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3 years ago

The diameter of a sphere is 6 ft. Find the exact volume of the sphere.

Mathematics

2 answers:

PSYCHO15rus [73]3 years ago

7 0

Answer:

V ≈ 113.1ft³

Step-by-step explanation:

OleMash [197]3 years ago

6 0

Answer:

V ≈ 113.1ft³

Step-by-step explanation:

the answer is V ≈ 113.1ft³.

I hope this helps you.

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Scilla [17]

Answer:

Step-by-step explanation:

3 0

3 years ago

Simplify 3(x+2)-9x+5

Nimfa-mama [501]

It would be...
-6x+11

6 0

3 years ago

Read 2 more answers

Given that α and β are the roots of the quadratic equation <img src="https://tex.z-dn.net/?f=2x%5E%7B2%7D%20%2B6x-7%3Dp" id="Tex

siniylev [52]

Answer:

$\large \boxed{\sf \ \ \ p=-11 \ \ \ }$

Step-by-step explanation:

Hello,

$\alpha \text{ and } \beta \text{ are the roots of the following equation}$

$2x^2+6x-7=p$

It means that

$2\alpha^2+6\alpha-7=p \\\\2\beta ^2+6\beta -7=p \\\\$

And we know that

$\alpha= 2\cdot \beta$

So we got two equations

$2(2\beta)^2+6\cdot 2 \cdot \beta -7=p \\\\8\beta^2+12\beta -7=p\\\\ and \ 2\beta ^2+6\beta -7=p \ So \\\\\\8\beta^2+12\beta -7 = 2\beta ^2+6\beta -7\\\\6\beta^2+6\beta =0\\\\\beta(\beta+1)=0\\\\ \beta =0 \ or \ \beta=-1$

For $\beta =0, \ \ \alpha =0, \ \ p = -7$

For $\beta =-1, \ \ \alpha =-2, \ \ p= 2-6-7=-11, \ p=2*4-12-7=-11$

I assume that we are after two different roots so the solution for p is p=-11

b) $\alpha +2 =-2+2=0 \ and \ \beta+2=-1+2=1$

So a quadratic equation with the expected roots is

$x(x-1)=x^2-x$

Hope this helps.

Do not hesitate if you need further explanation.

Thank you

3 0

3 years ago

What is the equation of this line? y = 2x y=12x y=−2x y=−12x

Anna [14]

Y=2X

Looking at the line you can see that it is moving up from left to right, making it positive. So -2X and -12X are incorrect.

Next we can find the slope by putting rise over run. Chose a point on the line, I’ll use (2,4).
On this point we rise to 4 and run over to 2.
So for rise over run we have 4/2 which is 2.
So y=2x is correct.

6 0

3 years ago

Kylie plays softball on the merrick valley team she hits one out of every six balls pitched to her.if 32 balls have been pitched

Ganezh [65]

If 32 is divided by 6, the answer is 5.3. However because she cannot hit part of a ball, the number would be 5. Therefore, she would hit 5 out of 32 balls.

3 0

3 years ago