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Naddika [18.5K]
3 years ago
11

A company is selling two different size medicine balls to a local colleges athletic department. The ratio of the ball diameters

is 15:11. If the diameter of the small ball is 55 cm, what is the volume of the larger ball.
Mathematics
2 answers:
dybincka [34]3 years ago
5 0

Answer:

D. 220,781.25 cm3

Step-by-step explanation:

Andru [333]3 years ago
3 0

Answer:

The volume of the larger ball would be 221,000

Step-by-step explanation:

In order to find this we first need to find the diameter of the new ball, we can do this by using a proportion.

15/11 = x/55

55*15 = 11* x

825 = 11x

75 = x

Now we take half of that for the diameter and then use that in the volume formula.

V = 4/3(pi)r^3

V = 4/3(pi)(37.5)^3

V = 221,000

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What is the value of |n|=5
nikdorinn [45]

Answer:

n = 5 or -5

Step-by-step explanation:

the absolute value is the count away from 0 so n could be 5 which is 5 units from 0 or -5 which is also 5 units away from 0.

7 0
3 years ago
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Solve the equation for y.Then find the value of y for the given value of x.<br>7x-xy=-18;x=-4.
guajiro [1.7K]
7x - xy = -18     x = -4
 
First, fill the -4 in where the "x's" are.

7<u>(-4)</u> - <u>(-4)</u>y = -18

Then, add the 28 over.

-28 + 4y = -18
<u>+28</u>           <u>+28

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Then, get the variable by itself, so you would divide the 4 over.

4y = 10
<u>÷4</u>    <u>÷4
</u>
<em><u>y = 2.5</u></em>
4 0
3 years ago
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An isotope of a radioactive element has half-life equal to 9 thousand years. Imagine a sample that is so old that most of its ra
valkas [14]

For this problem, we use the formula for radioactive decay which is expressed as follows:<span>

An = Aoe^-kt

where An is the amount left after time t, Ao is the initial amount and k is a constant. 

We calculate as follows:

An = Aoe^-kt
0.5 = e^-k(9000)
k = 7.7 x 10^-5

An = Aoe^-kt
.10 = e^-</span>7.7 x 10^-5<span>(t)
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8 0
4 years ago
Please Help!!! WILL GIVE BRAINLIEST!!!
kompoz [17]

Answer:

The correct statements are:

A) This polynomial has a degree of 2, so the equation x^{2}  + 4x + 4has exactly two roots.

B: The quadratic equation x^{2}  + 4x + 4 has one real solution, x=−2, and therefore has one real root with a multiplicity of 2.

Step-by-step explanation:

Here, the given polynomial is  f(x) = x^{2}  + 4x + 4

FUNDAMENTAL THEOREM OF ALGEBRA:

If P(x) is a polynomial of degree n ≥ 1, then P(x) = 0 has exactly n roots, including multiple and complex roots.

Now, here the given polynomial is a quadratic polynomial with degree 2.

So, by the fundamental theorem, f(x) has EXACTLY 2 roots including multiple and complex roots.

Now, solving the equation , we get that the only possible roots of the polynomial p(x) is x = -2 and x = -2

So, f(x) has only one distinct root x = -2 with a multiplicity 2.

Hence, the correct statements are:

A) This polynomial has a degree of 2, so the equation x^{2}  + 4x + 4has exactly two roots.

B: The quadratic equation x^{2}  + 4x + 4 has one real solution, x=−2, and therefore has one real root with a multiplicity of 2.

4 0
4 years ago
What are the solutions of the equation y = negative 2 x squared + 9 x minus 4 shown in the graph below?
aleksandr82 [10.1K]

Answer:the answer c

Step-by-step explanation:

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