Classify the angle as acute, obtuse, right, or straight.
A. Right
B. Straight
C. Acute
D. Obtuse
Answer: D
Mathematics
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Solve the system of equations.7x + 7y + z = 1 x + 8y + 8z = 89x + y + 9z = 9
A. (0, 0, 1) B. (-1, 1, 1) C. (1, -1, 1) D. (0, 1, 0)
Mathematics
Find a general expression for the slope of a tangent line to the indicated curve.y = 5x4 - 6x3 - 9
A. 20x3 - 18x2 B. 20x4 - 18x3 - 9 C. 4x3 - 6x2 D. 20x3 - 18x2 - 9
Mathematics
Solve the problem.The price of a necklace is $12.99. If the salesperson's rate of commission is 10%, how much commission is earned on the sale of the necklace? Round to the nearest cent.
A. $12.99 B. $13.09 C. $1.31 D. $1.30
Mathematics
Expand.(
+ 1)6 + (
- 1)6
A. 416
B. 370
C. 370
D. 208
Mathematics