Add or subtract as indicated.
- 
A. 
B. 
C. 
D. 
Answer: D
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Find the product.(2z2 - 5z - 1)(z2 + 5z - 4)
A. 2z4 + 10z3 - 33z2 + 15z + 4 B. 2z4 + 5z3 - 34z2 + 15z + 4 C. 2z4 + 5z3 - 33z2 + 15z + 4 D. 2z4 + 10z3 - 34z2 + 15z + 4
Find the indicated probability.The age distribution of students at a community college is given below. Age (years)Number of students (f)
1094?A student from the community college is selected at random. Find the probability that the student is at least 31. Round approximations to three decimal places.
A. 0.931 B. 76 C. 0.048 D. 0.069
Provide an appropriate response.True or false? If a, b, c are the lengths of the sides of a right triangle, then a + 10, b + 10, c + 10 are also the lengths of the sides of a right triangle.
A. True B. False
Use a double-angle identity to find the exact value of the expression.1 - 2 sin2 
A. - 
B. 
C. 
D. - 