Simplify (5х2 + 3х + 4) + (5х2 + 5х – 1). (1 point) o a
10х2+ 8х +5
Oь
25х2 + 8х + 3
Ос
10х2 + 8х + 3
Od
10х2 + 8x - 3

Two blends of tea are mixed to make a blend that will be sold at the fair. black tea sells for $2.20 per pound and orange pekoe tea sells for $3.00 per pound. how much of each should be used to obtain a 4lb blend selling for $2.50 per pound?

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

To which set of numbers does the number –5 belong? select all that apply. integers natural numbers rational numbers real numbers whole numbers