Well I don't know !
Let's check out the choices:
A). 3a - 4b = 21, a=0, b=7
3(0) - 4(7) = 21
0 - 28 = 21 Nope. That's not true.
B). 3a - 4b = 21, a=-3, b=2
3(-3) - 4(-2) = 21
-9 + 8 = 21
-1 = 21 Nope. That's not right.
C). 3a - 4b = 21, a=-2, b=-3
3(-2) - 4(-3) = 21
-6 + 12 = 21
6 = 21 Nope. That's not it.
Only one choice left.
This one had better be it:
D). 3a - 4b = 21, a=7, b=0
3(7) - 4(0) = 21
21 - 0 = 21
21 = 21 Yay ! That's it !
-2/3(2/2)= -4/6
1/2(3/3)= 3/6
-4/6+3/6= -1/6
The answer is -1/6. Hope this helps!
2(2x^2-3) -5
4x^2 - 6 - 5
4x^2 - 11
g(x) = 2x - 5
If you had to evaluate g(3)
You would substitute 3 in for the x and simplify. Instead of substituting a single number you are substituting the binomial
2x^2 -3 and then simplifying. I hope you understand.
Answer: 1.33-inch wheels
Step-by-step explanation:
The scale factor is 1 : 12. (i.e 12 inches on the actual is represented by one unit on the scale model)
So, If the actual car has 16-inch wheels,
The size of the wheels on the scale model will be 16-inch / 12 = 1.33-inch
Thus, Thom's car will have 1.33-inch wheels
1 cm=0.01m
75cm=0.75m
3/0.75=4
The completed ratio is 1 to 4
