Can someone please explain? How many times are an hour hand and a minute hand of a clock at right angles during their motion from 1.00 p. m. to 10.00 p. m.?
(Most of the people claim the answer is 18, but shouldn't it be 16? Iďk.)

Help will be much appreciated. ​

dd

step-by-step explanation:

dd

$5.41

step-by-step explanation:

$20 - $14.51 = $5.49.

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

fd

step-by-step explanation: