2 years ago

The dimension of a laying block is 6m ×4m×2m .find the total surface area of the block

Mathematics

1 answer:

olasank [31]2 years ago

3 0

See attachment for math work and answer.

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How to expand (50 + b)5

Elina [12.6K]

(50+ b)5
= 5* (50+ b) (commutative property)
= 5* 50+ 5* b (distributive property)
= 250+ 5b
= 5b+ 250

The final answer is 5b+ 250.

Hope it helps.

3 0

3 years ago

5. Aaron has sewn three square tablecloths of different sizes. He determines the length

victus00 [196]

Answer:

Step-by-step explanation:

square root of 18 is 4.2426 so round that and it is 4

8 0

3 years ago

How to use the results of part (b) and appropriate computation formulas to compute the sample variances s2 and sample standard d

anygoal [31]

$s^2=\displaystyle\sum\frac{(x-\bar x)^2}{n-1}=\frac1{n-1}\sum(x^2-2x\bar x+{\bar x}^2)=\frac{\displaystyle\sum x^2-2\bar x\sum x+{\bar x}^2}{n-1}$

where $\bar x=22$ is the mean. Since

$\sum x^2=2568$
$\sum x=110$

you have variance

$s^2=\dfrac{2568-2(22)(110)+22^2}{5-1}=37$

and so the standard deiviation is

$s=\sqrt{37}\approx6.083$