What number should be added to the expression x^2 + 4x to change it into a perfect square trinomial?
2 answers:
You might be interested in
Answer: The length of the shorter side is inches (option C).
Step-by-step explanation:
- The ratio of the original picture is
.
- The ratio of the <em>new</em> picture is
.
- In order to get the longest side to 4, we divided by 3. As a result, we must divide 4 (the original shorter side) by 3 to find the new length.
=
Answer:
- <u><em>The y-coordinate should be </em></u>
<u><em></em></u>
Step-by-step explanation:
The red point is in the third quadrant where both x and y coordinates are negative.
The first number of an ordered pair is the x-coordinate, and the second number is the y-coordinate.
The point that <em>Bernardette</em> wrote has x-coordinate -5 and y-coordinate
.
To find the<em> x-coordinate</em> of the red point, you go straight up, vertically up, until to you get the <em>x-axys,</em> then read the mark where you intercepted the axis. In this case it is -5. Hence, the x-coordinate of the point that Bernardette wrote is correct.
To find the <em>y-coordinate </em>of the red point, you move horizontally to the right until you get the y-axis. Then, read the mark. In this case it is halfway between -3 and -4. That is . Hence, the correct choice is the last one: The y-coordinate should be
.