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olga nikolaevna [1]
2 years ago
12

May I get help on these questions, please?

Mathematics
1 answer:
Virty [35]2 years ago
5 0
Hello! here are the basic rules that you need to know to solve these problems:

a diameter is 2 × the radius
the circumference rule is 2×π×radius

I will solve the first question to show how to format.

1: 5/2=2.5
2×2.5×π=5×π=15.7
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Find two positive numbers whose product is 36 and whose sum is a minimum.
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Let one of the numbers be x. The other number cab then be represented as 36-x (x+36-x = 36).
The product can then be represented as y = x(36-x) or y=36x-x2

The maximum or minimum is always on the axis of symmetry which has the formula x=-b/2a.
In our case, the axis of symmetry is -36/-2, so x=18.

If one number is 18 and the 2 numbers add to 36, the other number is 18 as well.
So the 2 numbers are 18 and 18 and the maximum product is 324,
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2 years ago
What is the equation of the line passing through points (1,1) and (3,-5)
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Step-by-step explanation:

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3 years ago
A regular polygon has an interior angle of approximately 158.8°.
Step2247 [10]

Answer:

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Step-by-step explanation:

<u>Property of regular polygons:</u>

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<u>In our case we have:</u>

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What is the ratio of 280/420 in its simplest form?
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1/2 one half

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1/2 one half

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