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Anna [14]
3 years ago
12

Is the square root of 21 is an irratoinal number true or false explain

Mathematics
1 answer:
MrRa [10]3 years ago
3 0

Yes it is because it has no square factors.

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the sum of 2 numbers is 7 the larger number is 16 more than 2 times the smaller number what are the numbers
EastWind [94]

Answer:

x=larger no

y= smaller no

Step-by-step explanation:

x+y=7--------(1)

x=16 + 2y------(2)

(2)--->(1)

16+2y+y = 7

3y + 16 = 7

3y = -9

y = -3//

so x=10

7 0
3 years ago
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Which fraction has the greatest value?<br> 1/15<br> 1/20<br> 1/10
Alecsey [184]
1\10 has the greatest value as it is the smallest number diving one
3 0
4 years ago
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What is the standard deviation of this data set?<br> 12, 14, 9, 11, 10, 15, 16, 12, 7, 14
Tju [1.3M]

Answer:

The standard deviation is 2.6832815729997

Step-by-step explanation:

SD^2=(12-12)^2+...+(14-12)^2/10

SD^2=72/10

SD^2=7.2

SD=squeare root of 7.2

SD=2.6832815729997

4 0
3 years ago
1/3nr^2h;r=6,h=4 <br> Can someone help me
zhannawk [14.2K]
It’s 150.2

Correct me if I’m wrong

6 0
3 years ago
Carl wants to find the product 30×56.
ozzi

Answer:

Your answer will be D. He knows that 30 × 16 is 5 then multiples 5 by 5 to get 25.

4 0
3 years ago
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