Emileee

Use u = 5x-2 to write an integral equivalent to fnInt((x^2)(5x-2)^(1/2), x, 0, 3) Sorry I had to write it using calculator notation because i can't make a definite integral on my computer.

Use the slope formula Y2-Y1/X2-X1 to find the slope and then insert that for m in the slope intercept for y = mx+b then plug in one of the sets of values for y and x to find b. i can solve it for you if you want...

(-4)-(-3)/(3)-(2)=-1 y=-1x+b -3=-1(2)+b -3=-2+b -1=b y=-x-1

angle A = 6

you can use the sum and difference rules cos15 = cos (45-30) = cos45*cos30 + sin45*sin30 sin15 = sin (45-30) = sin45*cos30 - cos45*sin30 45 and 30 are the common trig values to know

is that good?