The mean is 21. The median is 15. The mode is 15. The range is 16.
<span>So we need to explain how we know 21/30 is greater than 2/3. Well lets expand 2/3 by multiplying the numerator and the denumerator by 10. That way we get 20 / 30. Since 21/30 has 1/30 more than 20/30 we can clearly see that 21/30 is greater than 20/30 or 2/3.</span>
The difference between the length of arc BD and CE is 1.57 units
<h3>Length of an arc</h3>
length of arc = ∅ / 360 × 2πr
where
- r = radius
- ∅ = central angle
Therefore,
BD = 45 / 360 × 2 × 3.14 × 6 = 1695.6 / 360 = 4.71 units
CE = 45 / 360 × 2 × 3.14 × 8 = 2260.8 / 360 = 6.28 units
Therefore, the difference between the length of arc BD and CE is as follows:
6.28 - 4.71 = 1.57 units
learn more on length of arc here: brainly.com/question/3984590
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The answer is 1.067. Hope it's not too late.
<em>x = 4</em>
- Step-by-step explanation:
<em>√x-3 + √x+5 = 4</em>
<em>(√x-3)² = (4-√x+5)²</em>
<em>x-3 = 16 - 8√x+5 + x+5 | -x</em>
<em>- 3 = 21 - 8√x+5</em>
<em>- 24 = - 8√x+5 | ×(-1)</em>
<em>24 = 8√x+5 | : 8</em>
<em>3 = √x+5</em>
<em>3² = (√x+5)²</em>
<em>9 = x + 5</em>
<em>x = 4</em>
