Answer:

Step-by-step explanation:
Use the cosine law:

We have:

Substitute:

Answer: -x^2 +4x -2
Step-by-step explanation:
5x+2(3x-1)
Use that
x(x+7)
minus the use that equation by this one and get the answer
Answer:
between 0 and 60
Step-by-step explanation:
Because the points on the scatter plot range on the X-axis from 0 to 60
Hope this Helps!!
9×18 rectangle plus a (18-6-6)×4 right triangle
Area = 9×18 + (1/2)×6×4 = 174
Answer: 174 sq ft