If it was 20% OFF, then Lisa paid 80% of the original price
80% x $ 50 = . 8 x 50 = $ 40.
6x^2 - -5x^2 = 11x^2
-x -10x = -11x
3- -1 = 4 11x^2 -11x+4
By brute force I find 352 trees
I started with multiples of 8 that were 2 more than a multiple of 10 .....then tried subtracting one to see if 9 would divide evenly.
Area of a triangle = 1/2 b * h
Area = 215 h = 4b + 3
215 =1/2 b * h
215 = 1/2 b * (4b+3) solve for 'b' then h = 4b+3
cos = adjacent / hypotenuse you will need to calculate the hypotenuse first ...using pythagorean theorem...
what do you find for the hypotenuse length?
sin = opposite / hypotenuse
tan = opposite/adjacent
csc= 1/sin
Hmmmmm...... how do you make a perfect square with 49 pennies?
We just showed you how to do these....try it
pick two convenient points. The first graph: -5,-4. And. 5,0
y1-y2. /. x1-x2. Is slope. Same way for the others....
You're welcome!
two sides are 4.5 9cm
smaller arc pi x d x 50/360 = pi x 7 x 50/360 cm
larger arc pi x d x 50/360 = pi x 16 x 50/360 cm
Add the reds to get total perimeter................
