In a normal distribution, what percentage of the data falls within 3 standard deviations of the mean?

The product of a number and negative 3 increased by 8 is 20

The intersection of roads M and N creates a 41.4 angle. What are the complementary and supplementary angles of this intersection A. The complementary angle is 48.6 and the supplementary angle is 138.6 B. The complementary angle is 79.

Awesome Almonds wants to see if their new almond flavor is enjoyed more by high school or middle school students. They decide to visit one middle school and one high school in Houston, TX.

What is the value of x in the equation below? 4 (x + 3) = 9x + 16 + 3x

ohn lives 3/8 mile from the Museum of Science. Sylvia leaves 1/4 mile from the Museum of Science. How much closer is Sylvia from the museum?

A Ladder that is 32 ft long leans against a building. The angle of elevation of the ladder is 70. To the nearest tenth of a foot how high off the ground is the top of the ladder? A. 20.3 ft B. 10.9 ft C. 26.2 ft D. 39.1 ft

Given that |-6| > 5, which statement is not true? -6 is farther from 0 than 5 is on the number line -6 is greater than 5 5 > - 6 6 > 5

Mr. Thaxton has two daughters. The sum of their ages is twenty-one. The product of their ages is one hundred ten. How old is Mr. Thaxton's youngest daughter? A. 9 B. 10 C. 11 D. 12

Which rational expression is equivalent to 1 / (x+4) + 3 / (x-5)

Bingo uses the numbers 1 to 75. If you randomly select a number, What is the probability it will not be a multiple of 7? Express your answer as a fraction.