Answer:
y=110 because the angles correspond
x=55 because they are verticals angles and are congruent so you set them equal to each other
Explanation:
2x=110
x=55
Answer: -4x^2 + 8xy - 20y^2 + 12
Step-by-step explanation:
-4 (x2 - 2xy + 5y2 - 3)
-4(x^2) = -4x^2
-4(-2xy) = 8xy
-4(5y^2) = -20y^2
-4(-3) = 12
Cost of the current plan: $175
Number of devices: x
Cost of the new plan: $94+($4.50/device)x
Cost of the new plan is less than the current plan:
$94+($4.50/device)x<$175
Solving for x:
$94+($4.50/device)x-$94<$175-$94
($4.50/device)x<$81
(device/$4.50)($4.50/device)x<(device/$4.50)($81)
x<18 devices
Please, see the attached file.
Thanks.
Answer:
4 kilometers north
Step-by-step explanation:
2 kilometers north up 2
2 kilometers east, right 2
2 kilometers west then left 2
We are now at the position of up 2 again
6 kilometers south down 6
up 2 down 6 leaves us at down 4
We are 4 km south
We will need to go 4 km north to get back to the dock