I'm guessing the repeating part is 89 at the end, so that

Then





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An arguably quicker way without using geometric series:




When the triangle is a right triangle, you can use the Pythagorean theorem. The formula would be
c^2 = a^2 + b^2
If a = 21 and c=29, thus
b^2 = c^2 - a^2
b^2 = 29^2 - 21^2
b^2 = 400
b = square root (400)
b = 20 units.
Thus, the answer is <span>D) B = 400</span>
Answer:
4.
Step-by-step explanation:
A and D are opposite.
A is in the negative side and d is in the positive side.
The answer would be A-72cm^2
Answer:
the mean is 6.
Step-by-step explanation: