Answer:
-61/4
Step-by-step explanation:
-1/2 + x = - 21/4 - 23/4 - 19/4
-1/2 + x = -(21+23+19)/4
x = -63/4 + 1/2
x= -63/4 + 2/4
x = -61/4
Hope that helps, tell me if you need further explanation. =)
Answer:
x=14
Step-by-step explanation:
The interior angles of a regular decagon are the same and add up to 1440.
10(10x+4)=1440
There are 133 calories in one 10 ounce bottle of apple juice.
Answer:
14 dollars 40 cents or $14.40
Step-by-step explanation:
18*.8 is 14.4
Answer:
83.96 (approximately)
Step-by-step explanation:
I am not completely sure what the problem is asking, just like the last one, but I believe that you are just supposed to take the inverse of cosine. So, in your calculator, make sure it is in degrees mode, then usually you have to click the 2nd key and then cosine. You use the inverse of cosine when two sides are given, but you are not given the angle.
It should look like:
, which is approximately 83.96.
Hopefully this is right, if not, please let me know. Good luck.