Perform the indicated operations.2.7 × (-2.93)
A. -7.911
B. 5.63
C. -0.23
D. 5.73
Answer: A
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Solve the problem.Scores on a test are approximately normally distributed with a mean of 70 and a standard deviation of 9. The teacher wants to give A's to the top 10% of students and B's to the next 23%. What is the bottom cutoff for a B grade? Round your answer to the nearest whole number.
A. 74 B. 66 C. 76 D. 71
Solve the problem.The kind of symmetries found in the wallpaper pattern shown below are the identity and
A. translations and horizontal reflections only. B. translations and vertical reflections only. C. translations only. D. translations and 180° rotations only. E. none of these
Find the integral.
Solve the system by elimination. If the system is inconsistent or dependent, say so.5x + 
y = 154x + 
y = 
A. (4, -2) B. (5, -3) C. (-4, -3) D. empty set solution; inconsistent system