Determine whether the given expression is a polynomial. If it is, write it in standard form.4x-1 + 2 + 7x
A. Yes; 7x + 4x-1 + 2
B. No
Answer: B
Mathematics
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Translate the sentence into a mathematical equation. Be sure to identify the meaning of all symbols.The surface area of a sphere is 4? times the square of the radius.
A. If S represents the surface area and r the radius, then 4?S =r2. B. If S represents the surface area and r the radius, then S = 4?r. C. If S represents the surface area and r the radius, then S = 4?r2. D. If S represents the surface area and r the radius, then S = ?r2.
Mathematics
Solve the equations by finding the exact solution.
?
What will be an ideal response?
Mathematics
Solve the equation.
= 2
A. {-9} B. {5, 9} C. ? D. {-5, 9}
Mathematics
Find the value of the variable that satisfies the equation.-3x = -13x - 90
A. x = 30
B. x = -9
C. x = - 
D. x = 
Mathematics