Substitution is when you plug in one value of a variable into an equation. In this case the value of y is given. Plug (x+ 6) into the equation: y=-2x - 3
You should get something like this: x + 6 = -2x - 3 From there you can add 2x to both sides, and subtract 6 from both sides to get this: 3x = -9 Divide both sides by 3 x = -3 Now that you have the value for x, plug -3 into the equation y = x + 6
y = -3 + 6 = 3
The final answer is D) {-3,3}
*btw in case you didn't know this, the first number in an ordered pair is "x" while the second is "y"
Angle W and Y are right angles and equal to 90 degrees each. Angle z and angle x are same side interior angles and they have a sum of 180 degrees because of the same side interior angles postulate.
so W= 90 Y=90 X+Z= 180 . so 90+180+90 =360 degrees. B.
A tree that is 100 feet tall casts a shadow that is 150 feet long ...
The angle at which the ray of the sun hit the ground is that which has a tangent equal to 100 / 150 or 2/3. This angle is equal to 33.69. Thus, the answer is letter B. 34°
