Helene is finding the sum (9 + 10i) + (-8 + 11i). She rewrites the sum as (-8 + 11) i + (9 + 10) i. Which statement explains the property of addition that she made an error in using?

A coin jar contains 12 quarters, 15 dimes, and 23 nickels. find the probability that a karen will choose a dime from the jar and then mikah will choose a quarter from the jar.

In a bag, there are only red, white and yellow counters. I am going to take a counter out of the bag at random. The probability that it will be red is more than 1 4 It is twice as likely to be white as red.

What 2 square numbers have a sum of 130

185 in.=_ft_in. how many are in the blanks

The number of multiple births in the united states for a recent year indicated that there were 128665 sets of twins, 7110 sets of triplets, 468 sets of quadruplets, and 85 sets of quintuplets. choose on set of siblings at random.

Jane is a better tennis player than Jack is. If the probability that Jane will beat Jack in any given game is 0.7, what is the probability that they will each win one game if they play two games

Maya is driving 120 miles to her grandmother's house. She drives 35% of the distance before stopping for lunch. How far does she drive before lunch?

How many decameters are there in 4.5 kilometres

What polyhedron can be formed from a net diagram that had 2 congruent hexagons and 6 congruent rectangles

Write the three forms of the distance formula.