Find the vertex of the parabola and determine if it is a maximum or minimum. y = -x2 + 2x - 8
A. (1, -7); maximum
B. (1, 7); maximum
C. (1, 7); minimum
D. (1, -7); minimum
Answer: A
Mathematics
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Simplify the expression.15y + 5(2 - 4y)
A. 11y + 10 B. 35y - 10 C. -5y + 10 D. 5y - 10
Mathematics
Find the surface area of the circular solid. Unless otherwise specified, use 3.14 for ? and round your answer to the nearest tenth.A sphere with r = 3 cm
A. 28.3 cm2 B. 37.7 cm2 C. 113.2 cm2 D. 113.0 cm2
Mathematics
Express the sum using summation notation. Use a lower limit of summation not necessarily 1 and k for the index of summation.5 + 6 + 7 + 8 + . . . + 35
A. 
B. 
C. 
D. 
Mathematics
First, round the mixed numbers to the nearest whole number and estimate the answer. Then find the exact answer and write it in simplest form.17
- 
A. 15
B. 17
C. 16
D. 16
Mathematics