Answer:
The horizontal line test may be used to determine whether a function is one-to-one.
The vertical line test may be used to determine whether a relation is a function.
Step-by-step explanation:
i dont think its D or B
if im wrong correct me but have a blessed day
Hello from MrBillDoesMath!
Answer:
The three numbers are 18, 20, and 22
Discussion:
Let the first number be called "x". The the Question states that
x + (x+2) + ( x+2 +2) = 60 => combine like terms
3x + ( 2 + 2 +2) = 60 => simplify
3x + 6 = 60 => subtract 6 form both sides
3x = 60 - 6 = 54 => divide both sides by 3
x = 54/3 = 18
So the numbers are 18, 20, and 22
Thank you,
MrB
Answer:
6(y + 4) = -3(2y - 2) + 8y
6y + 24 = -6y + 6 + 8y
6y + 24 = 2y + 6
Subtract -2y on both sides
4y + 24 = 6
Subtract -24 on both sides
4y = -18
y = - 4.5
9514 1404 393
Answer:
405 mph; 325 mph
Step-by-step explanation:
The total of their speeds is ...
2920 mi/(4 h) = 730 mi/h
If s represents the speed of the slower plane, then we have ...
s + (s+80) = 730
2s = 650 . . . . . . . subtract 80
s = 325 . . . . . . . divide by 2
s+80 = 405 . . . find the faster speed
The speeds of the planes are 405 mi/h and 325 mi/h.
