-4 (x - 5) + 3 (a - 7)

First, expand your problem. / Your problem should look like: -4x + 20 + 3a - 21
Second, simplify. / Your problem should look like: -4x + 3a - 1

Answer: -4x + 3a - 1 (C)

8 0

3 years ago

Read 2 more answers

(4,2);slope=3<br><br>help me out

ivolga24 [154]

We have a point and a slope, so let's use the point slope formula!

$(y - y1) = m(x - x1)$
where
x1=4
y1=2
and m=3

$(y - 2) = 3(x - 4) \\ y - 2 = 3x - 12 \\ y = 3x - 10$

8 0

3 years ago

Mark buys a used car for $12,000. The value of the car depreciates 10% per year from the time he bought the car.

timama [110]

Answer:

option D

Step-by-step explanation:

r = 10% = 0.10

$v(t) = P (1 - r)^t\\\\V(t) = 12000(1 - 0.10)^t\\\\V(t) = 12000\times (0.9)^t$

4 0

3 years ago