8-4k=40
-4k=32
k=-8 is the answer
Formula: sqr((x2-x1)^2 + (y2-y1)^2)
sqr((-4-2)^2 + (-7+2)^2)
sqr(-6)^2 + (-5)^2)
sqr(36)+(25)) = sqr(61)
The answer is A. sqr(61)
12 inches = 1 foot
144 square inches = 1 square foot
1250 square inches = 1250/144 = 8.68 square feet
Answer:
x∈{-7√2, 7√2}
Step-by-step explanation:

Answer is: 2x=12, 14, 16, and 18