Answer:
x = 
Step-by-step explanation:
In order to find the hypothenuse, you need to do 
. Which equals 164. Therefore, since 
, a=8, b=10, and c=.
Answer:
12
Step-by-step explanation:
A² + B² = C²
9² + B² = 15²
81 + B² = 225
B² = 144
B = 12
Answer:
x= -10
if u need explanation pls let me know
PEMDAS (order of operations rules) require that we perform operations in a certain order: anything inside parentheses first, followed by any exponentiation, followed by mult. and div., finally followed by addition and subtraction.
Thus, we must evaluate 5+8÷4-1 first, as it's inside parentheses. Focusing on the division first, we get 5+8÷4-1 = 5 + 2 - 1, or 6.
Then we have 5 - [6], which comes out to -1.
Multiply first, then add. 12 times 7 = 84. Then add 8. 84 + 8 = 92.
