√x^2+16=x+4
"3" x^2+16=x+4
"3"
Draw Dienes block to show how to find the solution to 78 + 56
You have 80 grams of a radioactive kind of tellurium. How much will be left after 8 months if its half-life is 2 months?
You have 80 grams of a radioactive kind of tellurium. How much will be left after 8 months if its half-life is 2 months?
1/2x2/3x3/4x4/5x9/10
25/x<10
X/2 + x/3 >17/6
3x-29<7x+11
2x1^2+4x1x2+5x2^2