There are 580 students at Alejandro's school. He surveys a random sample of 60 students and finds that 21 of them regularly bring their lunch Based on these results, estimate how many students at Alejandro's school regularly bring their lunch
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Hint
Identify the sample and the population, and write a sample ratio of favorable outcomes in sample to samples
students

The lines shown below are parallel. if the green line has a slope of -1, what is the slope of the red line

To find the extreme values of a function f(x.y) on a curve x-x(t), y y(t), treat f as a function of the single variable t and use the chain rule to find where df/dt is zero. in any other single-variable case, the extreme values of f are then found among the values at the critical points (points where df/dt is zero or fails to exist), and endpoints of the parameter domain. find the absolute maximum and minimum values of the following function on the given curves. use the parametric equations x=2cos t, y 2 sin t functions: curves: i) the semicircle x4,y20 i) the quarter circle x2+y-4, x20, y20 b, g(x,y)=xy

The measures of the angles in △abc are given by the expressions in the table. angle measure angle a 65° angle b (3x−10)° angle c (2x)∘ find the value of x. then find the m∠b and m∠c.