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3 years ago

How do i find the volume of a sphere radius 1/2

Mathematics

1 answer:

Ghella [55]3 years ago

6 0

Answer:

Ans is behind..........plz look it to get answer

Step-by-step explanation:

hope it helps uh

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Use the commutative law of addition to write a equivalent expression ab+c

Scilla [17]

Answer:

c + ab

Step-by-step explanation:

The way an expression is written is the given you have presented to us.

The commutative law of addition would turn it around as

c + ab.

It just means change the order when adding. Not all systems allow this. It matters which way you put it in some systems.

5 0

2 years ago

Index notation 4x4x4x5x5

hodyreva [135]

Answer:

1600

Step-by-step explanation:

6 0

2 years ago

Read 2 more answers

A randomly selected sample of n =51 men in Brazil had an average lifespan of 59 years. The standard deviation was 10 years. Calc

Aloiza [94]

Answer:

$59-2.40\frac{10}{\sqrt{51}}=55.639$

$59+ 2.40\frac{10}{\sqrt{51}}=62.361$

The 98% confidence interval would be given by (55.639;62.361)

Step-by-step explanation:

Information given

$\bar X= 59$ represent the sample mean

$s= 10$ represent the sample deviation

$n= 51$ represent the sample size

Solution to the problem

The confidence interval for the mean is given by the following formula:

$\bar X \pm t_{\alpha/2}\frac{s}{\sqrt{n}}$ (1)

The degrees of freedom are given by:

$df=n-1=51-1=50$

The Confidence is 0.98 or 98%, the significance would be $\alpha=0.02$ and $\alpha/2 =0.01$ ,and the critical value would be $t_{\alpha/2}=2.40$

And replacing we got:

$59-2.40\frac{10}{\sqrt{51}}=55.639$

$59+ 2.40\frac{10}{\sqrt{51}}=62.361$

The 98% confidence interval would be given by (55.639;62.361)

3 0

3 years ago

Which of the following numbers are greater than 10 and less than 15? Select all that apply.

Hoochie [10]

There is 50 which is greater than 10 but no number is less than 15

5 0

2 years ago

Read 2 more answers

What is the real numbers for a, radical a squared

Wittaler [7]

Answer:

$\sqrt{a^{2}}$ = a

Step-by-step explanation:

We have to evaluate the expression, 'Radical a squared'.

Now, radical means square root.

So, our expression becomes, 'Square root of 'a' square'.

That is, the expression is $\sqrt{a^{2}}$ .

We know that, the square root of some squared value is the value itself.

So, $\sqrt{a^{2}}$ = a

Hence, the real number for 'radical a squared' i.e. $\sqrt{a^{2}}$ is 'a'.

5 0

3 years ago