Answer:
a ) 7a + 12
b) b - 15
Step-by-step explanation:
a)2a+5a +8+8
= 7a + 12
b) b - 7 - 8
= b-15
The cost of dryer is $450 and the cost of washer is $412
Answer:
A.) The graph is translated 2 units in the positive x-direction
Why?
Because it goes horizontally and vertically downwards in the opposite quadrant
Answer:
<h2>-4a²b³ (-6+ 7a³)</h2><h2 />
Step-by-step explanation:
24a²b³ - 28a⁵b³
apply exponential rule:
24a²b³ - 28a²a³b³
re-write 24 as 6*4 and -28 as 7*4
6*4a²b³ + 7*4a²a³b³
factor common terms
-4a²b³ (-6+ 7a³)
Answer:
(4,12)
(-1,-3)
Step-by-step explanation:
x^2 - y = 4
y = 3x
Use substitution. Substitute 3x for y in the first equation
x^2 - (3x) = 4
x^2 -3x =4
Subtract 4 from each side
x^2 -3x -4 = 4-4
x^2 -3x-4 =0
Factor
(x-4) (x+1) =0
Using the zero product property
x-4 =0 x+1 =0
x=4 x=-1
Now to find y for each x solution
x=4
y =3x = 3(4) =12
(4,12)
x=-1
y =3x = 3(-1) =-3
(-1,-3)
