A searchlight rotates through one complete revolution every 52 seconds how long does it take to rotate 90 degrees?

Time taken to rotate 90° is 13 seconds

Explanation:

Given:

To complete one revolution, the searchlight takes 52 seconds

One revolution = 360°

So,

360° is completed in 52 seconds

Time taken to complete 90° is

                                            = 13 sec

Therefore, time taken to rotate 90° is 13 seconds

hello from mrbilldoesmath!

answer:

a(n) - a(n-1) -3

discussion:

this ones a bit interesting. given a(n) = 5 - 3n consider this:

a(n-1) = 5 - 3(n-1)

          = (5 - 3n) + 3             => but a(n) = 5 - 3n, the first term

          = a(n)   + 3                 => subtract 3 from both sides

a(n-1) -3 = a(n)  

or

a(n) - a(n-1) -3

you,

mrb

b 1: 45 am

step-by-step explanation:

its that because if it was in the pm it would be 1345