Answer:
Step-by-step explanation:
h=-5t²+135
when t=3 s
h=-5(3)²+135=-45+135=90 m
Answer:
54.56
Step-by-step explanation:
The number after the point is not 5 or higher
Answer:
Step-by-step explanation:
Area=πr²
area= π(12)²
area=452.4cm²
Answer:
Algebraic expressions are simplified by using given operators
like as arithmetic
But in algebraic expression there are terms
Answer:
Step-by-step explanation:
You could multiply all of equation A by 1/6 and all of equation b by -1/4 to get
A. x-3/2y=-1/3 and B. x+1/4y=/5/4, then subtract the equations from each other to solve