Answer:
5
Step-by-step explanation:
Answer: 6
Step-by-step explanation: Gets x by itself.
Answer:
slope = -1
Step-by-step explanation:
slope formula: (y2-y1)/(x2-x1)
(1-2) divided by (9-8) = -1/1 = -1
slope = -1
you can switch it up by doing (9-8) divided by (1-2), but it won't make a difference I think.
They are 50 degrees and 110 degrees. Hope it helps!
Perimeter: 2W +2L = 48
Area = L x W = 140
Rewrite the area to solve for L: L = 140/W
Now replace that in the perimeter formula:
2W + 2(140/W) = 48
Divide all terms by 2:
W + 140/W = 24
Divide both sides by W:
140 + w^2 = 24w
Subtract 24w from both sides:
w^2 - 24w + 140 = 0
Factor:
(w-10) (w-14) = 0
Solve for each w for 0:
10-10 - 10 and 14-14 = 0
So the 2 dimensions are 10 and 14 cm.
14 isn't a choice so the answer is B. 10 cm.
