Find the derivative of y with respect to the appropriate variable.y = 5 ln x + 
sech-1 x
A. 5 ln x - sech-1 x
B. 
- 
C. 
- 
D. 
- 
Answer: C
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Solve the triangle.B = 40°, C = 90°, a = 5
A. A = 50°, b = 5.2, c = 6.53 B. A = 50°, b = 6.53, c = 4.2 C. A = 50°, b = 7.53, c = 4.2 D. A = 50°, b = 4.2, c = 6.53
The following table shows the earnings for the Juarez family last year. Use this information to answer the question.MonthEarningsMonthEarningsJan.$1400July$1300Feb.$1150Aug.$2450Mar.$2950Sept.$2500Apr.$2300Oct.$2000May$1650Nov.$2350June$2700Dec.$2400The family saved 
of their total income each month. How much savings did they have at the end of the year?
A. $888 B. $630 C. $810 D. $754.50
Solve. Write the fraction in simplest form.Saji swims 
mi every day. One day he had already swum 
mi. How much further should he swim?
A. 
mi
B. 
mi
C. 
mi
D. 
mi
Convert the length as indicated.83.08 meters to kilometers
A. 8308 km B. 83,080 km C. 0.08308 km D. 0.8308 km