Solve the problem.If P = (-2, 5) and Q = (x, -27), find all numbers x such that the vector represented by 
has length -40.
A. {26, -26}
B. {22, -26}
C. {26, 22}
D. {22, -28}
Answer: B
Mathematics
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Write a chain rule formula for the following derivative.
for w = f(x, y, z); x = g(r, s), y = h(t), z = k(r, s, t)
A. 
= 
+ 
B. 
= 
+ 
C. 
= 
D. 
= 
+ 
Mathematics
Perform the indicated operations. Write the answer in the form a + bj.(-3 + 7j) - 4
A. -7 + 7j B. 1 - 7j C. 7 - 7j D. 1 + 7j
Mathematics
Evaluate the derivative at the given value of x.y = -3x2 + 5x; x = 7
A. -22 B. -147 C. -7 D. -37
Mathematics
Choose the equation that matches the graph.
A. 
- 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Mathematics