For his craft project, James bought 101010 pieces of ribbon that were each 2.1\text{ feet}2.1 feet2, point, 1, start text, space, f, e, e, t, end text long. How many total yards of ribbon did James buy?

9514 1404 393

  7

Step-by-step explanation:

The total length of ribbon is ...

  (10)(2.1 ft) = 21 ft

There are 3 feet in a yard, so the number of yards is ...

  (21 ft)×(1 yd)/(3 ft) = 7 yd

answer: do you still need this?

step-by-step explanation:

x^2 -12x + 36 + y^2 = 36

x^2 + y^2 = 12x

r^2 = 12rcos(theta)

r = 12 cos(theta)