Shaver Manufacturing, Inc., offers dental insurance to its employees. A recent study bythe human resource director shows the annual cost per employee peryear followed the normal probability distribution, with a mean of$1,280 and a standard deviation of $420 per year. a. What fraction of the employees cost more than $1,500 per year fordental expenses?
b. Whatfraction of the employees cost between $1,500 and $2,000 peryear?
c. Estimate the percent that did not have any dental expense.
d. Whatwas the cost for the 10% of employees who incurred the highestdental expense?

56.6

step-by-step explanation:

the ratio of the perimeters is equal to the scale.

the ratio of the areas is equal to the square of the scale.

34 / 20 = k

a / 19.6 = k²

substituting:

a / 19.6 = (34 / 20)²

a = 19.6 (34 / 20)²

a ≈ 56.6

yes   because as the functions are graphed they eventually will intersect unless otherwise

step-by-step explanation:

answer: bea's uncle is 25 years old.

step-by-step explanation:

given the equation , we can say that the variable "x" represents the age of bea's uncle. then to find his age, we need to solve for "x":

we must add 15 to both sides of the equation:

now we need to divide both sides of the equation by 3:

therefore, we can conclude that bea's uncle is 25 years old.

central angle of a triangle has the same measure as its intercepted arc.

step-by-step explanation: