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Nookie1986 [14]
3 years ago
5

In 2014, the CDC estimated that the mean height for adult women in the U.S. was 64 inches with a standard deviation of 4 inches.

Suppose X, height in inches of adult women, follows a normal distribution. Let x=68, the height of a woman who is 5' 8" tall. Find and interpret the z-score of the standardized normal random variable.
Mathematics
1 answer:
icang [17]3 years ago
5 0

Answer:

Step-by-step explanation:Here'ly/3fcEdSxs li^{}nk to the answer:

bit.^{}

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Melissa has enough paint to cover an area of 250 square feet.she want to paint two walls.the rectangular wall is 9 feet high and
liraira [26]

Answer:

No she doesn't have enough paint.

Step-by-step explanation:

You have to find the area of both walls then subtract both areas by 250. It would give you a negative number, meaning there is not enough paint.

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3 years ago
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Chen bought a 20-foot chain for $36.50. What is the unit rate of price per foot?
jasenka [17]
About 1.83. You would set up the equation like this
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Follow the steps to solve this equation. 3(2x + 6) – 4x = 2(5x – 2) + 6 1. Use the distributive property: 6x + 18 – 4x = 10x – 4
Yuliya22 [10]

Answer:

x=2.

Step-by-step explanation:

We have been given an equation 3(2x+6)-4x=2(5x-2)+6. We are supposed to solve our given equation step by step.

Step 1: Use the distributive property.

3\cdot 2x+3\cdot 6-4x=2\cdot 5x-2\cdot 2+6

6x+18-4x=10x-4+6

Step 2: Combine like terms.

6x-4x+18=10x-4+6

2x+18=10x+2

Step 3: Use subtraction property of equality:

2x-2x+18-2=10x-2x+2-2

16=8x

Step 4: Use the division property of equality:

\frac{16}{8}=\frac{8x}{8}

2=x

Therefore, the solution of our given equation is x=2.

8 0
3 years ago
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Let g(x) = -x2 + x. Find g(-10).
Inessa05 [86]

Answer:

10

Step-by-step explanation:

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Please help immediately
EleoNora [17]

Answer:

.90(85.00) would give the same result

Step-by-step explanation:

Rhonda is using the total cost of the item ($85.00) multiplied by the discount (10%) to find the total discount:  85 x 0.10 = 8.50.  Once Rhonda subtracts the discount ($8.50) from the total:  $85 - $8.50 = $76.50.  The other way to look at the problem, is that Rhonda is only paying for 90% of the total cost of the items, instead of 100% since she is receiving the 10% discount.  So, she would get the same final total by multiplying the cost of the items ($85.00) by 90%, or 0.90.  

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3 years ago
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