A
The two equations are parallel. They have the same slope. You get two lines that never meet. The y intercept is -6 for the first one and + 6 for the second one.
B
Mutliply the second equation by 2
2(1/2y = -4x - 3)
y = -8x - 6
The two equations do not differ at all. There are an infinite number of solutions.
C
The slopes are different. One is plus 8 and the other is minus 8. These two equations will meet at exactly 1 point.
D
If you multiply the whole equation by - 1 you get the same thing as the first set of equations.
-1(-y = 8x +6)
y = -8x - 6
C<<<< Answer
Answer:
t=0.93 seconds or t=0.07 seconds
Step-by-step explanation:
If
The time when the projectile lands on the ground is when its height, h=0.
Using Factoring by Perfect Squares
Divide all through by the coefficient of
Next, divide the coefficient of t by 2, square it and add it to both sides.
Taking square roots of both sides
Therefore:
Answer:
Step-by-step explanation:
75+[(75*4)/100]=75+3=78
The answer is C, how it helped