By adding up everything she bought you will get the cost of $13.05.
Subtract that from $15.00 and you will get $1.95 which is how much money she will receive in change
Just organized them. Order:
15, 18, 46, 50, 50 ,50, 50, 57
Add them up, which is 336. Divide that by 2, and the mean is 168
Answer:
A. maximum value at 30
Step-by-step explanation:
−x² + 10x + 5
First, factor out the leading coefficient from the first two terms:
-1 (x² − 10x) + 5
Take half of the next coefficient, square it, then add and subtract the result.
(-10/2)² = 25
-1 (x² − 10x + 25 − 25) + 5
-1 (x² − 10x + 25) + 25 + 5
-1 (x² − 10x + 25) + 30
Factor the perfect square.
-1 (x − 5)² + 30
The equation is now in vertex form. This is a downwards parabola with a vertex at (5, 30). Since the parabola points down, the vertex is a maximum.
Answer:
your answer is -1
Step-by-step explanation:
D = <u><em>distributive property</em></u>
S = <u><em>switch</em></u>
C = <u><em>combine</em></u>
I = <u><em>inverse operations</em></u>
F = <u><em>finalize</em></u>
