Which of the following statements are true regarding functions? Check all that apply.

a.) the horizontal line test may be used to determine whether a function is one-to-one.

b.) a function is a relation in which multiple values of the input variable are paired with at least one of the output variable.

c.) a sequence is a function whose domain is the set of rational numbers.

d.) the vertical line test may be used to determine whether a relation is a function.

3 is greater then both of those numbers

the simplified form is

step-by-step explanation:

we want to simplify the expression,

let us change the middle bar to a normal division sign to obtain,

we multiply the first fraction by the reciprocal of the second fraction to obtain,

we factor to obtain,

we cancel the common factors to get,

we simplify to get,

the correct answer is b

answer:   28.56 feet (approx)

step-by-step explanation:

since, triangle abc has measure of angle c equal to 55 degrees, measure of angle abc equal to 90 degrees, and length of bc equal to 20 feet.

we have to find out the measurement of segment ab.

therefore, tan 55° =

but bc = 20 feet.

⇒ tan 55 ° =  

⇒ ab = 20 × tan 55 °

⇒ ab = 20 × 1.42814800674

⇒ ab = 28.5629601348   ≈ 28.56 feet

step-by-step explanation: