The radius of a car wheel is 14 inches. how many revolutions per minute is the wheel making when the car is traveling at 60 mph. round your answer to the nearest revolution?

Step-by-step explanation:

step 1

Find the circumference of the wheel

The circumference of a circle is equal to

we have

substitute

assume

step 2

we have that

The speed of the car is 60 miles/hour

Convert the speed to inches/minute

step 3

Remember that

The circumference of the wheel subtends one revolution

so

Convert the speed to rev/min

option a, c,d are correct.

step-by-step explanation:

from the given figure, it is given that z is equidistant from the sides of the triangle rst, then from triangle tzb and triangle szb, we have

tz=sz(given)

bz=zb(common)

therefore, by rhs rule,δtzb ≅δszb

by cpctc, sz≅tz

also, from δctz and δasz,

tz=sz(given)

∠tcz=∠saz(90°)

by rhs rule, δctz ≅ δasz, therefore by cpctc, ∠ctz≅∠asz

also,from δasz and δzsb,

zs=sz(common)

∠zbs=∠saz=90°

by rhs rule, δasz ≅δzsb, therefore, by cpctc, ∠asz≅∠zsb

hence, option a, c,d are correct.

step-by-step explanation: