Answer:
x=4 and x=-3
Step-by-step explanation:
You have to set each one equal to zero and solve for x
x-4=0 x+3=0
+4 +4 -3 -3
x=4 x=-3
You plug in x + 8 for y in the second equation.
answer: x + x + 8 = 2
Answer: 28.9 inches ; 15.7 inches
Step-by-step explanation:
Given that:
Width to height = 16 : 9
Hence,
Width = 16x ; height = 9x
Using Pythagoras, solve for the length of the diagonal = 32
32² = 16x² + 9x²
1024 = 256x² + 81x²
1024 = 337x²
x² = 1024 / 337
x² = 3.0385756
x = 1.7431510
Width = 16( 1.7431510) = 27.89 = 28.9
height = 9(1.7431510) = 15.688 = 15.7
The answer to the question is answer 2