I NEED HELP WITH THESE TWO QUESTIONS PLEASE!!!!!!! I"LL GIVE THE BRAIN THINGY TOO!!!!
1 answer:
You might be interested in
Answer:
128
Step-by-step explanation:
If you have any questions about the way I solved it, don't hesitate to ask!!!
Answer:
600 m³
Step-by-step explanation:
Given:
- length of swimming pool = 30 m
- width of swimming pool = 10 m
- depth at deep end = 3 m
- depth at shallow end = 1 m
To find the volume of the water in the pool, find the area of a cross section (see attached image) and multiply it by the width of the pool.
<u>Area of cross section</u>
= area of rectangle - area of triangle
= (3 × 30) - [1/2 × 30 × (3 - 1)]
= 90 - 30
= 60 m²
<u>Volume of pool</u>
= area of cross section × width
= 60 × 10
= 600 m³
Answer: 2u+11i-3j
Step-by-step explanation: plug in -11i+3j for v
distribute negative sign
