Apaddle wheel on a boat is 4 feet in diameter. the fins along the outer edge travel at a speed of 1.3 feet per second. how long does it take the paddle wheel to complete 100 full revolutions? round to the nearest second.

Time taken to complete 100 revolutions will be 964 s

Step-by-step explanation:

Diameter of paddle wheel = 4 ft

So, circumference of wheel = C = π d

=> C = 4π

We know, the formula of speed s = d/t

where d is distance traveled and t is time taken.

We are given speed s= 1.3

Distance of wheel is equal to its circumference so, time taken will be:

s= d/t

=> t = d/s

=> t = 4π / 1.3

=> t = 3.07 * 3.14 s

=> t = 9.64 s

So, time taken to complete 100 revolutions will be:

9.64 * 100 = 964 s

Time taken to complete 100 revolutions will be 964 s

answer:  

step-by-step explanation:

here x represents the height of the pole,

and, the height of the shadow of the pole is 12 feet.

also, the angle of elevation from the top of the pole is 40°,

therefore,

by the low of sine,

which is the required equation for finding the value of x,

answer: i think it is (1,-2)