<span>Multiply the second equation by −4 to get −16x − 4y = −80 and </span>Multiply the first equation by 2 to get 4x + 8y = 28 both creates <span>an equivalent system such that, when combined with the other equation, one of the variables is eliminated</span>
Answer:
Option B.(4,-4)
Step-by-step explanation:
we know that
1) An angle 45 degrees means that the absolute value of the x-coordinate of the point on the terminal side is equal to the absolute value of the y-coordinate of the point on the terminal side
2) An angle of -45 degrees lies on the IV Quadrant
That means------> The x-coordinate is positive and the y-coordinate is negative
therefore
The point on the terminal sides of -45 degrees is the point (4,-4)
Answer:
Step-by-step explanation:
An isosceles triangle has 2 sides that are the same length. Let's say that our triangle has the 2 sides measuring the same and the base is a different length. The vertex angle is the top angle. By the definition of an isosceles triangle, since the 2 sides measure the same length, then the angles across from those sides have the same degree measure. If we know the measure of the vertex angle, then we have
180 = vertex angle - base angle - base angle
but since the base angles are the same and we have 2 of them, then
180 = vertex angle - 2 base angles
For example, if the vertex angle measures 80 degrees, then 180 - 80 = 100. That 100 has to be split in half for each of the base angles which are the same as each other. So the vertex angle is 80 and each base is 50.
Answer:
3 spaces backwards, if you still need it.
Step-by-step explanation:
