When solving an equation, Carmen's first step is shown below. Which property justifies Carmen's first step? \text{Original Equation:}
Original Equation:
-2(7x^2-1)+6 =
−2(7x
2
−1)+6=
\,\, 8x^2-10
8x
2
−10
\text{First Step:}
First Step:
(7x^2-1)-3 =
(7x
2
−1)−3=
\,\, -4x^2+5
−4x
2
+5

(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

answer: its the third option.

step-by-step explanation:

i just took the test.

2 1/2 feet

step-by-step explanation: