Answer:
2x^2 +11
Step-by-step explanation:
f(x) = 3x^2 +2
g(x) = x^2 -9
f(x) - g(x) = 3x^2 +2 - (x^2 -9)
Distribute the minus sign
= 3x^2 +2 -x^2 +9
Combine like terms
= 2x^2 +11
2)
a*2 + b = 26;
a*(-4) + b = -16;
then, a*6 = 42 => a = 7 => b = 26 -14 => b = 12;
from table, 7*9 + 12 = 63 + 12 = 75, correct;
7*(-8) + 12 = -56 + 12 = -44, correct;
slope = ( -44 + 16) / ( -8 + 4) = ( - 28) / (-4) = 7 = a;
Answer:
Improper Faction: 26/3
Mixed Number: 8 2/3
Step-by-step explanation:
Look at 9 1/3.
How many 3s are in 9?
3 * 9 = 27
Add the remaining number from the numerator.
27 + 1 = 28
The equation is now 28/3 - 2/3.
Subtract normally to get 26/3.
Depending on what your teacher wants, you either keep it as a improper fraction or turn it into a mixed number.
The mixed number being this: 8 2/3.
