

so "a" is 4 so

4+7=11

Hope this helps!

8 0
3 years ago
Read 2 more answers
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