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andrew11 [14]
3 years ago
5

Sheena wants to measure the volume of a ball that is 24 cm across. How should she set up her probleme

Mathematics
1 answer:
Dmitry [639]3 years ago
6 0
Volume of a sphere is 4/3 πr³

Volume of a ball = 3/4 π (24 ÷ 2)³
Volume of a ball = 3/4 π (12)³ 
Volume of a ball = 7238.23 cm³

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Answer: Volume of the ball = 7238.23 cm³
------------------------------------------------------------------------

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What is 75% of 35 feet?
AleksandrR [38]

Answer:

26.25 feet

Step-by-step explanation:

A percentage is simply a ratio of the whole.  If we assume 35 feet to be 100%, or the whole, then we can say the following:

0.75 * 35 == 26.25

Hence, 75% of 35 feet is 26.25 feet.

Cheers.

6 0
3 years ago
Which set of side lengths cannot form a triangle? (screen shot attached)
antoniya [11.8K]

Answer:

7in, 7in, and 15 in

Step-by-step explanation:

Based on the Triangle Inequality Theorem that states that the sum of any 2 sides of a triangle must be greater than the measure of the third side, we can find what set of lengths cannot form a triangle.

The only set that does not follow the theorem is the set with lengths 7in, 7in, and 15in. It does not follow the theorem because...

7 + 7 < 15 (which should not be true based on the theorem)

6 0
3 years ago
The vectors are linearly independent if and only if?
Alexeev081 [22]

The vectors are linearly independent if and only if k ≠ -11

<h3>How to solve the vector</h3>

In mathematics, the definition of a vector is a quantity that is made up of both magnitude and also have direction. This type of quantity is not one that is considered based on its position. A very good example of such a quantity with magnitude and direction is acceleration.

Vectors are used to represent items such as position, velocity, physical quantities and others in mathematics and in physics.

In this question,

We have 2v - 3w

We have to multiply 2 by the values of v and multiply 3 with the values of w

this would produce

[2,6,8]-[6,6,12]

subtract w from v

= [-4, 0, -4]

We u as -1, 0 and 10+k

It is not possible to -1 = 10 + k

-11 = k

Hence we have to conclude that they are linearly independent if and only if k ≠ -11

Read more on vectors here:

brainly.com/question/22363471

#SPJ1

6 0
2 years ago
(x-x)(x+1)-x ( x+2)<br> (x-1) (x^3+x^2+x+1)
olga2289 [7]

Answer:

−x^6−2x^5+x^2+2x

Step-by-step explanation:

3 0
3 years ago
Simplify.
vazorg [7]

Answer:

9a^2sqrt(ab)

Step-by-step explanation:

The first noticable thing is that 81 has a perfect square of 9.

So it is now 9sqrt(a^5b)

you can split the a^5, to a^4 × a.

you can now take the sqrt of a^4, which is a^2, and pull it out from the sqrt

You are now left with 9a^2sqrt(ab)

5 0
3 years ago
Read 2 more answers
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