Use modular arithmetic to find the answer.Fill in the blank so that the answer is nonnegative and the least possible number.2277 ? ___ (mod 10)
A. 2
B. 8
C. 3
D. 7
Answer: D
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Write the number in ordinary notation.7.0289 × 10-7
A. -702890,000 B. 0.000000070289 C. 0.00000070289 D. 0.0000070289
Write the number in scientific notation.65,296
A. 6.5296 x 101 B. 6.5296 x 104 C. 6.5296 x 10-4 D. 6.5296 x 105
Make the conversion indicated. Round your result to the nearest tenth.200°F ? 
°C
A. 392.0 B. 143.1 C. 93.3 D. 302.4
Solve the problem.How close does the curve y = 
come to the point 
? (Hint: If you minimize the square of the distance, you can avoid square roots.)
A. The distance is minimized when x = - 
; the minimum distance is 
units.
B. The distance is minimized when x = 7; the minimum distance is 4 units.
C. The distance is minimized when x = 
; the minimum distance is 
units.
D. The distance is minimized when x = 3; the minimum distance is 4 units.