Answer:
Step-by-step explanation:
True
Oldest = 2x
Middle = x + 5
Youngest = x
2x + x + 5 + x = 57
combine like terms
4x + 5 = 57
subtract 5 from both sides
4x = 52
divide both sides by 4 to isolate x
x = 13
Oldest = 2x = 2(13) = 26
Middle = x + 5 = 13 + 5 = 18
Youngest = x = 13
Answer:
-98
Step-by-step explanation:
Answer:
Step-by-step explanation:
Find the sum of the squares of the residuals for
y 2x 6
Measure of angle 8 is 135°