Write the number in scientific notation.2,100,000
A. 2.1 × 10-7
B. 2.1 × 107
C. 2.1 × 10-6
D. 2.1 × 106
Answer: D
Mathematics
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?
?
A. 
B. 
C. 
D. 
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Using the exponential key of a calculator to find an approximation to the nearest thousandth.2.5071.9
A. 4.998 B. 4.763 C. 6.285 D. 5.733
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Find a formula for Ak, given that A = PDP-1, where P and D are given below.A = 
, P = 
, D = 
A. 
B. 
C. 
D. 
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Determine whether the statement is true or false.A fraction whose numerator and denominator are two different prime numbers cannot be simplified.
A. True B. False
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