Iris made bracelets with string and beads. She used x centimeters of string to make 7 bracelets. She used 17.8 centimeters of string for each bracelet. How much string did she use in all? Write an equation and use it to solve this problem.

What basic trigonometric identity would you use to verify that sin x cos x tan x =1-cos^(2)x?

Two streets intersect at a 30- degree angle. at the intersection, the are four crosswalks formed that are the same length. what type of quadrilateral is formed by the crosswalks?

How many of the 250 grandparents in the population would you expect to prefer online shopping with merchant a? merchant a: 4 merchant b: 6 merchant c: 2 merchant d: 3 other: 5 none: 5 answer choices: a. about 4 b. about 8 c. about 40 d. about 21