Simplify the expression.-5b + 8b
A. 3b2
B. 3b
C. -13b
D. -3b
Answer: B
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Use Euler's method with the specified step size to estimate the value of the solution at the given point x*. Find the value of the exact solution at x*.y' = 5xex5, y(0) = 2, dx = 0.1, x* = 1
A. Euler's method gives y ? 4.3794; the exact solution is 3.4465 B. Euler's method gives y ? 5.3526; the exact solution is 3.9901 C. Euler's method gives y ? 3.7183; the exact solution is 4.2619 D. Euler's method gives y ? 4.8660; the exact solution is 3.7183
In a certain lake the intensity of light from the surface decreases by 40% for each additional meter of depth.
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A: Explain why light intensity is an exponential function of depth.
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B: Using 
for intensity at the surface of the lake, write a formula that gives the intensity I of light ?d meters below the surface.
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C: At what depth will light intensity be one tenth of surface intensity? Round your answer to two decimal places if necessary.
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What will be an ideal response?
Use the table to find the monthly payment on the given loan. 
amount: $80,000; rate: 8%; time: 10 years
A. $668.80 B. $1057.60 C. $970.40 D. $888.00
Provide an appropriate response.Simplify: (3 - 2i) - (5 - 6i)
A. -2 + 4i B. 15 - 12i C. -2 - 8i D. -2 - 4i