Convert the rectangular equation to polar form.x2 + 4y2 = 4

A. r2 = 
B. r = 
C. r = 
D. r2 = 


Answer: A

Mathematics

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Graph the polar equation.r = 1 - 3 sin ?

A.

B.

C.

D.

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Write the underlined number in word form.The sales tax rate in Jefferson County is  percent.

A. five and two-ten-thousandths B. five and two-thousandths C. five and two-tenths D. five and two-hundredths

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Solve the equation and express the solution in exact form.ln ex - ln e5 = ln e8

A. {-3} B. {3} C. {13} D. {40}

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Solve the problem.A rancher in Calgary decides to build a silo inside his corral. The rectangular corral measures 22 m by 15 m and the silo's base is circular with a diameter of x meters. Find a polynomial for the remaining area of the corral (in square meters) after the silo is built.

A. 330 - ?x2
B. 330 - x2
C. x2 - 330
D. 330 - 2?x

Mathematics