Find a polar equation for the conic. A focus is at the pole.e = 
; directrix is perpendicular to the polar axis 2 to the left of the pole
A. r = 
B. r = 
C. r = 
D. r = 
Answer: B
Mathematics
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Evaluate the expression according to the replacement value given.x2 - 3y; replace x with 8 and y with 2.
A. 58 B. 10 C. 22 D. 70
Mathematics
Solve the problem.To convert a temperature from degrees Celsius to degrees Fahrenheit, you multiply the temperature in degrees Celsius by 1.8 and then add 32 to the result. Find F as a linear function of c, and use this function to convert 34° C to °F.
A. 93.2°F B. 80.9°F C. 84.2°F D. 88.5°F
Mathematics
Solve.In this expression, which symbol is the base?36
A. 36 B. 6 C. 3 D. There is no base in this expression.
Mathematics
Factor the expression completely. If the polynomial will not factor, write "prime."6x2 + 7xt + 2t2
A. prime B. (2x + t)(3x + 2t) C. (6x + t)(x + 2t) D. (2x - t)(3x - 2t)
Mathematics