It's dark. You have ten grey socks and ten blue socks you want to put into pairs. All socks are exactly the same except for their colour. How many socks would you need to take with you to ensure you had at least a pair?

Which year comes midway between 1591 and 1951?

The base of a right pyramid is a regular hexagon with sides of length 12 m. The altitude is 6 m. Find the total surface area of the pyramid.

The radius of the circle is 3 millimeters. What is the circle's circumference? Use 3.14 for it -3 mm A 18.84 B 28.26 C 254.34 D 9.42

Grace starts with 100 milligrams of a radioactive substance. The amount of the substance decreases by each week for a number of weeks, w. She writes the expression 100 (-) w to find the amount of radioactive substance remaining after w weeks.

1.) What is the product of (7u+6v) (7u-6v) ? 2.) What is the product of (-m+5n) (-m-5n) ?

If you roll a standard number cube 65 times, how many times do you expect the cube to show an even number? Round the measure to the nearest whole number

Sound waves are emitted from a fishing boat. Some of the sound waves are reflected by fish and detected back at the boat. The shortest time between the sound waves being emitted and detected is 0.26 s. The speed of sound in water is 1500 m/s.

To make orange paint, Pedro mixes red paint and yellow paint in the ratio 3:2. If he uses 8.5 gallons of yellow paint, how many gallons of red paint does he use?

In which of these examples, binomial distribution can be used? a) Finding the best month to launch a new product b) Accurately predicting who will be promoted at work c) Predicting the score of a cricket match d) Probability of getting a certain

Translate. "The quantity x minus 2y, plus 3" a. 3 (x - 2y) b. (x - 2y) + 3 c. 2y + 3 d. 2y - 3 e. 2 (y + 3)