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strojnjashka [21]
3 years ago
7

−9 /14 + 2/7 as a fraction in simplest form

Mathematics
1 answer:
horrorfan [7]3 years ago
6 0

Answer:

-5/14

Step-by-step explanation:

-9/14+2/7

-9/14+2/2(2/7)

-9/14+4/14

-5/14

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The average score on a standardized test is 500 points with a standard deviation of 50 points. What is the probability that a st
Charra [1.4K]
The average score is 500 points and the standard deviation is 50 points.Mean - 2 SD = 500 - 2 * 50 = 500 - 100 = 400It means that more than 400 on the standardized test is more than: Mean - 2 Standard deviations.For the Normal distribution: 100% - 2.5 % = 97.5% = 0.975.Answer: The probability that student scores more than 400 points is 0.975.  

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4 years ago
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Vesnalui [34]

Answer:

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6 0
2 years ago
Please help answer this question! Thanks
xz_007 [3.2K]

Answer:

limit does not exist

Step-by-step explanation:

well x is 1.5 so input 1.5 to everything

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8 0
3 years ago
1. 2x-y≤-6<br>2. 5x+4y ≥20<br>​
expeople1 [14]

Answer

2x-y <or =-6

2x<or=-6+y

divide both sides by 2

x<or=1/2y+3

5(1/2y+3)+4y>or=20

5/2y+15+4y>or=20

5/2y+4y>or=20-15

13/2y>or=5

divide both sides by 2/13

y>or=10/13

2x-10/13<or=-6

2x<or=-6+10/13

2x<or=-68/13

divide both sides by 2

x< or =-34/13

7 0
4 years ago
Please help!! What is the answer, I don't understand!!
FrozenT [24]

Your answer is A-18.2 Since BD and DC are congruent, we just add them together.

9.1+9.1=18.2

-Steel jelly


6 0
3 years ago
Read 2 more answers
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