Find the area of the specified region.Inside one loop of the lemniscate r2 = 7 cos 2?
A. 14
B. 7
C. 
D. 
Answer: C
Mathematics
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Find the GCF of 40, 45, and 50.
A. 10 B. 8 C. 1 D. 5
Mathematics
Decide whether or not the ordered pair is a solution of the equation.
+ 3y = -8; (4, -5)
A. Yes B. No
Mathematics
Write the number in scientific notation.0.00009458
A. 9.458 × 10-5 B. 9.458 × 105 C. 9.458 × 104 D. 9.458 × 10-4
Mathematics
Solve.What is the maximum product of two positive numbers whose sum is 30?
A. 7.5 B. 225 C. 450 D. 15
Mathematics