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grigory [225]
3 years ago
6

Factor the following.

Mathematics
2 answers:
Mnenie [13.5K]3 years ago
5 0

Answer: x=2

Step-by-step explanation:

Jobisdone [24]3 years ago
4 0
Doing it for the bag
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3 years ago
Scores of an IQ test have a bell-shaped distribution with a mean of 100 and a standard deviation of 12. Use the empirical rule t
MissTica

Answer:

A) 99.7% of people have an IQ between 64 and 136.

B) 5% of people have an IQ score less than 76 or greater than 124.

C) 16% of people have an IQ score greater than 112.

Step-by-step explanation:

The Empirical Rule tells us that, in a normal or 'bell-shaped' distribution, 68% of the data is one standard deviation from the mean, 95% of the data is two standard deviations from the mean, and 99.7% of the data is three standard deviations from the mean.

A) 64 and 136 are 3 standard deviations away from the mean, so 99.7% of people have an IQ between 64 and 136.

B) 76 and 124 are 2 standard devations away from the mean, but the answer is asking what percentage is not between them. 100% - 95% gives us 5%.

C) 112 is one standard deviation away from the mean. If we want to find the percentage greater, then we can do 100% - 50% (as 112 is to the left of the mean), then we can take half of 68 to get 34%, and after subtracting 50% and 34% from the 100%, we get 16%.

8 0
3 years ago
3 groups of a number plus 2
nikklg [1K]
X times x times x +2
4 0
2 years ago
Orly uses 2 cups of raisins for every 12 cups of trail mix she makes. How many cups of trail mix will she make if she uses 8 cup
alexgriva [62]

Answer:

48

Step-by-step explanation:

8 divided by 2 = 4

4 times 12 = 48

5 0
3 years ago
What is the area of a trapezoid with bases of 15.8 yd and 21.8 yd and a height of 11.7 yd?
DedPeter [7]

Add the bases together, divide that by 2 then multiply by the height.

15.8 + 21.8 = 37.6

37.6/2 = 18.8

18.8 x 11.7 = 219.96 yd^2

3 0
3 years ago
Read 2 more answers
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