Answer:
x=-4
Step-by-step explanation:
The ratio of their area is 9/4
<h2>
Explanation:</h2>
We use ratios to compares values. In this exercise, we are comparing the circumference of two circles, which is:

and we want to know what is the ratio of their area. Recall that the circumference of a circle is given by:

If we define:

Then, the ratio of the circumference of two circles is 3:2 is:

The area of a circle is given by:

So the ratio of their area can be found as:

So:

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Answer:
11 + 13i
Step-by-step explanation:
A must know is that

Complex numbers
1st: foil the equations


2nd Combine like terms and substitute



Answer:
Yes,
Step-by-step explanation:
because two sides are shown equal to each other, a and b. Also two angles are equal to each other, x and y. Once you know two angles or two sides are equal so is the third side.
Another way is SAS (side angle side). There is side a, angle y, and side b. These are shown on both triangles.
Therefore, we can conclude these two triangles are congruent.
Answer:
-6.5 is a rational number.