F(x) = x^2 - 3x - 8
f(-2) = (-2)^2 - 3 (-2) - 8
f(-2) = 4 - 3 (-2) - 8
f(-2) = 4 + 6 - 8
f(-2) = 10 - 8
f(-2) = 2 ✅
-12/-9=y/-4
cross multiply
-9y=48
divide by 9 on each side
y= -5.33
Answer:
1. 9 raised to the third power is 729
2. 4 raised the the power of 1 is 1
Step-by-step explanation:
9*9= 81*9=729
4*1=4
Answer:
Let width = x
Let length = 1.5x
Area = (length)(width)
Area = 1.5x2
Step-by-step explanation:
So we know that an average is the sum of the scores divided by the number of scores that were added together. In this case we are going to be dealing with 4 tests. So let's say x is the score for our fourth test. We can create this equation:

So then we need to simplify the top:

Then multiply by 4 on both sides to get rid of the denominator:

Then solve for x:

So now we know that Sam needs to score a 67 on the fourth test to have an average score of 50.