B,C and D maybe . They seem like they make more sense
Ab and bc are equal.
Automatically bc = 8v
8v + 8v = 16v
16v = 2v + 42
14v = 42
V = 3
8(3) + 8(3) = 2(3)+42
48=48
Bc = 8v
Answer:
(9+13)/2*10
=22/2*10
=11*10
=110
Step-by-step explanation:
First, we figure out the formula for areas of trapezoids is (a+b)/2*h.
Next, we plug in the numbers which will give use the equation:
22/2*10
Lastly, we solve:
11*10=110
First you would multiply your hours, 9, by how fast the temperature is dropping, -2 ( because it is dropping, your number would be a negative). 9 x -2 = -18.
Next add 17 + -18 to get -1. -1°C is your answer.
