What does it mean when a researcher states that an observed effect or difference is significant with a confidence level of 99%?

Choose a number up to 1,000. Write the standard form and the expanded form of the number. Then use the number word in a sentence

What values are needed to make each expression a perfect square trinomial? x2 + 4x + x2 - 10x + Previous Activity

Consider the following steps for solving 3x^2

You draw one card from a 52 card deck then the card is replaced and the deck the deck is shuffled and your draw again find a the probability of drawing a red card each time

Andrew has already cycled 32 kilometers this year plus he plans to cycle 2 kilometers during each trip to work. After 5 trips to work, how many kilometers will Andrew have cycled in total?

Paul bought a discount card for the bus. The card allows him to buy daily bus passes for $1.70. After one month, Paul bought 12 passes and spent a total of $25.40. How much did he spend on the student discount card?

Have students write a story that can be solved by finding the sum of 506,211 and 424,809 have them solve the problem

Robert wants to put lights around of his deck. The deck is 49 feet long and 23 feet wide. How many yards of lights does he need?

What is the simplified form of the following expression?7m^2+6.5n-4n+2.5m^2-n

1.428571429 rounded to the nearest tenth