9. A triangle has a perimeter of 90 centimeters.

a. Write and use a linear system to determine

the lengths of sides l, m, and n.

_=m-n

b. Is the triangle a right triangle? Explain.

m = 5n - 5

An official NHL hockey puck is shaped like a cylinder with a diameter of 3 inches and a volume of 7.1 cubic inches. What is the height of the hockey puck?

Betty has 70 beads she uses ate beans for each bracelet she makes as many bracelets as possible how many beads will Betty have left over

The probability of getting a head when a biased coin is tossed is 2/5. The coin is tossed three times. Find the following probabilities and select the correct solution. P (three tails) =. P (two tails followed by one head) =.

Karen is in a singing competition and needs an average score of 9.7 to make it to the next round. There are four judges. The first three judges gave scores of 9.9, 9.8, and 9.

What is x in 2 (x+6) = 14

Martha is planting a flower garden. She has planted 5 daisies for every 7 tulips. She has planted a total of 36 flowers. How many tulips are planted in the garden

In a certain city, the temperature normally ranges from 20 degrees Fahrenheit and 80 degrees Fahrenheit. Write a compound inequality that describes abnormal temperature ranges for this city and then convert that inequality to degrees Celsius.

Using the order operations rule, solving: 12:2+4-2*3=

X2+8x+15 zero product property

Angela is renting a truck to move. The rental company charges $25 plus $10 per hour to rent the truck. Angela wants to spend no more than $75. What constraints apply to this situation? What is the maximum number of hours Angela can rent the truck?