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Aleks04 [339]
3 years ago
8

I need help, this problem is screwing me over

Mathematics
1 answer:
VMariaS [17]3 years ago
4 0

Answer:

  C.  40.5 cm²

Step-by-step explanation:

Use the formula for the area of a trapezoid:

  A = (1/2)(b1 +b2)h

The bases are the parallel sides, 4.5 cm and 9 cm. The height is the perpendicular distance between them, 6 cm. Filling in these numbers, we have ...

  A = (1/2)(4.5 +9)(6) = 40.5 . . . cm²

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vampirchik [111]

Answer:

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Step-by-step explanation:

You need to divide 54 by 6

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3 years ago
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What is the rule? 100 cm 1 m, 250 cm ? M, 1500 cm ? M
kirza4 [7]
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3 years ago
What is the area of a circle with a radius of 43 cm? Use 3.14 for π and round your answer to the nearest hundredth.
amm1812
<span>I think your answer would be 270.04:)
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</span>
6 0
2 years ago
After careful testing and​ analysis, an oil company is considering drilling in two different sites. It is estimated that site A
Luda [366]

Answer:

Expected return for site A = $9.6 million

Expected return for site B = $12.4 million

according to the above results the company should choose SITE B because it has higher Expected return

Step-by-step explanation:

Given;

For site A,

Site A net if successful = $30 million

Success probability = 0.4

Site A loss if not successful= -$4 million

Probability of not successful = 0.6

For site B.

Site B net if successful = $60 million

Success probability = 0.3

Site B loss if not successful= -$8 million

Probability of not successful = 0.7

To estimate the expected return on an event with outcomes X1 and X2 with probabilities p1 and p2

E = X1(p1) + X2(p2)

Substituting for site A

E = 30(0.4) - 4(0.6)

E = $9.6 million

Substituting for site B

E = 60(0.3) - 8(0.7)

E = $12.4 million

Therefore, according to the above results the company should choose site B because it has higher Expected return

6 0
3 years ago
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