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3 years ago

Finding volume of sphere when r=6

Mathematics

2 answers:

Pavlova-9 [17]3 years ago

5 0

Answer:

V = 904.78

Step-by-step explanation:

Volume of a Sphere = 4π $\frac{r^3}{3}$

=> V = 4π $\frac{6^3}{3}$

=> V = 4π $\frac{216}{3}$

=> V = 4π(72)

=> V = 904.78

Hope this helps!

beks73 [17]3 years ago

3 0

Answer:

905

Step-by-step explanation:

≈

904.77868

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Researchers ask a random sample of 1,001 adults nationwide whether they favor or oppose the legalization of marijuana. Fifty-fiv

natima [27]

Answer:

b. It will decrease by a factor of 2

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of $\pi$ , and a confidence interval $1-\alpha$ , we have the following confidence interval of proportions.

$\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}$

In which

z is the zscore that has a pvalue of $1 - \frac{\alpha}{2}$ .

The lower end of the interval is given by:

$\pi - z\sqrt{\frac{\pi(1-\pi)}{n}}$

The upper end of the interval is given by:

$\pi + z\sqrt{\frac{\pi(1-\pi)}{n}}$

The length of the interval is the subtraction of the upper end by the lower end, so it is:

$L = 2z\sqrt{\frac{\pi(1-\pi)}{n}}$

This means that the length is inverse proportional to the square root of the size of the sample.

So, if the sample size is multiplied by 4, the length of the interval is going to decrease by a factor of 2.

4 0

3 years ago

So im really confused by this and could use some help.

Otrada [13]

Answer:

Nancy fits the equation.

Step-by-step explanation:

I think they're asking which gorilla fits the equation.

2b - 15 = 605

Add 15 to both sides

2b=620

Divide both sides by 2

b=310

The only gorilla who weighs 310 pounds is Nancy.

5 0

4 years ago

50 POINTS FOR THIS AND BRAINLY IF YOU GET IT RIGHT

sashaice [31]

Answer:

p/(p+q) and r/(r+s)

Step-by-step explanation:

Refer to attached

Comparing sales by the ratio of sold to all or

Sales = sold / (remaining + sold)

Applying to our table:

New Labels: p/(p+q)
Old labels: r/(r+s)

Correct answer option is the last one

7 0

3 years ago

Read 2 more answers

4times 1 1/5 as a product of a mixed number

natka813 [3]

The answer is 24/5 or 4 4/5 but if it is 11 on 5, the answer would be 44/5 or 8 4/5

7 0

3 years ago

F(x)=X over x^3-2x^2+5x why will this have no zeros

Mumz [18]

If you evaluate directly this function at x=0, you'll see that you have a zero denominator.

Nevertheless, the only way for a fraction to equal zero is to have a zero numerator, i.e.

$\dfrac{x}{x^3-2x^2+5x}=0\iff x=0$

So, this function can't have zeroes, because the only point that would annihilate the numerator would annihilate the denominator as well.

Moreover, we have

$\displaystyle \lim_{x\to 0} \dfrac{x}{x^3-2x^2+5x} = \lim_{x\to 0} \dfrac{x}{x(x^2-2x+5)} = \lim_{x\to 0} \dfrac{1}{x^2-2x+5} = \dfrac{1}{5}$

So, we can't even extend with continuity this function in such a way that $f(0)=0$

5 0

3 years ago