Solve the quadratic equation by completing the square.3x2 + 21x = - 36
A. {-4, 3}
B. 
C. {-4, -3}
D. {3, 4}
Answer: C
Mathematics
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Find the indicated probability.The table shows the year and political party of a random sample of students from a certain college.
Find the empirical probability that a student at the college is an Independent. Round your answer to the nearest thousandth.
A. 0.345 B. 0.115 C. 0.333 D. 0.328
Mathematics
Solve.
- 
= 
A. 42 B. 14 C. 28 D. -14
Mathematics
Solve the problem.Find the length of the unknown side of the right triangle, where a and b are the legs and c is the hypotenuse. a = 6, b = 8, c = ?
A. c = 10 B. c = 7 C. c = 9 D. c = 5
Mathematics
Find an expression, in factored form, for the area of the shaded region.
A. (5y + 6)(5y - 6) B. (5y - 3)2 C. (5y - 6)2 D. (5y + 3)(5y - 3)
Mathematics