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DaniilM [7]
3 years ago
12

Simplify the expression √39(√6+7)

Mathematics
1 answer:
IrinaVladis [17]3 years ago
3 0

The answer that I got is 3\sqrt{26} + \sqrt{273}

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An article in Knee Surgery, Sports Traumatology, Arthroscopy, "Arthroscopic meniscal repair with an absorbable screw: results an
igomit [66]

Answer:

Mean = 1.57

Variance=0.31

Step-by-step explanation:

To calculate the mean and the variance of the number of successful surgeries (X), we first have to enumerate the possible outcomes:

1) Both surgeries are successful (X=2).

P(e_1)=0.90*0.67=0.603

2) Left knee unsuccessful and right knee successful (X=1).

P(e_2)=(1-0.9)*0.67=0.1*0.67=0.067

3) Right knee unsuccessful and left knee successful (X=1).

P(e_3)=0.90*(1-0.67)=0.9*0.33=0.297

4) Both surgeries are unsuccessful (X=0).

P(e_4)=(1-0.90)*(1-0.67)=0.1*0.33=0.033

Then, the mean can be calculated as the expected value:

M=\sum p_iX_i=0.603*2+0.067*1+0.297*1+0.033*0\\\\M=1.206+0.067+0.297+0\\\\M=1.57

The variance can be calculated as:

V=\sum p_i(X_i-\bar{X})^2\\\\V=0.603(2-1.57)^2+(0.067+0.297)*(1-1.57)^2+0.033*(0-1.57)^2\\\\V=0.603*0.1849+0.364*0.3249+0.033*2.4649\\\\V=0.1115+0.1183+0.0813\\\\V=0.3111

3 0
3 years ago
Can you answer THIS one in the picture form
iVinArrow [24]

Answer:

this is what I got

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
Can someone help me with one or two questions??? Thanks :)
shusha [124]

Answer:

yoiu do the firdtone then the poopholestep explanation:

420 69

3 0
3 years ago
How do you do this problem??
ELEN [110]
It is a.
You multiply 9.3 and 2.5 together and get 23.25
Then just add the exponents 6+3 is 9
So the answer is 23.25 x 10^9
Hope this helps!!
7 0
2 years ago
What is another way of writing the following expression?
Nat2105 [25]
A. (3x7)+(3x4)
should be the correct one bc the other options dont get the same answer in the end
4 0
3 years ago
Read 2 more answers
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