What is the value of a ^ 2 + 3b + c - 2d , when a = 3 , b = 8; c = 2, and d = 5 ? Enter your answer in the space below.

25

Step-by-step explanation:

Lets plug in the numbers into the equation:

Then slove as shown in the image.

you need more information to answer this question

step-by-step explanation:

(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