Write the complex number in rectangular form.4(cos 15° + i sin 15°)
A. 3.9 + 1i
B. -1.9 - 0.5i
C. 1 + 3.9i
D. 1.9 + 0.5i
Answer: A
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We have $16.12 to spend on vegetable plants for our garden. Tomato plants cost $0.88 each, and pepper plants cost $0.36 each. There is space in the garden for 26 plants. Round your answers to two decimal places. ? How many of each are bought? ?
A. 10.00 tomatoes and 16.00 peppers B. 13.00 tomatoes and 13.00 peppers C. 16.00 tomatoes and 10.00 peppers D. 13.00 tomatoes and 13.00 peppers
Solve the problem.The percent of concentration of a certain drug in the bloodstream 
after the drug is administered is given by K(x) = 
. At what time is the concentration a maximum?
A. 2.5 hr B. 7 hr C. 4.9 hr D. 4 hr
Draw a complete graph so that it has the given type of symmetry.Symmetric with respect to the x-axis
A. 
B. 
C. 
D. 
A Ferris wheel is built such that the height h (in feet) above the ground of a seat on the wheel at time t (in seconds) can be modeled by 
. The wheel makes one revolution every 36 seconds and the ride begins when t = 0. During the first 36 seconds of the ride, when will a person, who starts at the bottom of the Ferris wheel, be 67 feet above the ground?
?
A. 9 seconds and 22 seconds B. 9 seconds and 27 seconds C. 10 seconds and 22 seconds D. 9 seconds and 17 seconds E. 10 seconds and 17 seconds