Answer:
y = - x² - 15x - 56
Step-by-step explanation:
y = - (x + 8)(x + 7) ← expand factors using FOIL
= - (x² + 15x + 56) ← distribute parenthesis by - 1
y = - x² - 15x - 56 ← in standard form
I’m guessing you mean he saves 15%?
He saves $975
Spends: $5525
Answer:
B & D
Step-by-step explanation:
First, subtract the height he will grow to to the height he is now.
132 - 90 = 42
Now divide this from 3.5.
42 / 3.5 = 12
So it will take 12 months for him to grow to a height of 132 cm.