99% confidence interval contains 99% of the population. It is wider than 95% confidence. (Confidence intervals contain the mean)
Answer:
AB=sqrt(53)
Step-by-step explanation:
consider the right angle triangle of the top rectangle w sides of 6 n 4
diagonal^2 = 6^2 + 4^2
consider the right angle triangle of the diagonal, AB and 1
AB^2 = diagonal^2 + 1^2
= 6^2 + 4^2 + 1^2
= 36 + 16 + 1
=53
AB=sqrt(53)
ans is a
Huh? 5x100 = 500. Is that the question
<em>The first equation can be multiplied by 5 and the second equation by 3.</em>
<em>3x - 3y = 3 | × 5</em>
<em>4x + 5y = 13 | × 3</em>
<em />
<em>15x - 15y = 15</em>
<em>12x + 15y = 39 + </em>
<em>________________</em>
<em>15x + 12x - 15y + 15y = 15 + 39</em>
<em>27x = 54</em>
<em>x = 54 : 27</em>
<em>x = 2</em>
<em />
<em>4·2 + 5y = 13</em>
<em>5y = 13 - 8</em>
<em>5y = 5</em>
<em>y = 5 ; 5</em>
<em>y = 1</em>