Solve the equation.11x + 10x = 105
A. x = 
B. x = 5
C. x = 84
D. x = 
Answer: B
Mathematics
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Find the area of the specified region.Inside the circle r = 
sin ? and outside the cardioid r = 1 + cos ?
A. 
B. 
C. 
D. 
Mathematics
Simplify.
A. 
B. 
C. 
D. 
Mathematics
Subtract.(7x7 + 3x9 - 4 + 3x8) - (-3 + 5x8 + 6x9 + 2x7)
A. -3x9 - 2x8 + 5x7 - 1 B. 9x9 + 8x8 + 9x7 - 1 C. 9x9 + 8x8 + 9x7 - 7 D. -3x9 + 8x8 + 9x7 - 7
Mathematics
Find the surface area of the geometric solid. If needed, use 3.14 as an approximation for ? and round the answer to the nearest tenth.Sphere: r = 5 mi
A. 523.3 mi2 B. 78.5 mi2 C. 314 mi2 D. 104.7 mi2
Mathematics