A^2 + b^2 = c^2
9^2 + b^2 = 15^2
81 + b^2 = 225
225 - 81 = b^2
144 = b^2
square root of 144 = 12
b = 12
Step-by-step explanation:
2×-5=-8 and 2×-5/8=-1.25
Answer:
positive + positive is negative
negative+ positive = negative ii think
Step-by-step explanation:
If I'm not mistaken, this is cross multiplying.
The first one is 2/2 = 6/10
You will multiply 2x10= 20
Multiply 6x X= 6x
You will divide 6 into 20.
20 / 6 = 3.33333
Second:
8/x =4/11
Multiply 8 x 11= 88
Multiply 4 x X = 4x
Divide 88/4
88/4=22
