Answer:
8 years
Step-by-step explanation:
The hint does help a lot!
Convert the feet to inches: 5 feet = 60 inches, 3 feet = 36 inches
Make two equations: For Type A, the slope is 12 (grows 12 inches a year) and the y intercept is 60 (starts at 60 inches tall)
For Type B, the slope is 15 (grows 15 inches a year) and the y intercept is 36 (starts at 36 inches tall)
Set the two equations equal to each other, and solve for x:
12x + 60 = 15x + 36
subtract 36 from both sides
12x + 24 = 15x
subtract 12x from both sides
24 = 3x
divide both sides by 3
8 = x
It will take them 8 years to be the same height, and their height will be (12(8) + 60) or (15(8) + 36) = 156 inches
Answer:
The domain is -12, 0, 2, 8.
Step-by-step explanation:
The domain is the set of all possible x-values. The x-values are the first numbers in a point.
You have to multiply the 2 equations. so it will be 2n^2 ×2n= 4n^2 Then, -7n×2n= -14n Then, -4x2n= -8n Then, 2n^2×-5=-10n^2 Then -7n×-5= 35n Then, -4×-5=20. Combine like terms, 4n^2 -14n -8n -10n^2 +35n +10 = -6n^2+13n+10 After this you can keep it as simplest for OR X-BOX OR FOIL
Answer:
∠ 4
Step-by-step explanation:
range is the values for y: y can be (including) -6 all the way up to (not including) 4