Barbara is planning a party. she invited some school friends and 2 times as many friends from her swimming club as school friends. if a total of 21 friends came to her party, how many school friends did she invite

Use the discriminant to decide how many solutions the given equation will have. Show all work for credit. 6x^2-2x=3

Can 10X+5 equal 5X=10

Plot the value on the number line where this function is equal to zero f (x) = (x+5) (x-1)

For a normal distribution, what percentage of values lies within two standard deviations of the mean? a. 99.7% b. 97% c. 68% d. 95%

A jet airliner flies 4,100 km from New York City to San Francisco in 4.25 h. What is its average speed?

On a map, 1/3 inch equals 15 miles. The distance between two towns on a map is 3 2/3 inches. How many miles are actually between the two towns? a. 11 b. 16 c. 88 d. 132 e. 165

A copy machine makes 24 copies per minute. how many copies does it make in 5 minutes and 30 seconds

A man wants to take a goat a bag of cabbage and a wolf over to an island his boat will only hold him and one animal or item if the goat is left with the cabbage he'll eat it, it the wolf is left with the goat he'll eat it.

Does adding values that are much greater or much less than the other values in a set of data affect the median of the set

Nina says the equation 600 = 12X50 means 600 is 12 times as many as 50. Julio says the equation means 600 is 50 times as many as 12. Who is correct? explain