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salantis [7]
3 years ago
10

How many times can 9 go into 65

Mathematics
2 answers:
Rashid [163]3 years ago
8 0
I think the answer is 7. 
RUDIKE [14]3 years ago
7 0
65/9 is 7.2 so 7 times.
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kotykmax [81]

Answer:

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Step-by-step explanation:

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2 years ago
Thank you<br>if this helps​
Serhud [2]

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Step-by-step explanation:

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A golfer keeps track of his score for playing nine holes of golf​ (half a normal golf​ round). His mean score is 8080 with a sta
solniwko [45]

Answer:

Therefore the mean and standard deviation of his total score if he plays a full 18 holes are 160 and 11\sqrt2 respectively.

Step-by-step explanation:

Given that,

For the first 9 holes X:

E(X) = 80

SD(X)=13

For the second 9 holes Y:

E(Y) = 80

SD(Y)=13

For the sum W=X+Y, the following properties holds for means , variance and standard deviation :

E(W)=E(X)+E(Y)

     and

V(W)=V(X)+V(Y)

⇒SD²(W)=SD²(X)+SD²(Y)        [ Variance = (standard deviation)²]

\Rightarrow SD(W)=\sqrt{SD^2(X)+SD^2(Y)}

∴E(W)=E(X)+E(Y) = 80 +80=160

            and

∴SD(W)=\sqrt{SD^2(X)+SD^2(Y)}

              =\sqrt{11^2+11^2}

               =\sqrt{2.11^2}

               =11\sqrt2

Therefore the mean and standard deviation of his total score if he plays a full 18 holes are 160 and 11\sqrt2 respectively.

                                               

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3 years ago
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Answer:

the answer is 44cm3

Step-by-step explanation:

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1 year ago
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