Answer:
I think the answer is D because you cant find the other measures unless you have at least one angle measure but you don't so you cant determine the answer.
Step-by-step explanation:
Recall the Pythagorean identity,
Then we can rewrite the equation as
Factorize the left side.
Then we have
Solve for . We get two families of solutions:
and
(where is any integer)
Answer:
150ft^2
Step-by-step explanation: all you need is the base (15 feet) and the height (20 feet) multiply and you get 300. 300/2 (triangle area.) and you get 150ft^2
Okay dso if she got 15 points for 12 days then you would multiply them (or just add 15+15+15+15 and so on but multiplying is easier) then you are going to add 55 because of the thirteenth day.
15(12)=180
180+55=235 is how many you have.
now you are going to subtract 500 from that number to see how many more you need. :)