Write a formula for the function described.Function I computes the number of inches in x centimeters. (Hint: there are 2.54 centimeters in one inch.)
A. I(x) = 2.54x
B. I(x) = 
C. I(x) = 
D. I(x) = 2.54 - x
Answer: C
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Write the Hindu-Arabic numeral in expanded form.984,284
A. (9 × 105) + (8 × 104) + (4 × 103) + (2 × 102) + (8 × 101) + (4 × 100) B. (9 × 106) + (4 × 104) + (2 × 103) + (8 × 102) + (4 × 101) C. (9 × 100) + (8 × 101) + (4 × 102) + (2 × 103) + (8 × 104) + (4 × 105) D. (9 × 106) + (8 × 105) + (4 × 104) + (2 × 103) + (8 × 102) + (4 × 101)
Write the number in decimal notation.
?
?
A. 31.276 B. 3.127 C. 67.213 D. 3.1276 E. 312.76
Solve.An electronics manufacturer's revenue R for selling x mobile phones is given by 
A competing electronics manufacturer's revenue for selling a similar mobile phone is 
Under what circumstances will both manufacturers make the same revenue?
A. They will make the same revenue if they sell 430 phones. B. They will make the same revenue if they sell 0 or 215 phones. C. They will make the same revenue if they sell 0 or 430 phones. D. They will never make the same revenue.
Write the number as a product of a real number and i. Simplify the radical expression.
A. ± 40
B. 40i
C. i
D. -40i