Answer:
(-5/7)^17
Step-by-step explanation:
When multiplying numbers to a certain power, you will add the powers together. When dividing numbers to a certain power, you will subtract the powers.
Answer:
V_rectangular_box = width x height x length
V = V_big_one + V_small_one
= (1/3)x(1/4)x(5/8) + (1/6)x(1/4)x(1/4) = 1/16 (ft3)
First one :
We divide it into two rectangles (the top one has dimensions 2in*4in)
The area of the top rectangle is 2*4=8 in^2
The second rectangle has dimensions 3*(5-3)=6 in^2
Hence the total area is 8+6=14 square inches
Second one :
We divide it into a rectangle (dimensions 11*17) and a triangle on the top.
The area of the rectangle is 11*17=187 m^2
The rectangle has dimensions 17 (base's length) and 23-11 (height) hence its area is 17*(23-11)/2=102 m^2
Hence the total area is 102+187=289 square meters
Answer:
3.5 hours
Step-by-step explanation:
<u>Paul:</u>
- Speed = 90 km/h
- Time= T hours
- Distance = 90T km
<u>Mary:</u>
- Speed = 70 km/h
- Time = T + 1 hours
- Distance = 70(T+1) km
<u>Since the distance is same, we have:</u>
- 90T = 70(T+1)
- 90T= 70T + 70
- 90T - 70T = 70
- 20T= 70
- T= 70/20
- T= 3.5 hours
<u>Answer:</u> Paul's travel took 3.5 hours
Triangle b because it only has 3 sides