The answer is <span>1683.
Hope this helps.</span>
Answer:
good luck...
Step-by-step explanation:
Answer:
FALSE, 3(6z - 4) = 18z - 12
Step-by-step explanation:
In case A, as the error would be a difference of 1, the assumption could be mantained, but in case B the difference will be bigger, showing that the ratio is not 3:1 but 4:1.
<h3><u>Ratios</u></h3>
Given that a preliminary study was carried out to test the hypothesis that the ratio of white to dark herons on the island was 3:1, but A) a small census found 16 white morphs and 4 dark, to determine if the assumption of a 3 :1 ratio could be rejected, and B) to determine the same question if the census were larger with 160 white morphs and 40 dark, the following calculations must be made:
A)
- 3 + 1 = 4
- 16 + 4 = 20
- 4 = 20
- 3 = X
- 60 / 4 = X
- 15 = X
- Therefore, as the error would be a difference of 1, the assumption could be mantained.
B)
- 3 + 1 = 4
- 160 + 40 = 200
- 150 = 3:1
- In this case, the difference will be bigger, showing that the ratio is not 3:1 but 4:1.
Learn more about ratios in brainly.com/question/1504221
Answer:
(a)31.42 inches
(b)942.48 Square Inches
Step-by-step explanation:
Given a sector of a circle with the following dimensions:
Radius of the circle =60 inches
Central Angle of the sector =30°
(a)Arc Length
Arc Length ![=\dfrac{\theta}{360^\circ}X2\pi r](https://tex.z-dn.net/?f=%3D%5Cdfrac%7B%5Ctheta%7D%7B360%5E%5Ccirc%7DX2%5Cpi%20r)
![=\dfrac{30}{360^\circ}X2*60*\pi\\\\=10\pi\\\\=31.42$ Inches (correct to the nearest hundredth)](https://tex.z-dn.net/?f=%3D%5Cdfrac%7B30%7D%7B360%5E%5Ccirc%7DX2%2A60%2A%5Cpi%5C%5C%5C%5C%3D10%5Cpi%5C%5C%5C%5C%3D31.42%24%20Inches%20%28correct%20to%20the%20nearest%20hundredth%29)
(b)Area of the sector
Area of the sector ![=\dfrac{\theta}{360^\circ}X\pi r^2](https://tex.z-dn.net/?f=%3D%5Cdfrac%7B%5Ctheta%7D%7B360%5E%5Ccirc%7DX%5Cpi%20r%5E2)
![=\dfrac{30}{360^\circ}X\pi*60^2\\\\=300\pi\\\\=942.48$ Square Inches (correct to the nearest hundredth)](https://tex.z-dn.net/?f=%3D%5Cdfrac%7B30%7D%7B360%5E%5Ccirc%7DX%5Cpi%2A60%5E2%5C%5C%5C%5C%3D300%5Cpi%5C%5C%5C%5C%3D942.48%24%20Square%20Inches%20%28correct%20to%20the%20nearest%20hundredth%29)