You estimate that there are 80 marbles in a jar. the actual amount is 76 marbles. find the percent error. round to the nearest tenth of a percent if necessary.

What constants do you need to add to each of the following quadratic equations to complete the square? 2x2 - 3x = 0 x2 - 8x = 0 2x2 - 11x = 18

How many grams must be adde to 970g to make 1 and a half kg

Logan wants to know how many skateboards have defective parts. he inspects 20,000 skateboards and keeps track of the number of defects per board. use his probability distribution table to find the expected value for defects on a skateboard.