Identify and graph the polar equation.r = 1 - sin ? 
A. 
cardioid
B. 
cardioid
C. 
cardioid
D. 
cardioid
Answer: C
Mathematics
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Find an approximate value for the integral, using the trapezoidal rule with n intervals. Round the answer to the nearest tenth if necessary.
n = 4
A. 690 B. 70 C. 700 D. 770
Mathematics
Add.8,6825,354
A. 20,127 B. 21,127 C. 21,106 D. 20,917
Mathematics
Express the vector as a product of its length and direction.4j - 3k
A. 5
B. 5(j - k)
C. 5
D. 25
Mathematics
Evaluate the algebraic expression for the given value or values of the variable(s).
;
x = 7
A. 
B. 6
C. 3
D. 4
Mathematics