Help me solve 8/100 + 9/10 =

Mathematics

2 answers:

NARA [144]3 years ago

8 0

If you type it in the calculator, it's .98.

Delvig [45]3 years ago

7 0

49/50 is your answer in simplest form.

First you got to make it the same denominator.
8/100+90/100=98/100.
Simplify it and it will be 49/50.

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If the scale factor between two circles is 2x/5y, what is the ratio of their areas?

Zinaida [17]

Given that the length ratio between the radii of the two circles is (2 · x) / (5 · y). The ratio of the areas of the two circles is (4 · x²) / (25 · y²).

<h3>What is the area ratio of two circles?</h3>

According to the statement we know that the radius ratio between two circles. Given that the area of the circle is directly proportional to the square of its radius, then the area ratio is shown below:

A ∝ r²

A = k · r²

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A' / A = r'² / r²

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Given that the length ratio between the radii of the two circles is (2 · x) / (5 · y). The ratio of the areas of the two circles is (4 · x²) / (25 · y²).

To learn more on ratios: brainly.com/question/13419413

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2 years ago

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yanalaym [24]

Answer:

Step-by-step explanation:

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Please refer to the graph below. We are concerned with the red region.

In order to find the volume, we essentially sum up the area of the figure at each x value. So, we integrate from x = 0 to x = 1.

The area for an equilateral triangle is given by:

$\displaystyle A=\frac{\sqrt{3}}{4}s^2$