Perform the operation and write the result in the standard form.(4 + 8i)(4 - 8i)
A. 16 - 64i2
B. 16 - 64i
C. 80
D. -48
Answer: C
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Solve the equation. Express radicals in simplest form.x2 + 11x + 28 = 0
A. 4, - 7 B. - 4, - 7 C. 4, 7 D. 28, 0
Find the mean of the data set.
Use the following information to answer questions 2-10. 24 students in an engineering class were asked to record the number of hours spent in a lab during a week. The results are listed below. 3, 10, 21, 14, 8, 5, 1, 4, 13, 7, 9, 6, 11, 10, 6, 7, 12, 16, 1 , 7, 14, 1, 11, 8
Complete the table.
A. 
B. 
C. 
D. 
Write standard notation for the number in the sentence.The volume of water in the lake is seven billion, eight hundred twenty-one million, ninety-four thousand, six hundred thirteen gallons.
A. 7,821,094,613 B. 782,194,613 C. 7,821,940,613 D. 7,000,821,094,613