For a distribution with a mean of 80 and standard deviation of 10, at least what percentage of values will fall between 60 and 100?

What is the coefficient of the second term in the expression? 3a - 9b + 12c - 15d A) - B) b C) - 9 D) - 9b

Mario made six batches of cookies. His friends asked him to make an extra batch. He used 15 3/4 cups of sugar and needs another 5/8 cup for the extra batch. How many cups of sugar will Mario use altogether? Show work.

0-11-12. estimate to check if the given answer is reasonable. - 39 X 37=2183 Rounds to Reasonable Not Reasonable - 27 X 8 = 2241 Rounds to Reasonable Not Reasonable

Emily has 3 yellow, 8 green, 5 red, and 14 blue ankle bracelets in a bag. If Emily randomly selects an ankle bracelet out of the bag, what is the probability it will be green or blue? A.) 6/9 B.) 11/15 C.) 3/14 D.) 3/4

A projectile is fired directly upward. The compound inequality 89 - 9.8t 20.4 represents a projectile's velocity that is less than 10.6 m/s or greater than 20.4 m/s. Solve the compound inequality. The solution to the inequality 89 - 9.8t 20.4 is?.

A manufacturing operations consists of 12 operations. However, five of the 12 machining operations must be completed before any of the remaining operations can begin. Within each of these two sets, operations can be completed in any order.

2. Determine whether each of these sets is finite, countably infinite, or uncountable. For those that are countably infinite, exhibit a one-to-one correspondence between the set of positive integers and that set.

Evaluate: 2^-2 x (13x3) - 5^3

A boat travels for 4 hours at a constant speed of 35.25 km/h. How far does the boat travel? A. 105 km B. 120 km C. 141 km D. 352 km

What is the letter x in the expression 3x^2-4