Answer: x= 80
Step-by-step explanation:
it’s an isoceles triangle so bottom 2 angles are 50
50+50= 100
180-100= x
b is decreased by 25% which means there will be (-ve) sign.
<h3>So,</h3>
- <em>Option 5 is correct!!~</em>
Answer:
6.4
Step-by-step explanation:
Should be 0,2,7,8 i dont think you could go any lower
9514 1404 393
Answer:
21.25 seconds
Step-by-step explanation:
In miles per second, the speed of the jet is ...
(720 mi/h)/(3600 s/h) = 1/5 mi/s
The speed of the sound is the same:
(1 mi)/(5 s) = 1/5 mi/s
Then the rate of closure between the airplane and the sound is ...
(1/5 mi/s) +(1/5 mi/s) = 2/5 mi/s
To find the time required to close a gap of 8 1/2 miles, we can use the relation ...
time = distance/speed
time = (8.5 mi)/(0.4 mi/s) = 21.25 s
The pilot will hear the thunder 21.25 seconds after the flash.
