To find the total number of butterflies we add 9 and 7, which equals 16 butterflies in all. Then we take the queen butterfly part of the ratio, which is 7 and compare it with the total number of butterflies to get the ratio 7:16.
Answer: 18.24 cm^2
Step-by-step explanation:
the two 135 degree angles indicate that the third angle (the one with the shaded region) is 90 degrees, which means that the shaded region is within 1/4 of the circle.
1. In order to find the area for that 1/4 region, you would have to find the area of the circle and divide it by 12
[r^2(3.14)]/4 pi is substituted by 3.14, and the radius is 8.
50.24 is the area of 1/4 of the circle.
2. Next you'd have to find the area of the triangle formed by the shaded region, and subtract the triangle from the area of the 1/4 circle.
the triangle is an isoceles triangle with two sides each valuing at 8cm, so to find the area of the triangle you would multiply the two sides (or square them since they're the same number) and divide by two
this means the triangle is 32 cm^2
3. we can subtract the 1/4 circle (50.24) by the area of the triangle (32) to get the area of the shaded region, which is <u>18.24 cm^2</u>
Answer:
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Step-by-step explanation:
- 11 students
- 26 students
- that 2 small divisions =1 unit =1 student
Step-by-step explanation:
Hey, there!
Here,
Given that:
![= 25 {x}^{2} - 4](https://tex.z-dn.net/?f=%20%3D%2025%20%7Bx%7D%5E%7B2%7D%20%20-%204)
we need to find factor,
As it is in a^2-b^2 form as per its factor (a+b) (a-b), keeping same formula here,
25x^2 means (5x)^2
and 4 means 2^2
Now, it would be,
![= ( {5x)}^{2} - {2}^{2}](https://tex.z-dn.net/?f=%20%3D%20%28%20%7B5x%29%7D%5E%7B2%7D%20%20-%20%20%7B2%7D%5E%7B2%7D%20)
![= (5x + 2)(5x - 2)](https://tex.z-dn.net/?f=%20%3D%20%285x%20%2B%202%29%285x%20-%202%29)
Therefore, it's factor would be (5x+2)(5x-2).
<em><u>Hope it helps</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em>