All categories

3 years ago

URGENT ANSWER FAST PLEASE

Mathematics

1 answer:

xeze [42]3 years ago

7 0

410.3ft^3. is correct

volume of the sphere with 3ft radius :
$\frac{4 \times \pi \times 3 \times 3 \times 3}{3} = 113$

volume of the sphere with 5ft radius:
$\frac{4 \times \pi \times 5 \times 5 \times 5}{3} = \frac{1570}{3} = 523.3$

difference
$523.3 - 113 = 410.3$

good luck

You might be interested in

the volume of two similar prisms are 891 cm and 33cm. the surface area of the larger prism is 153cm. what is the surface area on

oee [108]

[891/33=27] ratio of the two prism: hencesurface area of smaller prism is[153/27]=5.67cm

6 0

3 years ago

Read 2 more answers

Write the expression in complete factored form <br><br> 3p^2(q+3)-4(q+3)

Tresset [83]

If you factored this the outcome would be,

(q+3)(3p^2-4)

6 0

2 years ago

Write an algebraic expression for the word expression. the quotient of 10 times m and 7

Makovka662 [10]

Answer:

10m/7

Step-by-step explanation:

quotient means division so 10 times m is 10m

and then we will divide 10m and 7

10m/7

please mark as brainliest

8 0

2 years ago

What is the quotient of -8(^6)/4x(^-3)

Anna [14]

For this case we must find the quotient of the following expression:

$\frac {-8x ^ 6} {4x ^ {- 3}} =$

By definition of power properties we have:

$a ^ {- 1} = \frac {1} {a ^ 1} = \frac {1} {a}$

Rewriting the expression we have:

$\frac{-8}{4}*x^6*x^3$

By definition of multiplication of powers of the same base we have to put the same base and add the exponents:

$-2x^{6+3}$

Answer:

$-2x ^ 9$

8 0

3 years ago

If a=i+7j+k and b=i+11j+k, find a unit vector with positive first coordinate orthogonal to both a and

Scilla [17]

Take the cross product, then normalize the result.

$\mathbf a\times\mathbf b=\begin{vmatrix}\mathbf i&\mathbf j&\mathbf k\\1&7&1\\1&11&1\end{vmatrix}=-4\,\mathbf i+4\,\mathbf k$

This has norm

$\|\mathbf a\times\mathbf b\|=\sqrt{(-4)^2+4^2}=4\sqrt2$

and so a unit vector orthogonal to both given vectors is

$\dfrac{\mathbf a\times\mathbf b}{\|\mathbf a\times\mathbf b\|}=-\dfrac1{\sqrt2}\,\mathbf i+\dfrac1{\sqrt2}\,\mathbf k$

An equally correct answer would be the negative of this vector, since $\mathbf b\times\mathbf a=-\mathbf a\times\mathbf b$ .

5 0

3 years ago