Add the numbers using the number line.-4 + 0 
A. 4
B. -40
C. -4
D. 0
Answer: C
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Use logarithmic differentiation to find the derivative of y with respect to the independent variable.y = (cos x)x
A. ln x(cos x)x - 1 B. (cos x)x (ln cos x - x tan x) C. (cos x)x (ln cos x + x cot x) D. ln cos x - x tan x
Solve. Use a calculator to approximate the irrational solutions to three places.x2 + 1 = 13
A. ±3.742 B. ±3.464 C. 2.606, -4.606 D. 2.606
Solve the problem.The members of the band were selling t-shirts and school banners for a fundraiser. Justine sold 15 t-shirts and 13 banners for a total of $174.25. Carlo sold 17 t-shirts and 9 banners for a total of $170.25. How much did the band charge for t-shirts? How much for banners?
A. $3.35 for each t-shirt and $15.42 for each banner B. $4.75 for each t-shirt and $7.50 for each banner C. $15.42 for each t-shirt and $3.35 for each banner D. $7.50 for each t-shirt and $4.75 for each banner
Write as a percent. Round to the nearest tenth of a percent.
A. 1.3% B. 12.5% C. 15.6% D. 80%