Jim and Maria run a city relay race. The race consists of 8 laps around a planned city route. Jim runs 3 of the laps
at an average speed that is 0.5 mile per hour faster than
Maria's average speed for the remaining 5 laps. What is
Jim and Maria's combined race time? Let r represent
Maria's average speed.

Question 7 of 47 1 point what is the equation of a line with a slope of 1/2 that passes through the point, (-2,5)? o a. 1/2x+3 o b. y=1/2x+5 o c. y=x+5 o d. y=1/2x+6

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

How do i put 3(x+7) in distributive property