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andriy [413]
3 years ago
12

What is the value of x in the equation 8x - 2y = 48, when y= 4?

Mathematics
1 answer:
kirill115 [55]3 years ago
8 0
X=5. I’m pretty sure this is the answer
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assume that women's heights are normally distributed with a mean of 63.6 inches and a standard deviation of 2.5 inches. find the
drek231 [11]

Answer:

65.3658 inches

Step-by-step explanation:

Let X be the height of a woman randomly choosen. We know tha X have a mean of 63.6 inches and a standard deviation of 2.5 inches. For an x value, the related z-score is given by z = (x-63.6)/2.5. We are looking for a value x_{0} such that P(X < x_{0}) = 0.76, but, 0.76 = P(X < x_{0}) = P((X-63.6)/2.5 < (x_{0}-63.6)/2.5) = P(Z < (x_{0}-63.6)/2.5), i.e., (x_{0}-63.6)/2.5 is the 76th percentile of the standard normal distribution. So, (x_{0}-63.6)/2.5 = 0.7063, x_{0} =63.6+(2.5)(0.7063) = 65.3658. Therefore, the height of a woman who is at the 76th percentile is 65.3658 inches.

7 0
3 years ago
Please show the steps I need this right now I’m taking a test8(x−4)&lt;7x−3
Olegator [25]

Answer:

x < 29

Step-by-step explanation:

8(x−4)<7x−3; distribute 8 in the parenthesis

8x - 32 < 7x - 3; subtract 7x from both sides

x - 32 < -3; add 32 to both sides

x < 29

5 0
3 years ago
Can someone help me with my math home work
SOVA2 [1]

Answer:

Yes, but please attach it.

Step-by-step explanation:

You haven't yet.

8 0
3 years ago
Can u plsss help if you d tysm!!
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2,2,and2 because there are 2 sides of a coin, 2 cards, and 2 marbles
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