7. Draw a tape diagram to represent each situation. For some of the situations, you need to decide what to represent with a variable.

a. An art class charges each student $3 to attend plus a fee for supplies. Today, $20 was
collected for the 5 students attending the class.

b. Elena ran 20 miles this week, which was three times as far as Clare ran this week
Clare ran 5 more miles this week than she did last week.

Marie drew the triangle shown. she wants to draw a second triangle that is different from this one. use the drop-down menus below to complete the statements about the second triangle.

For which pair of functions is (gof)(a)=|a|-2?

The fraction of defective integrated circuits produced in a photolithography process is being studied. a random sample of 300 circuits is tested, revealing 17 defectives. (a) calculate a 95% two-sided confidence interval on the fraction of defective circuits produced by this particular tool. round the answers to 4 decimal places. less-than-or-equal-to p less-than-or-equal-to (b) calculate a 95% upper confidence bound on the fraction of defective circuits. round the answer to 4 decimal places. p less-than-or-equal-to