Answer:
D. (7,0)
Step-by-step explanation:
Our original equation is 3a-4b=21.
The one we will try first is D. (7, 0)
Since we need to plug it in the form of (a,b) here is the equation now:
3(7)-4(0)=21
Now we solve:
3*7=21
4*0=0
Now we have 21-0=21
21-0 does equal 21.
Answer:
2x + 3
Step-by-step explanation:
To find g(h(x)) substitute x = h(x) into g(x), that is
g(2x) = 2x + 3
Answer:
the independant variable is x
Answer:
x=12
Step-by-step explanation:
The two angles make a straight line, which is 180 degrees
10x-20 +6x+8 = 180
Combine like terms
16x -12 = 180
Add 12 to each side
16x-12+12 = 180+12
16x =192
Divide by 16
16x/16 = 192/16
x =12
Sutract 1 then multiply by 3/2