Answer:
A=1/2b×h
28.8=1/2b×7.2
28.8=3.6b/ ÷3.6
<em><u>b</u></em><em><u>=</u></em><em><u>8</u></em>
5.467 x 10^-8 (move 8 point to the right since power is negative)
= 0.00000005467
To find a speed in miles per hour, we need to divide a number of miles by a number of hours.
We are given 48 miles, so we already have a number of miles.
We are given the time as 1 hour and 12 minutes. We need to convert this time into hours.
1 hour + 12 minutes = 1 hour + 12/60 hour = 1.2 hours
speed = distance/time = 48 miles / 1.2 hours = 40 mph
Answer: The fourth choice, 40 mph.
Answer: The answer would be 73.6
Step-by-step explanation: We have to 32x2.3 to get 73.6.
Hope this helps!