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Aleks [24]
3 years ago
8

What is the correct answer in significant figures for the calculation of a volume (in mL) with measured numbers 28.58 / 16 X 8.0

2 ? [28.58 (as numerator)] divided by [(16 times 8.02 )as denominator]
Mathematics
1 answer:
juin [17]3 years ago
4 0

Answer: 0.2223mL

Step-by-step explanation:

Since the maximum significant figure in question is 4sf, our answer will be converted to 4sf.

Calculating 28.58/16×8.02 = 0.222377

= 0.2223mL to 4 significant figures

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monitta

Answer:

5.8

Step-by-step explanation:

To get the mean, add up all the numbers

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Then divide by how many numbers there are (5)

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The mean is 5.8

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3 years ago
if a motercycle is moving at a constant speed down the highway of 40 km/hr, how long would it the motorcycle to travel 10 km
ahrayia [7]

Answer:

15 minutes

Step-by-step explanation:

First, the motorcycle goes at a speed of 40 km/hr.

The question asks for how long it would take to travel 10 km.

Well, there are 60 minutes in an hour, since we will be translating into minutes.

Also, 10 km is 1/4 of 40 km, so it would make sense that the time length would be 1/4 of an hour as well.

1/4 of 60 minutes is 15 minutes.  So it takes 15 minutes for the motorcycle to travel 10 km.

Now, if all this wordy stuff is too much to comprehend, you can also solve using proportional relationships.

\frac{40km}{60min}=\frac{10km}{xmin}

Now cross multiply:

40km*xmin=10km*60min\\40x=600

Divide both sides by 40:

\frac{40x}{40}=\frac{600}{40}\\x=15

Again, this shows that it wouls take 15 minutes for the motorcycle to travel 10 km.

6 0
3 years ago
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alekssr [168]

Answer:

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Step-by-step explanation:

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3 years ago
Which algebraic expression is a polynomial with a degree of 2?
Tpy6a [65]

Answer:

D

Step-by-step explanation:

The highest power of X in D is 2; hence we see

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7 0
3 years ago
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6 0
2 years ago
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