You have to use Pythagorean's theorem to find the missing side measure. 41^2=40^2 + w^2. 1681 = 1600 + w^2. 1681-1600=w^2. 81=w^2 and w = 9. That's an odd triangle, but accurate! Now use the cos definition of cos x = 9/41, and cos x = .2195. Now use the inverse function on your calculator in degree mode to see that the angle x is 77.3 degrees.
Answer:
5,470 mg
Step-by-step explanation:
108 minutes is 4 half-lives:
<u> Time</u> <u> Lead</u>
<u> Min.</u> <u>mg Pb</u>
0 87520
27 43760
54 21880
81 10940
108 5470
Answer:
Because in the previous step we proved that two triangles were congruent, the answer is CPCTC.
18
you just multiply 6 by 3 because 4 is being multiplied by 3 as well to get $12
Answer:

Step-by-step explanation:
because i know math isn't wrong Hope this helps XD lol