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Nataly_w [17]
3 years ago
5

If a gold bar has a length of 17.78 cm, a width of 9.208 cm, a height of 4.445 cm, and the density of gold is 19.3 g/cm^3, what

is the
mass of the gold bar. Answer with the correct number of significant figures. Use the rounding rules.

A. 1.40x10^4 grams
B. 14 040 grams
C. 14 045.142 grams
D. 14 045 grams
Mathematics
1 answer:
kozerog [31]3 years ago
4 0

Answer:

17.78×9.208×4.445=727.7275768

D=mass÷volume

mass=density×volume

mass=19.3g/cm3×727,7275768=14045,14223224=14045grams

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All three of them do exist on the line y = 2.5x + 4

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First we need to find the slope. 
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So now we know A and C form the line y = 2.5x + 4. We can then check if B fits that line. 

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4 years ago
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inessss [21]

Answer:

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Answer:

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4 0
4 years ago
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