Calculate the following percentages.
A)30% of 300
B)7.5% of 4.0 × 105
C)0.50% of 0.060
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B)3....
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Q59: What is the number of significant figures
Q60: Express the following numbers in scientific notation.
A)109,000
B)0.00065
C)61,000,000,000
D)26
E)0.00000720
Q61: Express the following in exponential form:
A)5765
B)0.000365
C)102,000
D)0.00000240
E)602,000,000,000
F)2000
Q62: Rewrite the following as ordinary numbers:
A)6.75 ×
Q63: Perform the following mathematical operations. Give the
Q65: Perform the following conversions within the metric
Q66: Perform the following conversions.
A)56 cm = _
Q67: Calculate the percentage by mass of the
Q68: Convert the following temperatures to the indicated
Q69: Express the following quantities in joules.
A)74.6 cal
B)1.45
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