Pretty sure the answer is 18
3^2+3^2=9+9=18 (with a square root)
Answer:
8 cookies were left and 72 were sold.
Step-by-step explanation:
64*1.25= 80
80*.9= 72
8
Okay so it is easiest to solve this problem by drawing it out. First draw Eliot and label it 6ft. Then draw the 2 floodlights on either side of him equal distances away and label them both 12 yds high. Label the distance between the floodlights 50yards. Then draw 2 diagonal lines one coming down on each side from Eliot's head to the bottom of the lights. You now have a triangle with one side labeled 6ft, one side labeled 25yds (50/2), and label the other side x. Then make sure you change the units so they are the same. Then use the pythagorean theorem to solve.