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Nadya [2.5K]
3 years ago
11

Suppose the scores on a history quiz are normally distributed with a mean of 73 and a standard deviation of 4. Which group descr

ibes 16% of the population of history quiz scores?
A. scores below 65


B. scores below 75


C. scores above 77


D. scores above 81
Mathematics
1 answer:
KiRa [710]3 years ago
8 0

B is the correct answer the score is below 75

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11x + 2y = 68 & 5x + y = 13
matrenka [14]

Answer:

i hope its correct

Step-by-step explanation:

11x + 2y=68 ------------1

5x+y=13 ------------2

y= 13-5x. ------------3

put 3 into 1

11x +2(13-5x) =68

11x +26 -10x =68

x=42

put x =42 into 2

5(42) +y =13

210+y=13

y=13-210

y=197

4 0
3 years ago
Plεαse solve thanks!!!!
Gwar [14]

Answer:

1/12

Step-by-step explanation:

1/6x

1/2

1/12

its lined up just in case

4 0
3 years ago
HELPPPP What is the range of g
dimulka [17.4K]

The range is how long the graph extends vertically. So, the lowest value is -9 (since the graph extends down until -9) and the highest value is 9 (since the graph extends up until 9). The lowest value goes in the first box and the highest value goes in the second box. The range is:

-9 ≤ <em>g</em>(<em>t </em>) ≤9


3 0
2 years ago
VERY IMPORTANT I NEED HELP!!!
Advocard [28]

Answer:

2√3

Step by step Explanation:

=  >  \frac{ \sqrt{96} }{ \sqrt{8} }  \\  \\  =  >  \frac{ \sqrt{12 \times 8} }{ \sqrt{8} }  \\  \\  =  >  \frac{ \sqrt{12} \times  \sqrt{8}  }{ \sqrt{8} }  \\  \\  =  >  \sqrt{12}  \\  \\  =  >  \sqrt{4 \times 3}  \\  \\  =  >  \sqrt{2 \times 2 \times 3}  \\  \\  =  > 2 \sqrt{3}

3 0
3 years ago
I NEED HELP LIKE ASAP, IF UR CORRECT I'LL MARK U BRAINLIEST.
Reil [10]

Answer:

D

Step-by-step explanation:

The initial value is the beginning output value, or the y-value when x = 0. Therefore, since y is at 7 when x is at 0, the answer is 7.

5 0
3 years ago
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