Answer:
The radius of the circle needs to be measured for the whole circle meaning that if you subtract the two points from the circle's area you'd get the distance of the arc
Step-by-step explanation:
... no real roots.
If the Discriminant is less than zero, the roots are complex (that is, using imaginary numbers). Regular folk say such an equation has no solution.
The graph of this equation, a parabola, hovers above the x-axis. The solution of equaling it to 0 would find where it crosses the x-axis, but it doesn't!
Answer:
x=4
y=3
Step-by-step explanation:
-0.8x+1.3y=0.7,3.2x−2.5y=5.3
-0.8x+1.3y=0.7
x=−1.25(−1.3y+0.7)
x=1.625y−0.875
3.2(1.625y−0.875)−2.5y=5.3
5.2y−2.8−2.5y=5.3
2.7y−2.8=5.3
2.7y=8.1
y=3
x=1.625×3−0.875
x=<u> </u><u>39-7</u><u> </u>
8
x=4
Answer:
And the 95% confidence interval would be given (0.107;0.227).
Step-by-step explanation:
Information given
number of trees with signs of disease
the sample selected
the proportion of trees with signs of disease
The confidence interval for the true proportion would be given by this formula
For the 95% confidence interval the significance is
and
, and the critical value would be
And replacing we got:
And the 95% confidence interval would be given (0.107;0.227).