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Alexeev081 [22]
3 years ago
14

What's the best approximation for the area of a semi circle with a diameter of 11.8 feet?

Mathematics
1 answer:
IgorC [24]3 years ago
5 0
11.8/2 = 5.9
5.9 squared is <span>34.81 
34.81 multiplied by pi is </span>109.358840271
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Two numbers whose sum is 44 and whose product is a maximum
Mashcka [7]

Answer:

x = y = 22

Step-by-step explanation:

It would help to know your math course. Do you know any calculus? I'll assume not.

Equations

x + y = 44

Max = xy

Solution

y = 44 - x

Max = x (44 - x)                    Remove the brackets

Max = 44x - x^2                   Use the distributive property to take out - 1 on the right.

Max = - (x^2 - 44x )               Complete the square inside the brackets.

Max = - (x^2 - 44x + (44/2)^2 ) + (44 / 2)^2 . You have to understand this step. What you have done  is taken 1/2 the x term and squared it. You are trying to complete the square. You must compensate by adding that amount on the end of the equation. You add because of that minus sign outside the brackets. The number inside will be minus when the brackets are removed.

Max = -(x - 22)^2 + 484

The maximum occurs when x = 22. That's because - (x - 22) becomes 0.

If it is not zero it will be minus and that will subtract from 484

x + y = 44

xy = 484

When you solve this, you find that x = y = 22 If you need more detail, let me know.


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Answer pls <br> The hint part also
tatiyna
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Answer:
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What is the difference between a measure of the center and a measure of the spread?
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Step-by-step explanation:

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Step-by-step explanation:

Simplify 6 - 1 to 5.

8.3 \times 2.10 .5

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