Answer:
x = 2 for a, c, and f
Step-by-step explanation:
a)
6(2x - 1) = 4 + 7x
12x - 6 = 4 + 7x
5x = 10
x = 2
b)
10 - 3x = -2(x + 4)
10 - 3x = -2x - 8
18 = x
c)
-3(7 - 2x) = -1 - 4x
-21 + 6x = -1 - 4x
10x = 20
x = 2
d)
7x + 12 = 2(4x - 5)
7x + 12 = 8x - 10
22 = x
e)
-5(x + 1) = -4 - 7x
-5x - 5 = -4 - 7x
2x = 1
x = 1/2
f)
8x + 11 = 9(5 - x)
8x + 11 = 45 - 9x
17x = 45 - 11
17x = 34
x = 2
Answer:
3
Step-by-step explanation:
bc you can trust me
The distance of the rocket hitting the ground is 715.56 feet in 6.68 seconds
<u>Explanation:</u>
Given:
Height, h = 75 foot
Initial velocity, u = 107 foot/sec
Equation:
h = -16t² + 107t + 75
Substituting the equation:
75 = -16t² + 107t + 75
0 = -16t² + 107t
16t² = 107t
t = 6.6875s
We know:
Distance = speed X time
d = 107 f/s X 6.6875s
d = 715.56 foot
Therefore, the distance of the rocket hitting the ground is 715.56 feet in 6.68 seconds
Answer:
Step-by-step explanation:
Let
x------> the length of one leg of the triangle
we know that
In the right triangle of the figure
and remember that
so
