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laila [671]
3 years ago
9

In a study of

Mathematics
1 answer:
o-na [289]3 years ago
5 0
We know that:
Mean = 82 mm and SD = 10 mm ( standard deviation )
82 - 3 * SD = 82 - 3 * 10 = 82 - 30 = 52 mm
82 + 3 * SD = 82 + 3 * 10 = 82 + 30 = 112 mm
Population between 52 and 112 mm is within +/- 3 standard deviations from the mean.
By the 66- 95 - 99.7 % rule it is: 99.7% of the test group.
0.977 * 500 = 498.5
Answer:
99.7 % of the test group have a diastolic pressure between 52 and 112 mm, or 498 men. 
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Maru [420]

Answer:

You want to solve for x, the first thing you need to do is distribute

The 2 through the x+4 then the other 2 through the -8-x

2(x+4)= 2x+8

2(-8-x)= -16-2x

2x+8=-16-2x-2x (combine like terms on the right side)

2x+8=-16-4x (now subtract 8 from each side)

2x=-24-4x (8-8=0, -16-8=-24) (now add 4x to each side)

6x=-24 (-4x+4x=0, 2x+4x=6x), (divide each side by 6)

x=-4 (6/6=1, -24/6=-4)

x=-4

Hope this helps ;)

6 0
3 years ago
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timofeeve [1]

Answer:

16 3/10

Step-by-step explanation:

Think about what fraction become .3 when put into a calculator

that's a 3 in the tenths place in the decimal system so the fraction would be 3/10. Then finally add on the 16

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6 0
2 years ago
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(AP Calc) the graph of the function f shown above has three line segments....
I am Lyosha [343]

Answer:

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Step-by-step explanation:

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Here [ a, b ] = [ - 1, 6 ] and from the graph

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7 0
3 years ago
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Solving for Mary's age, we get   m > 32 - j.  Because j = m + 2, m > 32 - (m+2).

Continue solving for m:  Adding m to both sides of this inequality results in

2m > 32 - 2.  Then 2m > 30, and m > 15.  Mary's age is greater than 15.

4 0
3 years ago
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frez [133]

Answer:

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Step-by-step explanation:

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