Answer:
(7, - 7 )
Step-by-step explanation:
- 4x + y = - 35 → (1)
- 2x - y = - 7 → (2)
adding the 2 equations term by term will eliminate the y- term
(- 4x - 2x) + (y - y) = - 35 - 7
- 6x + 0 = - 42
- 6x = - 42 ( divide both sides by - 6 )
x = 7
substitute x = 7 into either of the 2 equations and solve for y
substituting into (1)
- 4(7) + y = - 35
- 28 + y = - 35 ( add 28 to both sides )
y = - 7
solution is (7, - 7 )
Answer:
A. 17
B. 16
Step-by-step explanation:
F(5)
5 > 2 so you plug the 5 into 3x+2
F(-2)
-5 < -2 < 2 so you plug the -2 into (x-2)^2
You write it as $101,000.
<h3>
Answer: Choice B</h3>
Explanation:
Notice that the jump from y = 9 to y = 10 is +1
But the jump from y = 10 to y = 12 is +2
This is sufficient info to say that the rate of change is <u>not</u> constant. The change in y must be the same.
If you were to plot these points on the same xy grid, then you could see that it's impossible to draw a straight line through all four points.
See below.
Answer:
~13 years
Step-by-step explanation:
18500 = 6500(1 + [0.082/2])^(2t)
2.84 = (1.041)^2t
t ≈ 12.988 ≈ 13