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ololo11 [35]
2 years ago
9

Help Its due in 3 mins I will give brainliest

Mathematics
2 answers:
Dafna1 [17]2 years ago
8 0

Answer:

144

Step-by-step explanation:

I am Lyosha [343]2 years ago
4 0

Answer:

144 yd^2

Step-by-step explanation:

(9x12)+(6x6)

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Can you help me with Math
Nonamiya [84]

Answer:

42+106=x

148=x

Step-by-step explanation:

8 0
2 years ago
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A group of 14 people, of which 8 are male and 6 are female is picking a four person committee. How many ways can they pick the f
Vesna [10]

Answer:

35 ways

Step-by-step explanation:

7×6×5×4. 7×6×5×4

--------------. = --------------. = 35

1x2×3×4. 1×2×3×4

4 0
3 years ago
It takes 60 minutes for 7 people to paint 5 walls.
ziro4ka [17]
0.7/1 of a wall per person
3 0
3 years ago
Do bonds reduce the overall risk of an investment portfolio? Let x be a random variable representing annual percent return for t
rjkz [21]

Answer:

COV (all stocks) = 0.55

COV (stocks and bonds) = 0.82

Step-by-step explanation:

Coefficient of Variation is used to measure variability.

It is defined as the ration of standard deviation and the mean.

It can be used to compare variability of two population or two samples.

Formula:

\text{Coefficient of Variation} = \displaystyle\frac{\text{Standard Deviation}}{\text{Mean}}

\text{Standard Deviation} = \sqrt{\displaystyle\frac{\sum (x_i -\bar{x})^2}{n-1}}

where x_i are data points, \bar{x} is the mean and n is the number of observations.

Mean = \displaystyle\frac{\text{Sum of all observations}}{\text{Total number of observation}}

x: 14, 0, 39, 25, 32, 27, 28, 14, 14, 15

Mean = \frac{208}{10} = 20.8

Standard~Deviation = \sqrt{\frac{1169.6}{9} } = 11.39

Coefficient~of~Variation = \frac{11.39}{20.8} = 0.55

y = 6, 2, 29, 17, 26, 17, 17, 2, 3, 5

Mean = \frac{124}{10} = 12.4

Standard~Deviation = \sqrt{\frac{924.4}{9} } = 10.13

Coefficient~of~Variation = \frac{10.13}{12.4} = 0.82%

Since coefficient of variation of x is less compared to y, thus it could be said bonds does not reduce overall risk of an investment portfolio.

6 0
3 years ago
In a lab experiment, 50 bacteria are placed in a petri dish. The conditions are such that the number of bacteria is able to doub
timurjin [86]
Divide 50 and 20 and you get 2.5 then multiply that with 8 and you’ll get 20
THE ANSWER IS 20
8 0
3 years ago
Read 2 more answers
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