Answer:
the second one 81^ 5/4
Step-by-step explanation:
Answer:
Option B. 
Step-by-step explanation:
we know that
The volume of the square pyramid is equal to
where
b is the length side of the square base
H is the height of the pyramid
we have
substitute
hello!
so the answer that you put there is actually wrong and i'll tell you why and how to do it
so since you are adding the two:
-8x + 9x = x (so you got this part right)
-12 + 4 = -8 (this is where you got it wrong, -12 added 4 goes up in value to -8)
so the final answer is x - 8
i hope this helped and have a nice day!
He swam 1,800 laps total in 12 weeks. Each week, he swam 150 laps because 1800/2=150 in 5 days. Each day, he swam 30 laps because 150/5=30, in 45 minutes. His average time was 30/45=2/3 At that rate, in one hour, he would swim 2/3*60 = 2/3 x 60 = 40 laps/hour Final answer is 40
Answer:
N= -7
Step-by-step explanation:
N+16=9
subtract 16 from both sides
N= -7
