X/4 < = -3/2...multiply both sides by 4
x < = -3/2 * 4
x < = -12/2
x < = -6.......graph : 1 (because less then shades to the left....and an equal sign in the problem means the dot is solid)
7x/9 > - 14/3 ....multiply both sides by 9
7x > - 14/3 * 9
7x > -42...divide both sides by 7
x > -42/7
x > - 6......graph : 4 (because greater then shades to the right...and no equal sign means it is an open dot)
-75x/4 > 225/2...multiply both sides by 4
-75x > 225/2 * 4
-75x > 450...divide both sides by -75, and change the sign
x < -450/75
x < - 6.......graph : 2 (because less then is shaded to the left...and no equal sign means an open dot)
2x/3 > -16/3...multiply both sides by 3
2x > -16/3 * 3
2x > -16 ...divide both sides by 2
x > -16/2
x > -8......graph : 3 (because greater then shades to the right....and no equal sign means an open dot)
2, a whole number is equal to 200%
1/4, a fraction, is equal to 25%
200% + 25% = 225%
Answer:
y=1/2x-7
Step-by-step explanation:
-9=1/2(-4)+b
-9=-2+b
b=-7
y=1/2x-7
Answer: 0.33333333 which repeats
Answer:
Below in bold.
Step-by-step explanation:
(A). s = (1/3)t^3 - 3t^2 + 9t + 7
To find the velocity at time t we find the derivative:
V = ds/dt = 3*1/3 t^2 - 3*2t + 9
V = t^2 - 6t + 9,
Acceleration is found by finding the derivative of the velocity:
A = 2t - 6.
(B). Acceleration after 1 second = 2(1) - 8
= -6 ms^-2.
(C). When V = 0
acceleration = 0 ms^-1.