Ken predicts that the average temperature will be -5°C in December. If he predicts the temper January and fall 3°C in February, which of the following equations can he use to find the sum
those months? Check all that apply.
[6 + 3] + 5 = 14
0 (-5) + [3 +6] =-4
[(-5) + (-3)] + 6 = -2
5+[(-6) + (-3)] = -4
[6+ (-5)] + (-3) = -2
[(-5)+6] +(-3) = 4

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

Each month, a shopkeeper spends 5x + 14 dollars on rent and electricity. if he spends 3x−5 dollars on rent, how much does he spend on electricity? for which value(s) of x is the amount the shopkeeper spends on electricity less than $100? explain how you found the value(s).

What is the absolute value of the complex number -4-sqrt2i