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12345 [234]
2 years ago
12

I WILL GIVE BRAINLYEST

Mathematics
1 answer:
zalisa [80]2 years ago
5 0

Answer:

  • See below

Step-by-step explanation:

Given points P and Q have same x-coordinate but different y- coordinates.

The distance between P and Q is the difference of y- coordinates:

  • PQ = 4 - (-4) = 8 units = 8 cm

The area is 64 cm², it means the adjacent sides are

  • PS = QR = 64/8 = 8 cm

a)

If the points R and S are to the left, their coordinates are

  • S = (-1 - 8, 4- 0) = (- 9, 4)
  • R = (-1 - 8, - 4 - 0) = (- 9, -4)

b)

If the points R and S are to the right, their coordinates are

  • S = (-1 + 8, 4 + 0) = (7, 4)
  • R = (-1 + 8, - 4 + 0) = (7, -4)
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a. 15.866%

b. 2.275%

c. 34.134%

d. 81.860%

Step-by-step explanation:

In this question, we shall be using the formula for z-score a couple of times.

Mathematically;

z-score = (score - mean)/SD

where mean = 547 and SD = 100

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Mathematically;

z-score = (647-547)/100 = 100/100 = 1

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B. % of GMAT scores 747 or higher

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C. between 447 and 547

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For 547 = (547-547)/100 = 0/100 = 0

So the probability is;

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D. between 347 and 647

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So the probability is;

P(-2 < z < 1) = P(z < 1) - P(z < -2) = 0.84134 - 0.02275 = 0.81859 = 81.86%

7 0
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