Answer:
the answer is C
Step-by-step explanation:
just divide 42.75 by 9
Top one
y=-1.7+11y
x=-1.55+10y
Bottom one
y=-7.14-5x
Ax+By+C=0. Standard form of a linear equation.
Use C= (B/2)^2. To complete the square.
D=RxT. Distance = (Rate)(Time
y = mx + b. Slope-intercept form ( easy to graph)
We know that we can do
ab+ac=a(b+c)
so find common factor
factor them
27a=a times 3 times 3 times 3
21=3 times 7
common factor=3
3=a
27a/3=9a
21/3=7
so now we have
(3)9a+(3)7=3(9a+7)