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AnnZ [28]
4 years ago
14

Amanda earned a score of 940 on a national achievement test that was normally distributed. The mean test score was 850 with a st

andard deviation of 100. What proportion of students had a higher score than Amanda? Use your z table
Mathematics
1 answer:
yawa3891 [41]4 years ago
3 0
The answer is 0.806 I believe. The whole process was far too much to type onto hear because I don't want you to be reading an essay if you're in a hurry.
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​Solve the absolute value equation. Check for extraneous solutions: |9x-3|=12
STatiana [176]

ANSWER: x=5/3, -1. Good luck. Hope this suffices.

Explanation for x=-1: |9x-3|=12. Lets take the absolute value brackets away for a sec. Add 3 to both sides 9x-3+3=-12+3, simplify: 9x=-9, divide both sides by nine:9x/9=-9/9. And that means that x=-1.

Explanation for x=5/3: |9x-3|=12. Add 3. 9x-3+3=12+3. Simplify: 9x=15. Divide both sides by 9. 9x/9=15/9. Simplify: x=5/3

5 0
3 years ago
Which measurements for the capacity of the ice cream carton?
nalin [4]

Answer:

  • 1 cup
  • 1 gallon

Step-by-step explanation:

In retail grocery stores in the US, you can find ice cream packaged in sizes of 1 cup (half pint), 1 pint, 1 quart, 1/2 gallon, 1 gallon, and perhaps some odd sizes in between. For commercial purposes, ice cream may be packaged in tubs of 3- or 5-gallons or more.

1 teaspoon would be an unusually small size, and 1 mL is about 1/5 of a teaspoon. These quantities are somewhat smaller than would be considered a "serving" of ice cream, so would generally be of little practical use.

6 0
3 years ago
A car travels 480 miles on 15 gallons of gasoline. How many miles does the car travel per gallon?
ElenaW [278]
You take 480 and divide it by 15, because it says per gallon. so then if the car goes 480 miles with 15 gallons, you have to figure out how to find per gallon. you divide 480/15 and your answer is 32
5 0
3 years ago
Read 2 more answers
Conditional Probability Assistance?
krek1111 [17]

Let the event A=\{ Sophomore \}, B=\{ Boy \}

The the probability of the events

P(A \cap B)=\frac{5}{12+18} =\frac{1}{6}

P( B)=\frac{12}{12+18} =\frac{2}{5}

The conditional probability

P(Sophomore|Boy)=P(A|B)=\frac{P(A \cap B)}{P(B)} =\frac{1/6}{2/5} =\frac{5}{12}

5 0
3 years ago
Use the image to answer the question. Use the drop-down menus to complete the statements. It isfor Acacia to pick a purple piece
I am Lyosha [343]

Answer:

1. less likely

2. more likely

Step-by-step explanation:

test took

3 0
3 years ago
Read 2 more answers
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