-7+2 adding and subtracting integers

Step-by-step explanation:

-7 + 2 = -5

-7 + 2 = -5

Explanation:

All you need to do is to think about it like regular math. The lower the negative number is, the smaller it is. If we do addition we're adding to the number so (+2) just makes it 2 higher. So we get -5.

Hope this helps and have a nice day!

(sin 42)/31. = sinx)/37

sinx = 37 (sin42)/31

= 37× 0.66/31 = 0.787

x= 51.9

other angle opposite to y = 180-51.9-42

= 180- 93.9 =86.1

so

sin42)/31 = sin 86.1)/y

0.021 = 0.997 /y

y= 0.997/0.021 =47.47