Solve cos (3x+15) = 0.8

The manager of a department store wants to determine the proportion of customers who use the store's credit card when making a purchase. What sample size should he select so that at 96% confidence the error will not be more than 10%? a. 106. b. 76.

500 tickets are sold for a prize draw. The probability is 1/20. How many did he buy?

Select all that apply. With wich information can you construct more than one triangle with. 1. the measurement of two angles 2. the measurement of two angles and the length of the included side 3. the measurements of all the right angles 4.

The area of triangle is one half times the base b times the height h

A pirate's treasure chest is recovered. Every crew member is promised one item from the chest chosen at random by the first mate. In the chest are 6 rubies, 27 diamonds, 2 sapphires, 12 strands of pearls, 42 silver coins, and 7 gold coins.

Samatha has 24 cards. Chelsea saw 15 more cards than Samatha. How many cards does Chelsea have?

3≤m+1.4 solve each inequality

Give an example of three random events X, Y, Z for which any pair are independent but all three are not mutually independent.

A sandbox is 1 1/3 feet tall, 1 5/8 feet wide, and 4 1/2 feet long. hiw many cubic feet of sand will it hold

How much time does it take for a squirrel to run 134 meters at a speed of 12 meters per second?