Find the mean for the list of numbers.Scores on a math test: 75%, 52%, 75%, 100%, 52%Round answer to the nearest whole number if necessary.
A. 100%
B. 70%
C. 71%
D. 52%
Answer: C
Mathematics
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Choose the best answer.The area of a head of a screw is about
A. 49 mm2 B. 4.9 m2 C. 49 cm2 D. 4.9 mm2
Mathematics
Factor completely. If the polynomial is prime, state so.243x3y6 - 225x6y3
A. 9x3y3(3y + 5x)(9y2 - 15xy + 25x2) B. 9x3y3(3y - 5x)(9y2 + 15xy + 25x2) C. 9x3y3(27y3 - 25x3) D. 9(3xy2 + 5x2y)(9x2y4 - 15x3y3 + 25x4y2)
Mathematics
Solve the system of equations by substitution, if a solution exists.
A. x = 3, y = 6 B. x = 4, y = 5 C. No solution D. x = -4, y = 6
Mathematics
Use the graph of the function to estimate the x-intercepts.y = -x2 + 2x + 35
A. x = -7, x = 5 B. x = -35, x = -2 C. x = 5, x = 7 D. x = -5, x = 7
Mathematics