Answer:
sorry in middleschool so cant help but if i did know i would love to help
Step-by-step explanation:
Answer:
D In step 3
Step-by-step explanation:
Given polynomial: x² - 2x - 15 = 0
Step 1: factor the polynomial ⇒ (x + 3)(x - 5) = 0
Step 2: x + 3 = 0 and x - 5 = 0
Step 3: x = -3 and x = 5
x - 5 = 0
Add 5 to both sides:
⇒ x - 5 + 5 = 0 + 5
⇒ x = 5
227.5 You multiply it be 1.3, so you can add on the extra 30%
Answer:
45 = 2x + 22
Step-by-step explanation:
Perimeter is all the sides lengths added together.
Step 1: Set up equation
7 + 7 + x + 4 + x + 4 = 45
Step 2: Combine like terms
2x + 22 = 45
