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amm1812
3 years ago
9

Question 24 (1 point)

Mathematics
1 answer:
Yakvenalex [24]3 years ago
3 0

-6Answer:

Step-by-step explanation::)

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Scores on a statewide standardized test are normally distributed with a mean of 12.89 and a standard deviation of 1.95. Certific
Ulleksa [173]

Answer:

Marcus score is 13.7, the mean is 12.89, and the standard deviation is 1.95, so I’ll do ( 13.7 – 12.89)/ 1.95, Since Marcus' z-score is 0.415. The area to the left of the z-score is 65.9% so therefore Marcus did scored better than 65.9% of the students. So Marcus needs to score 98% better of all the other students in order for him to receive an actual certificate.

Step-by-step explanation:

4 0
3 years ago
Simplify this please 2 7/8 - 4 3/8
nalin [4]

Answer:

The answer is -1 1/2

Step-by-step explanation:

This problem doesn't have that much steps.

What you do is this.

Step 1: You have 2 7/8 and 4 3/8 now turn it into a improper faction it will look like this 23/8 -35/8

Step 2: Now minus 23/8 and 35/8 23-35= -12 and the 8's stay the same now it will look like this -12/8

Step 3: Now see how many times 8 can go into -12 so -8 times 1= -8 now get from -8 to -12 that equals 4 so it will look like this -1 4/8 that can be simplify by 4 because 4x1=4 And 4x2=8 Now your answer is -1 /12

4 0
4 years ago
A basketball team scored 78 points in a game. The players made 6 baskets worth 1 point each and 27 baskets worth 2 points each.
Nady [450]

Answer: They made 6 three point shots.

Step-by-step explanation:

Make your equation

(((6x1)+(27x2)+(3x)=78

Simplify

(6+54+3x=78)

60+3x=78

Subtract from both sides

3x=18

Divide from both sides

x=6

The basketball team scored 6 shots worth 3 points.

6 0
3 years ago
Subtract 2-3/4-1 1/10=​
umka21 [38]

Answer:

23/20        

Step by step Explanation

5 0
3 years ago
Read 2 more answers
Twelve less than a number is -3. find the number
weqwewe [10]

Answer:

9

Step-by-step explanation:

x-12= -3

x= -3+12

x=9

5 0
3 years ago
Read 2 more answers
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