A ladder that is 15 meters long is leaning against a wall. The top of the ladder is being pulled up the wall at a rate of 3 meters per second. If x is the distance between the bottom of the ladder and the wall, find the rate of change of this distance at x = 10 meters. Assume that the top of the ladder maintains contact with the wall throughout. A.
–2.72 m/s
B.
–3.354 m/s
C.
–4.56 m/s
D.
–5.75 m/s

example 2 – simplify: step 1: completely factor both the numerators and denominators of all fractions. step 2: change the division sign to a multiplication sign and flip (or reciprocate) the fraction after the division sign; essential you need to multiply by the reciprocal. step 3 : cancel or reduce the fractions.

$3,200 x 7.25% = $3,200 x .0725 = $232 interest monthly

$232 monthly x 12 annual = $2, 784

step-by-step explanation: