Answer:
3 19/24
Step-by-step explanation:
hope it helps
Answer: i
Step-by-step explanation:
i2 = −1i3 = i2 x i = −1 x i = −ii4 = i2 x i2 = −1 x −1 = 1Hence, i233 =i4 x 58 + 1 = i232 x i1 = 1 x i = i
Answer:
190.4
Step-by-step explanation:
Solve the following system:
{2 y - 3 x - 8 = 3 y + 4 x - 1 | (AB=DE)
4 y + 10 x + 3 = -2 y - 17 x + 9 | (BC=EF)
x = -16/5, y = 77/5
DF=AC=-27x+5y+27=190.4
There you go, have a great day
Answer:
Step-by-step explanation:A car takes 4 hours to reach a destination travelling at the speed of 63 km/h.
Speed = distance / time
Distance = speed × time
Distance it took the car, travelling for 4 hours to a destination at a speed of 63 kilometers per hour would be
4 × 63 = 252 kilometers.
if the car travels at a different speed of 56 kilometers per hour and the distance remains 252 kilometers, the time it takes will be
Time = distance / speed
= 252/56 = 4.5 hours
The time varies inversely with the speed. The more the speed, the lesser the time and the lesser the speed, the more the time.
Let speed = s and let time = t
s varies inversely with t
Introducing constant of inverse variation k, it becomes
s = k/t
When s = 56, t = 4.5
56 = k/4.5
k = 4.5 × 56 =252
This is the distance
p
(
−
4
(
x
−
15
)
x
2
+
2
)
=
256
x
9
−
11520
x
8
+
172800
x
7
−
863424
x
6
−
17280
x
5
+
129600
x
4
−
768
x
3
+
11520
x
2
+
210