Write the division problem using two other symbols.21 ÷ 3 = 7
A. 
= 7; 
B. 
= 7; 
C. 
= 21; 
D. 21 × 3 = 7; 21 - 3 = 7
Answer: B
Mathematics
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Solve the equation by completing the square. Express any complex numbers using i notation.x2 + 4x = 7
A. x = -1 ± 
B. x = -2 ± 
C. x = 2 + 
D. x = -2 ± 2
Mathematics
Add.5 + (-39)
A. 34 B. 44 C. -44 D. -34
Mathematics
Solve the problem.The volume of a cylinder whose height is equal to twice its radius is f(x) = 2?x3 cm3, where x is the radius of the cylinder in cm. Find the inverse of this function.
A. f-1(x) = 
B. f-1(x) = 2?
C. f-1(x) = 
D. f-1(x) = 
Mathematics
Provide an appropriate response.What polynomial, when divided by 10a2x6, yields 9a9x9 - 8x7 + 9a as a quotient?
A. 90a11x15 - 80a3x13 + 9a B. 90a11x15 - 80a2x13 + 90a3x6 C. 90a11x15 - 8x7 + 9a D. 90a9x9 - 80x7 + 90a
Mathematics