Write an expression involving subtraction and simplify.37 subtracted from -13.
A. 24
B. -24
C. -50
D. 50
Answer: C
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Simplify. Write your answers in the form of a+bi, where a and b are real numbers.2i(4 - 5i)
A. - 8i - 10i2 B. 8i - 10 C. 10 + 8i D. 8i + 10i2
Solve the problem.Find the vertices and foci of the following hyperbola:
- 
= 1
A. Vertices: (16, 0), (-16, 0); Foci: (6, 0), (-6, 0) B. Vertices: (0, 4), (0, -4); Foci: (0, 6), (0, -6) C. Vertices: (0, 6), (0, -6); Foci: (0, 4), (0, -4) D. Vertices: (4, 0), (-4, 0); Foci: (6, 0), (-6, 0)
Provide an appropriate response.(a) Show that 
dx = 
e-4 < 0.0092 and hence that 
dx < 0.0092.(b) Explain why this means that 
dx can be replaced by 
dx without introducing an error of magnitude greater than 0.0092.
What will be an ideal response?
Solve.
- 
= 
A. -6 B. 3, 6 C. 6 D. empty set solution