Answer:2(xy-7)= -20
Step-by-step explanation:
Plug in -1 for x and 3 for 3, as the question says that x and y represent those values.
2(xy-7) = ?
2((-1)(3) - 7) = ?
2(-3-7)=?
2(-10)
-20
2(xy - 7) = -20
Answer:
-7/48
Step-by-step explanation:
- Ok, so if there is a change of -7/16 inches every 3 years, then you just basically have to divide -7/16 inches by 3. And since you can't divide fraction and only multiply the reciprocal of a fraction you would say -7/16 * 1/3 = -7/48.
- If you want to mark it on a number line, you would basically just find -7/16 and divide the distance from 0 to -7/16 into 3 portions and mark the 1st third of the distance your answer.
3x^2 + 2x - 6 if x = -2
=3(-2)^2 + 2(-2) - 6
=12 - 4 - 6
= 2
5x^2 + 6x - 2 if x = -2
=5(-2)^2 + 6(-2) - 2
=20 - 12 - 2
= 6
-2x^3 + 2x^2 if x = 2
= -2(2)^3 + 2(2)^2
= -16 + 8
= -8
Each piece will be the same length. We can convert 5 1/2 into an improper fraction. 5 1/2 = 11 / 2 Divide 66 by this improper fraction. 66 / (11 / 2) When we divide by a fraction, we multiply by the reciprocal of that fraction. 66 * (2 / 11) = 2 * 6 = 12 12 pieces can be cut.
Answer:
C
Step-by-step explanation:
