If an arrow is shot upward on mars with a speed of 54 m/s, its height in meters t seconds later is given by y = 54t − 1.86t^2. (round your answers to two decimal places.) (a) find the average speed over the given time intervals. (b) estimate the speed when t = 1.

y -5 = (-1/4)(x + 8)

step-by-step explanation:

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

hm let me think hm think think hm think yes

236 cm 16 time 12 = 192

6 times 7 = 42

192+42