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cluponka [151]
3 years ago
8

Use patterns and properties to compute mentally 3,000 * 70

Mathematics
2 answers:
umka2103 [35]3 years ago
5 0
This should be simple.

So, just do 7*3.

7*3 = 21.
Then add however many 0s you see, so 4.

210,000.
<span>
</span><span>Your Answer:
</span>210,000
Romashka-Z-Leto [24]3 years ago
4 0
Well, 7*3= 21 so all you have to do is add the zeros to get: 210,000
:) 
Hope this helped!
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What is the lateral area of the cone? 10 yd and 12.1 yd
Harman [31]

Answer:

The lateral area will be "381 yd²". A further solution is provided below.

Step-by-step explanation:

The given values are:

Radius of cone,

r = 10 yd

Height of cone,

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As we know,

The lateral surface area of cone is:

=  \pi r L

On substituting the values, we get

=  \frac{22}{7}\times 10\times 12.1

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=  380.28 \ yd^2

0r,

=  381 \ yd^2

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3 years ago
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7nadin3 [17]

Answer:

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Step-by-step explanation:

hope this helps!

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uysha [10]
Y-.25 is your answer.
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serious [3.7K]

Answer:

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Step-by-step explanation:

To find the mean of a set of values, we must add them up and divide by the number of values.

Step 1, adding the values:

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Step 2, dividing by the # of terms:

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To the nearest kilogram, we can round 81.556 into 82.

The mean mass of the 9 men was \fbox{82} kg.

<em>I hope this helps! Let me know if you have any questions :)</em>

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