Let x be a number. Translate the English phrase or sentence into a mathematical expression. Subtract 72 from a number
A. 72
B. 72x
C. 72 - x
D. x - 72
Answer: D
Mathematics
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Convert the equation given in rectangular form into polar form.y2 = 2x
A. r = 2 cot2 x B. r = 4 cot x cscx C. r = 2 cot x cscx D. r2(cos ? + sin ?) = 2
Mathematics
Factor completely. If the polynomial is prime, state this.3x2 - 24x + 45
A. (3x - 1)(x - 45) B. 3(x + 5)(x + 3) C. 3(x - 1)(x - 45) D. 3(x - 5)(x - 3)
Mathematics
Give the equation of the vertical asymptote(s) of the rational function.g(x) = 
A. y = 3 B. y = 6 C. x = 6 D. x = -6
Mathematics
Solve the problem.Find the formula for the volume of the region outside the smaller rectangular solid and inside the larger rectangular solid. Express the volume in factored form.
A. (2a + b)(2a - b) B. 2a(a + b)(a - b) C. 2a(a2 - b2) D. 2a(a2 + b2)
Mathematics