Answer:
d and g
Step-by-step explanation:
Supplementary angles add up to 180 degrees, so we know that (6x+28)+(2x+8)=180. 8x+36=180, 8x=144. x=18. 6x+28=18(6)+28=136
2x+8=36+8=44
Answer:
y = - 2(x - 1)² + 18
Step-by-step explanation:
- 2x² + 4x + 16 ← factor out - 2 from the first 2 terms
= - 2(x² - 2x) + 16
using the method of completing the square
add/subtract ( half the coefficient of the x- term)² to x² - 2x
= - 2(x² + 2(- 1)x + 1 - 1) + 16
= - 2(x - 1)² + 2 + 16
= - 2(x - 1)² + 18 ← in vertex form
Answer:
A. Area is 15cm x 15cm = 225cm is the area of 1 tile.
B. She will need 484 tiles
C. She will need to purchase 14 boxes
Step-by-step explanation:
