Answer:
0
Step-by-step explanation:
21(3) +2(7) - 11(7) because the absolute value of -11 is 11
63+14-77
=0
to simplify it, we need to combine like terms. 8 and 15 are like, and 5x and 2x are like. so we rearrange it: 8+15-5x-2x
and now we simplify: 23-7x
I think it’s 840 cubic inches.
So to find average speed, add the distance and divide it by the total time. So the total feet is 704+328=1032 feet in 8+4=12 seconds. So to find the average speed, then the average speed is 1032/12=86 feet per second
Answer: 23/18
Step-by-step explanation:
