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3 years ago

A volleyball has a radius of 9 inches. What is the exact value of the volume of the ball?

1 answer:

4 0

Hello!

to solve this problem, use the following equation

(4/3(3.141593))(9^3) = 3053.628059

so your final answer is:
the volume of the volleyball is 3053.628059

I hope this helps, and have a nice day.

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Matrix A = [6 -12 4 8]. What is matrix X if 1/2x=A?

Step2247 [10]

Answer:

$X = \left[\begin{array}{cccc}12&-24&8&16\end{array}\right]$

Step-by-step explanation:

A matrix is given by

$A = \left[\begin{array}{cccc}6&-12&4&8\end{array}\right]$

Now, we have to find the matrix X if $\frac{1}{2} X = A$

⇒ X = 2A

Now, multiplication of a constant with a matrix means multiplication with that constant with all the terms of the matrix.

So, $X = \left[\begin{array}{cccc}6 \times 2&-12 \times 2&4 \times 2&8 \times 2\end{array}\right]$

⇒ $X = \left[\begin{array}{cccc}12&-24&8&16\end{array}\right]$ (Answer)

4 0

3 years ago

Read 2 more answers

What is the approximate percent decrease when a fish count goes down from 850 to 500? The percent decrease is approximately 40%.

Korolek [52]

Answer:

<h2>The percent decrease is approximately 40%. </h2>

Step-by-step explanation:

Step one:

given data

initial count of fish= 850

final count of fish= 500

Required

% decrease

Step two:

% decrease= final-initial/initial*100

substitute

% decrease= 850-500/850*100

% decrease=350/850*100

% decrease= 0.41*100

% decrease= 40.1%

The percent decrease is approximately 40%.

7 0

3 years ago

Read 2 more answers

Two trains leave stations 374 miles apart at the same time and travel toward each other. One train travels at 95 miles per hour

sveta [45]

2 hrs and 12 min or 2.2 hrs

5 0

3 years ago

Penny joined a yoga studio that charges a $25 membership fee and $45 each month. Assume y = total cost and x = number of months.

Firlakuza [10]

Answer:

y=45x+25

Step-by-step explanation:

y=45x+25

25 is a one-time fee so it is at the end. 45 is the monthly fee so it goes in front of x.

3 0

3 years ago

Read 2 more answers

Complete the function remove_all(L, x) so that, given a list L and a target value x, it returns a copy of the list that excludes

tia_tia [17]

Answer:

Code is given below along with explanation and output.

Step-by-step explanation:

we can use the method of list comprehension to achieve the given task.

In a list comprehension, we create a sub-list of elements which satisfy specific conditions. the condition i !=x makes sure that x would be excluded in the modified list.

def remove_all(L, x):

return [i for i in L if i != x]

L = [1, 2, 3, 4, 5, 6, 4, 3, 2, 4 ]

print('Before =',L)

L = remove_all(L, 4)

print('After =',L)

Output:

Before = [1, 2, 3, 4, 5, 6, 4, 3, 2, 4]

After = [1, 2, 3, 5, 6, 3, 2]

As you can see we have successfully removed the multiple occurrence of x=4 while preserving the order of the list.

4 0

3 years ago