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3 years ago

Which expressions simplify to an irrational answer?

Mathematics

1 answer:

olga_2 [115]3 years ago

3 0

The answer is a s7 * a s5

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Use the normal distribution of SAT critical reading scores for which the mean is 502 and the standard deviation is 116. Assume t

PSYCHO15rus [73]

Answer:

(a) 93.19%

(b) 267.3

Step-by-step explanation:

The population mean and standard deviation are given as 502 and 116 respectively.

Consider, <em>X</em> be the random variable that shows the SAT critical reading score is normally distributed.

(a) The percent of the SAT verbal scores are less than 675 can be calculated as:

$P(X$

Thus, the required percentage is 93.19%

(b)

The number of SAT verbal scores that are expected to be greater than 575 can be calculated as:

$P(X>575)=P(\frac{x-502}{116}>\frac{575-502}{116}\\P(X>575)=P(Z>\frac{575-502}{116})\\P(X>575)=P(Z>0.6293)\\P(X>575)=0.2673$

So,

Out of 1000 randomly selected SAT verbal scores, 1000(0.2673) = 267.3 are expected to have greater than 575.

8 0

3 years ago

24 pointss helpssss..tysmmm

morpeh [17]

Answer:

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

A reciepe uses 1 1/4 cups of milk to make 10 servings. If the same amount of milk is used for each serving, how many servings ca

Gre4nikov [31]

Answer:

128 servings

Step-by-step explanation:

16 cups in a gallon

16/1.25 = 12.8

12.8 * 10 = 128

128 servings

4 0

4 years ago

What is the midpoint of the segment shown below?

12345 [234]

Since it is a horizontal line with both Y's at 3 ( second number inside each set of parenthesis) we know the mid point is (X, 3)

to find the midpoint of X add the 2 values and divide by 2:
-2 + 10 = 8
8 / 2 = 4
so the midpoint is (4,3), the answer is D

5 0

3 years ago

Please solve if so thank you

Advocard [28]

Answ#$%^&* Im just joking but is that the hole Question thank you

Step-by-step explanation:

6 0

3 years ago