A cylindrical can hold three tennis balls. The height of the stacked balls is 9 inches.

Mathematics

2 answers:

worty [1.4K]4 years ago

5 0

The answer to ur question is A 33%

nata0808 [166]4 years ago

5 0

Since there are 3 and assuming that they're the same size each radius is 1.5, as is the radius of the base of the cylinder. So you have to figure out the volume of one of the balls and multiply it by three. Formula: (4/3) * pi * radius^3. The volume of all three is 42.42. Then you need to find the volume of the cylinder. formula: pi * h * r^2. So it is 63.62. You now take this measure and subtract the volume of the three balls: 21.2in^3. To find the percentage, take 21.2/63.62. Then multiply by 100. The answer is 33.32, so your final answer is A.

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fgiga [73]

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3 years ago

What are the domain and range of the function f(x) = 3x + 5? domain: (negative infinity, infinity); range: (0, infinity) domain:

AlekseyPX

Answer:

Domain : (-∞,∞) Range : (-∞,∞)

Step-by-step explanation:

Given:

f(x) = 3x+5

To find: Domain and Range of f(x)

Domain is the set of values that x can take.

Range is the set of values of y corresponding to the values of x in the domain.

Here x can take any value and the domain is the set of real numbers i.e (-∞,∞).

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Read 2 more answers

Hey can you please help me posted picture of question

Leni [432]

Answer:
(x+4)(x+5) = 0

Explanation:
The standard form of the quadratic equation is:
ax² + bx + c = 0

The given equation is:
x² + 20 = -9x
Adding 9x to both sides would make us reach the standard form which would be:
x² + 9x + 20 = 0
By comparison:
a = 1
b = 9
c = 20

To factor the equation, we would need to use the quadratic formula shown in the attached image.

By substitution, we ould find that:
either x = $\frac{-9+ \sqrt{(9)^2-4(1)(20)} }{2(1)} = -4$

This means that the first factor is (x+4)

or x = $\frac{-9+ \sqrt{(9)^2-4(1)(20)} }{2(1)} = -5$

This means that the second factor is (x+5)

Based on the above, the factored form of the equation would be:
(x+4)(x+5) = 0

Hope this helps :)