Solve the problem.The mass of a certain atom is 0.0000000000000000000000019 grams. Rewrite this quantity in scientific notation.

A. 1.9 × 10-24
B. 1.9 × 10-25
C. 1.9 × 10-23
D. 19 × 10-24

Answer: A

Mathematics

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Give the specific equation relating the variables after evaluating the constant of proportionality for the given set of values.A varies jointly as F and G and inversely as H, and A = 20 when   and 

A. A = 
B. A = 
C. A = 2FGH
D. A = 

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Mathematics

Write a formula for the nth term of the given geometric sequence. Do not use a recursion formula.- , - , - , - , ...

A. an = n - 1 + 
B. an = - n - 1
C. an = -  + (n - 1)
D. an = -  + (n - 1)

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Mathematics

Determine whether the following is a trinomial square.x2 - 8x - 16

A. Yes B. No

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Mathematics

Evaluate.

A. 10,000
B.
C. 100
D. 10

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Mathematics