Is triangle abc a right triangle? why or why not?
a. no, triangle abc is not a right triangle, because ac would have to be 2 sq rt of 10
b. no, triangle abc is not a right triangle, because ac would have to be 5 sq rt of 3
c. no, triangle abc is not a right triangle, because ac would have to be 40.
d. yes, triangle abc is a right triangle by the pythagorean theorem.

What is the point-slope equation of a line with slope -5 that contains the point (6,3)

The jewelry store is having a sale. necklaces that were regularly priced at $23.50 are on sale for $18.80. what is the percentage of decrease in the price of necklaces?

Kevin has a spinner that has 10 equal sections and 2 sections of each color—red, blue, green, yellow, and purple. kevin spins the spinner 180 times. kevin determines about how many times the spinner will land on red or green, and his work is shown below. -kevin has the formula reversed; it should be the total number of sections over the number of red or green sections. -kevin should have used a 4 in the numerator because there are 2 red sections and 2 green sections. -kevin should multiply by the number of sections in the spinner rather than the total number of spins. -kevin calculated the prediction correctly and did not make any mistakes.