Hello there! Given the expression, we can solve through a series of steps:
1. Simplify
-5 + 7 • 1
2. Multiply (according to order of operations)
7 • 1 = 7
3. Add
-5 + 7 = 2
Your final answer is 2. Hope this helps!
Using implicit differentiation, it is found that the height of the pile is changing at a rate of 0.1415 feet per minute when the pile is 2 feet high.
The height of the pile is changing at a rate of 0.1415 feet per minute when the pile is 2 feet high.
Answer:

Step-by-step explanation:
You have to solve for the x intercept on the equation

That is the x intercept for that equation.
Then solve for the y intercept on the equation

That is the x intercept for that equation.
Use that to find slope for point slope form

1 is the slope
and slope makes B the y intercept so the equation is

Answer:
B
Step-by-step explanation:
It is complementary because adding DEQ and REQ together adds up to 90 degrees