Answer:
it's
Step-by-step explanation:
(2f+2)(2f-2)
(2f^2-2^2)
Answer:
Look at the explanation
Step-by-step explanation:
after the second line (4x-2x) +20= 2
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after the 3rd line
2x=2-20=-18
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after 4th line x=-18/2
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At the end
4(-9+5)=2(-9)+2
-36+20=-18+2
-16=-16 so it is right
Answer:
To find 3,500 by near to 3,550
Step-by-step explanation:
the nearest number of 3,500 is 3,500
Answer:
-36 or 36 ft below the entrance
Step-by-step explanation:
Her starting point is negative since it is below the entrance
-42
Descends 12 feet so subtract 12
-42 -12 = -54
Ascends 18 ft so go up 18 which means add 18
-54 +18 =-36
7*y - 5*(4-2y) = 7y - 20 +10y = 17y-20 = 31,
y =3, x = -2.
Weird 20 min without answer!
