Divide and express the result in standard form.
A. 1 - 2i
B. - 1 + 2i
C. 1 + 2i
D. 
+ 
i
Answer: C
Mathematics
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Fill in the missing value.9.21 cm2 = mm2
A. 9210 B. 921 C. 92.1 D. 92,100
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Solve the logarithmic equation.log (x + 10) - log (x + 4) = log x
A. 6 B. 2, -5 C. 2 D. No solution
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Find the slope and the y-intercept of the line.8x + 9y = 77
A. Slope 
; y-intercept 
B. Slope - 
; y-intercept 
C. Slope - 
; y-intercept 
D. Slope 
; y-intercept 
Mathematics
Use the sum-of-the-years'-digits method of depreciation. Round to the nearest dollar.Find the book value at the end of the third year for a service van which cost $16,000, has a life of 8 years, and an estimated scrap value of $1,600.
A. $8,400 B. $6,000 C. $10,000 D. $7,600
Mathematics