Answer:
See below
Step-by-step explanation:
1) x = 4
2) x = 12
3) x = 45
4) x= 5.56
5) x = 35/18
6) x = 3/2
7) x = 19/3
8) x = 3/35
9) x = 47/5
10) x+4 = 17/2 so x = 9/2
<span>Let x equal the repeating decimal you are trying to convert to a fraction.Examine the repeating decimal to find the repeating digit(s)<span>Place the repeating digit(s) to the left of the decimal point.</span></span>
We are to find how long will it take to return to the ground?
Answer:
t = 0.48 sec
Step-by-step explanation:
We are given;
initial velocity; vi = 40 ft/s
hi = 70 ft
acceleration due to gravity; a = 32 ft/s²
Now, we are given that the rocket's height as a function of time is;
h = -12at² + vit + hi
At ground, h = 0
Plugging in the relevant values to obtain ;
0 = -12(32)t² + 40t + 70
-384t² + 40t + 70 = 0
The roots of the equation gives; t = 0.48 sec
Answer:
5mph
Step-by-step explanation:
Given that two cars are 40 miles apart at the beginning.
They started at the same time with speeds 48 mph and 56 mph respectively
Since both cars are travelling in the same direction,
Relative velocity = Speed of the behind car-Speed of the first car
=56-48 =8mph
To catch the I car, the second car has to travel a distance of 40 miles extra in the same time as the I car
i.e. speed to be made up by the second car = 40 miles
Relative velocity per hour = 8mph
Hence time taken to catch up =