Use substitution to factor the polynomial.10y4 - 7y2 - 12
A. (10y2 - 3)(y2 + 4)
B. (2y2 + 1)(5y2 - 12)
C. (2y2 - 3)(5y2 + 4)
D. (5y - 4)(2y + 3)
Answer: C
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P(3 ? X ? 7)
The probability density function of X is 
Compute the following quantity.
Write the sentence with the fraction as a percent. If necessary, round the percentage to the nearest tenth.
of the residents of Ashville exercise regularly.
A. 520% of the residents of Ashville exercise regularly. B. 0.52% of the residents of Ashville exercise regularly. C. 5.2% of the residents of Ashville exercise regularly. D. 52% of the residents of Ashville exercise regularly.
Use the product and quotient rules, as necessary, to simplify the radical expression.
A. 15
B. 42
C. 7
D. 7
Provide an appropriate response.When solving the equation 4x + 7 = 5, why is 7 subtracted from both sides first instead of dividing both sides by 4 first?
What will be an ideal response?