Change the complex number to rectangular form.4(cos 313° + j sin 313°)
A. 2.728 - 2.925j
B. -2.925 + 2.728j
C. -1.364 + 1.463j
D. 1.364 - 1.463j
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, B's to the next 25%, and C's to the next 42%. What is the bottom cutoff for a C grade? Round your answer to the nearest whole number.
A. 77 B. 63 C. 65 D. 68
Determine which numbers in the set are whole numbers.
A) 10, 14
B) 10, –12, 0, –20, 14
C) 10, 0, 14
D) 
E) 
The following table shows the earnings for the Juarez family last year. Solve the problem.MonthEarningsMonthEarningsJan.$1400July$1300Feb.$1150Aug.$2450Mar.$2950Sept.$2500Apr.$2300Oct.$2000May$1650Nov.$2350June$2700Dec.$2400What was the family's total income for the year?
A. $24,000 B. $22,000 C. $23,750 D. $25,150
Fill in the blank with the correct symbol <, >, or =, to make a true statement.2.9 
3.6
A. > B. = C. <