Check the addition. If the answer is incorrect, find the correct answer.
2115
A. Incorrect; should be 2195
B. Incorrect; should be 2105
C. Incorrect; should be 2095
D. Correct
Answer: C
Mathematics
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Sketch a graph of f.f(x) = -4x2 + 3x
A. 
B. 
C. 
D. 
Mathematics
Multiply and simplify any radicals in your answer. Assume that all variables represent positive real numbers.2
(
+ 
)
A. 2
+ 10
B. 10
+ 10
C. 2
+ 5
D. 2
+ 5
Mathematics
Find the sum or difference. Write the answer in standard form, a + bi.9i - (-7 - i)
A. -7 + 8i B. 7 + 10i C. 7 - 8i D. -7 - 10i
Mathematics
Factor the polynomial.x2 - x - 72
A. (x + 9)(x - 8) B. (x + 1)(x - 72) C. (x + 8)(x - 9) D. prime
Mathematics