Answer:
11.7
Step-by-step explanation:
A^2+b^2=c^2
x^2+15^2=19^2
Answer:
B
Step-by-step explanation:
He asked me to make sure I had enough 20 words. But this question is really simple, Just move c to the right. And then change the symbol.
Bring like terms together
(REMEMBER CHANGE THE SIGN WHEN MOVING ACROSS THE EQUAL SIGN i.e. - becomes + and + becomes -)
4x - 2x = 7 - 3
2x = 4
divide both sides by 2
x = 2
Answer:
12m
Step-by-step explanation:
I'm pretty sure the 3rd one is right, use a calculator
