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3 years ago

6

The average score on the statistics final exam was 85 and the standard deviation was 2.5 . Chris scored a 95 . Chris scored high

er than what percent of his class?

1 answer:

Anna007 [38]3 years ago

7 0

Answer:

55%

Step-by-step explanation:

its honestly just a guess

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Natali [406]

Answer:

x = 3.7

Step-by-step explanation:

By applying sine ratio for the given angle B,

sin(39°) = $\frac{\text{Opposite side}}{\text{Hypotenuse}}$

sin(39°) = $\frac{AD}{AB}$

0.6293 = $\frac{AD}{7}$

AD = 4.41

By applying tangent ratio for the given angle C,

tan(50°) = $\frac{\text{Opposite side}}{\text{Adjacent side}}$

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1.19 = $\frac{4.41}{x}$

x = 3.7

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3 years ago

18,234.9+516.1 show your work

butalik [34]

Answer:

18,751

Step-by-step explanation:

18 234 . 9

516 . 1

----------------

18 751 . 0

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2 years ago

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jolli1 [7]

6 goodie bags. 6 is the greatest common factor of 54 and 36.

<span>9 tickets and 6 posters in each bag.</span>

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3 years ago

The ratio of girls to boys in a boarding school is 2:7,if there are 1251 student in the school, how many of the student are girl

Y_Kistochka [10]

278 students are girls in this case.

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Suppose y varies directly with x when x is 4, y is 32. What is y when x is -2

omeli [17]

Step-by-step explanation:

Since y varies directly with x,

y = kx, where k is a real constant.

When x = 4, y = 32.

=> (32) = (4)k, k = 8.

Therefore when x = -2,

y = kx = (8)(-2) = -16.

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3 years ago