Hello:
<span>A= { 15, 25, 35, 45, 55, 65 } and B= { 25, 45, 65}
</span> A∪B = <span>{15, 25, 35, 45, 55, 65 } ....(answer : d )</span>
Answer:bals
Step-by-step explanation:25(number of hours worked) +80$ for initial charge
<span>If we add these two equations together, we can quickly follow the system via the elimination method as the y-terms cancel out.
Doing so results in 6x= -30, so x = -5. Plug this in and solve for y.
2*(-5) + 3y = -7, -10 + 3y = -7, 3y = 3, y = 1.
The solution is therefore (-5,1).</span>
A triangle's angles will always equal up to 180. Since you already have to of the angles, you will add them up together. 30+20=50. Then, you take 180 and subtract it by the sum of the two previous angles. 180-50=130. Now you know the last angle is 130. You also know that the missing angle is also 130. The reason for that is because the two angles are the exact same if you look at it.