Answer:
Step-by-step explanation:
(9x-1)^-1/2 - (x+2)(9x-1)^-1/2
= (9x-1)^-1/2( 1 - (x + 2))
= (9x-1)^-1/2(-1 - x)
= -(x + 1)(9x-1)^-1/2
= -(x + 1) / (9x-1)^1/2
Answer:
x < -8
Step-by-step explanation:
-x - 10 > 14 + 2x
Subtract 2x from both sides;
-3x - 10 > 14
Add 10 to both sides;
-3x > 24
Divide both sides by -3
The sign switches when divide by a negative number.
x < -8
Answer:
22.4 cms.
Step-by-step explanation:
If 0.5 meters = 1 centimeter, 1 meter = 1/0.5 = 2 cms on the drawing.
So 11.2 meters = 11.2 *2 = 22.4 cms (answer).
Answer:
f(1)=16
Step-by-step explanation:
f(t)=-16t+32t
f(1)=-16(1)+32(1)
f(1)=-16+32
f(1)=16
Answer:
y = -4x - 11.
Step-by-step explanation:
Its slope = slope of y = -4x + 2, which is -4.
Using point-slope form of a straight line
y - y1 = m(x - x1)
y - (-3) = -4(x - (-2))
y + 3 = -4(x + 2)
y = -4x - 8 - 3
y = -4x - 11.
