The rectangular coordinates of a point are given. Find polar coordinates of the point. Express ? in radians.(2, -2
)
A. 
B. 
C. 
D. 
Answer: B
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Solve the problem.A weight is suspended on a system of spring and oscillates up and down according to P = 0.1[3 cos (8t) - sin (8t)]where P is the position in meters above or below the point of equilibrium (P = 0) and t is time in seconds. Find the time when the weight is at equilibrium. Find all values of t, 0 ? t ? 1, rounded to the nearest 0.01 second.
Fill in the blank(s) with the appropriate word(s).
Solve the problem.One Internet service provider has the following rate schedule for high-speed Internet service:Monthly service charge$18.001st 50 hours of usefreeNext 50 hours of use$0.25/hourOver 100 hours of use$1.00/hourWhat is the charge for 50 hours of high-speed Internet use in one month?What is the charge for 75 hours of high-speed Internet use in one month?What is the charge for 135 hours of high-speed Internet use in one month?
Fill in the blank(s) with the appropriate word(s).
Find the value of the variable that satisfies the equation.3x + 5 = -1 - 9x
A. x = - 
B. x = 2
C. x = - 2
D. x = - 
Solve the application and answer with a complete sentence.44.5% of the students at a certain college are men. If the total number of students at the college is 1800, how many female students are there?
A. There are 999 female students. B. There are 801 female students. C. There are 1019 female students. D. There are 900 female students.