The variables aren't the same so no they are not alike
Answer:
X= 4c The absolute value you can find witht the equation |4c|
You can take x = a, 2y = b and then can apply the binomial theorem.
The expansion of given expression is given by:
Option D: is
<h3>What is binomial theorem?</h3>
It provides algebraic expansion of exponentiated(integer) binomial.
According to binomial theorem,
<h3>How to use binomial theorem for given expression?</h3>
Taking a = x, and b =2y, we have n = 7, thus:
Thus, Option D: is correct.
Learn more about binomial theorem here:
brainly.com/question/86555
Answer:
r = 29
Step-by-step explanation:
We assume your diagram is showing ...
<em>To find r, use the relationship between the side lengths of the triangle</em>.
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In a 30°-60°-90° triangle, the ratio of shortest to longest sides is 1 : 2. Therefore, we have ...
CD/CA = r/(r+29) = 1/2
2r = r +29 . . . . . . multiply by 2(r+29)
r = 29 . . . . . . . . . .subtract r
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The knowledge of 30°-60°-90° triangle relationships can come from any of several sources. One such source is consideration of what happens when you cut an equilateral triangle along its altitude. (The short side is half the long side of the resulting 30-60-90 triangle.)
Another source is the sine ratio of the 30° angle (trigonometry). Sin(30°) = CD/CA = 1/2.