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12345 [234]
3 years ago
6

Assume that in a statistics class the probability of receiving a grade of A equals .30 and the probability of receiving a grade

of B equals .30. The probability that a randomly selected student from this class will receive either an A or a B equals.
a. .09
b. .6
c. .9
d. .3
Mathematics
1 answer:
Tom [10]3 years ago
6 0

Answer:

Answer D is correct

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4 0
3 years ago
A rectangular bathroom mirror has a perimeter of 22 feet. Its area is 18 square feet. What are the dimensions of the mirror?
ad-work [718]

Answer:

The dimensions of the mirror is 9 feet and 2 feet

Step-by-step explanation:

Keep in mind that the area and perimeter of a rectangle is:

Area - length x width

Perimeter - 2 (l + w)

List the factors of 18 (the area of the mirror):

1, 2, 3, 6, 9, 18

POSSIBLE DIMENSIONS OF MIRROR:

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2 ft and 9 ft

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3 ft and 6 ft

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The rectangle with dimensions 2 feet and 9 feet corresponds with the area and perimeter of the mirror mentioned. So those are the correct dimensions.

Hope these helps!

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2 years ago
Which decimal is greater 0.9 or 0.90
GalinKa [24]
Theyre equal, adding the zero at the end does not change the value
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2 years ago
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