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BabaBlast [244]
3 years ago
8

Percentage grade averages were taken across all disciplines at a particular university, and the mean average was found to be 83.

6 and the standard deviation was 8.7. If 18 classes were selected at random, find the probability that the class average is less than 80.
A. 0.7427



B. 0.0396



C. 0.0235



D. 0.1730
Mathematics
1 answer:
Eduardwww [97]3 years ago
4 0
The answer is d 0.1730

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On a coordinate plane, which point lies on the y-axis? A) (6, 6) B) (0, 6) C) (6, 0) D) (6, 6)
bezimeni [28]

Answer:

<h2>B) (0, 6)</h2>

Step-by-step explanation:

If the point lies on the y-axis then the first coordinate of the point is equal 0.

(0, y) - y is any real number.

5 0
2 years ago
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Please help I just need to finish these questions
Olin [163]

Answer:

C

Step-by-step explanation:

Not integer, irrational

4 0
3 years ago
!!25 POINTS AND BRAINLIEST!! A recipe calls for 2 cups of pizza sauce. I only want 3/4 OF the full 2 cups. How will I figure out
Nutka1998 [239]

Mathematical Answer: 2cups*3/4 = 1 and 1/2 cups or 1.5 cups.

How to do it while cooking:

  1. Get out a container large enough to hold at least 4 cups sauce
  2. Get out a "1 cup" and "1/2 cup" measuring cup.
  3. Measure out 1 cup of sauce with the "1 cup" measuring cup.
  4. Measure out  1/2 of a cup of sauce with the '1/2 cup' measuring cup.
  5. pour both cups into the larger container.

And there you go you have 3/4 of 2 cups of sauce.

<em>Hoped this helped!</em>

5 0
3 years ago
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This question is WORTH 15 POINTS
masha68 [24]
3x² - 33x - 180 = 0
3(x² - 11x - 60) = 0
3(x² - 15x + 4x - 60) = 0
3(x + 4)(x - 15) = 0
3(x - 4) = 0 or x - 15 = 0
3x - 12 = 0     <u>  + 15  + 15</u>
<u>    + 12 + 12</u>           x = 15
       <u>3x</u> = <u>12</u>
        3      4
         x = 3

The answer is equal to H.15 and E. 4.
8 0
3 years ago
What’s this answer ????
slega [8]
Divide by 6 on both sides to have the variable by itself. the answer is 8.
4 0
3 years ago
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