Convert the equation to polar form. x² - y² = 4

a. r = 4 csc2?
b. r = 2 csc?
c. r = 2 sec2?
d. r² = 4sec2?
e. none of these


d. r² = 4sec2?

Mathematics

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Solve the initial value problem. =  csc t cot t, v = 

A. v = -  + 
B. v = -  + 
C. v = -  + 
D. v = csc t - 

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Determine whether the equation is quadratic.4x2 - 5 = 0

A. Yes B. No

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Write the percent as a decimal.500%

A. 0.5 B. 50 C. 5 D. 500

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If possible, evaluate the expression by hand. If not, approximate the answer to the nearest hundredth. Variables represent any real number.-

A. -10 B. -3.16 C. 3.16 D. 100

Mathematics