Simplify. Write the answer in standard form.(2.1 × 10-3)(9 × 10-2)
A. 0.00000189
B. 0.0000189
C. 0.00189
D. 0.000189
Answer: D
Mathematics
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Provide an appropriate response.Find the standard deviation of the following: 54, 89, 77, 54, 32, 49, 72 Round answer to tenths.
Fill in the blank(s) with the appropriate word(s).
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Multiply. Do not simplify.
? 
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.The number of students infected with the flu on a college campus after t days is modeled by the function 
When will the number of infected students be 220?
A. About 8 days B. About 16 days C. About 14 days D. About 12 days
Mathematics
Multiply.(5x + 6)2
A. 5x2 + 60x + 36 B. 25x2 + 60x + 36 C. 5x2 + 36 D. 25x2 + 36
Mathematics