Solve each of the problems below using the combinations and permutations formulas given in the lesson. Show all pertinent work for full credit. From a selection of 9 different colored notebooks, Tom can take a group of 3. How many groups of 3 did he have to choose from if repetition is allowed?

0.85 or 85%

step-by-step explanation:

1) divide 23 by 27

2) round the decimal to the nearest 10

3) so your answer would be 0.85 or 85%

hope this .

r3t40

the arc length is found by finding the circumference of the full circle (2xpixradius) and then dividing by 4 to find just one quarter of the circle (90 degrees).