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marta [7]
2 years ago
6

If the heights of a population of men are approximately Normally distributed, and the middle 99.7% have heights between 5'0" and

7'0", what is the standard deviation of the heights of the population?
a. 1"

b. 12"

c. 6"

d. 4"

e. 3"
Mathematics
1 answer:
kirza4 [7]2 years ago
5 0

Answer:

4 inches

Step-by-step explanation:

the middle number is 6 and the distance from 99.7 from the middle is 3 standard deviations. 12/3 =4

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Almonds cost $3.49 per pound a bag of almonds cost $6.95 to the nearest whole pound about how many pounds of almonds are in the
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Answer:

The hint in this problem is the word "about" or approximately how many pounds. So we could find the solution by estimation through rounding off. We know that almonds cost about 3.50 per pound and a bag costs about $7.00. Dividing 7 by 3.50 per pound, will give us $7 ÷ $3.50 = 2 pounds.

The answer is 2 pounds.

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What is y−10=9(x+8)written in standard form
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y-10=9(x+8) in standard form is 9x −y =−82

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Televisions are on sale for 40% OFF the original price of $600. After tax (8.5%) is applied, what is the final price?​
FromTheMoon [43]

First, determine what is 40% of $600. Multiple 40 (as a decimal) by 600.

0.4 x 600 = 240

Therefore, the discount is $240 off $600.

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So the TV will cost $360 before tax.

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6 0
3 years ago
What is the completely factored form of f of x equals x3 - 2x2 - 5x + 6
GalinKa [24]

Answer:

The completely factorized form is: (x - 1)(x + 2 )(x - 3)

Step-by-step explanation:

To find the solution, we use Ruffini's rule:

                                              1     - 2     -5     + 6 

We first divide by (x-1): 1           1       -1     -6                           

                                      ________________________

                                             1       -1     -6       0

 

Then divide by (x + 2): - 2              -2   +6                        

                                      _______________________

                                              1        -3      0

Then, the rest of the division is: x - 3

Thus, the completely factorized form is: (x - 1) (x + 2 ) ( x - 3)

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3 years ago
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