The table shows sets of ordered pairs that form a relation. does each set of ordered pairs represent a function? select function or not a function for each set of ordered pairs. set of ordered pairs function not a function {(1,−1,,−−3,2)} {(4,−1,,−−3,−2)} {(3,−1,−4,−−3,−2)} {(−3,,,−,−4)}

answer: .64

step-by-step explanation

set up the formula for standard deviation for this set of numbers, then simplify

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

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

step-by-step explanation: