Question 1 (1 point)

when does the number 1113 equal 87 in our base 10 system?

4

Step-by-step explanation:

We are given a number 1113 to some base which equals 87to base 10

Let the base be equal to a

Then using place value for 1113 to base a we get

a should be a posiitve integer.

By trial and error we check a =1,2,3,4,5....

We find that when a=4

Hence base number is 4.

step-by-step explanation:

x^2 -12x + 36 + y^2 = 36

x^2 + y^2 = 12x

r^2 = 12rcos(theta)

r = 12 cos(theta)

320ft

step-by-step explanation:

120 divided by 3 equals 40

40 times 4=160

160 times 2=320