Answer:
-1.07
Step-by-step explanation:
–0.4(3x – 2) + 2x+4/3
–0.4(24 – 2) + 8+4/3
–0.4(24 – 2) + 8+4/3
-9.6-0.8+8+1.33
-2.4+1.33
-1.07
Answer:
B. Parallel
Step-by-step explanation:
Equation 1 simplified: y = 3x+7
Equation 2 simplified: y = -x/3-3
The slopes are completely different, ruling out the possibility of the lines being parallel.
But we also see the slopes of the equations are opposite and negative to each other. Making the lines perpendicular.
Answer:
27, 90 and 63
Step-by-step explanation:
Given
Ratio of triangle sides

Required:
The length of each side
Triangles in a triangle add up to 180.
The side with ratio 3 is:




The side with ratio 10 is:




Lastly:
The side with 7 as its ratio




Hence, the angles are: 27, 90 and 63
Substituting -3 for x, we have: (-3)^2-3*-3-7. This simplifies to 9+9-7, or 11.