Y= square root of x+ 15

y = 8 and x = 7

Step-by-step explanation:

I cant explain but here is what I did :

Squares are basically the consecutive sum of odd numbers i.e. if you add consecutive odd numbers , you will pretty surely obtain a square number . And since 15 cant be the sum of any two odd numbers , x and y had to be consecutive numbers . So , I did a bit of math and found out that the difference of squares of any two consecutive numbers is the sum of those two consecutive numbers i.e. if x and y are two consecutive numbers , x^2 - y^2 = x + y

I solved for x and y and I obtained the answer

what

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