A 90-foot wire runs from the top of a cell phone tower to the ground 63 feet from the base of the tower. approximately how tall
1 answer:
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Hi, there.
For this question, we can apply the Pythagorean theorem .
I'm sure you've seen this equation before, and they kind of tried to trip you up with this problem. Trust me, it's easier than it looks. Let's break it down.
Lengths a and b both have the value of 48, which means that the value s in is 48, because the length of the hypotenuse is the same as the length and height squared multiplied by 2.
Plug in the value for c:
Plug in the value for s:
Do the innermost exponents first:
The square root symbol and the power of 2 cancel each other out, so we are left with:
s = , so the hypotenuse is 4608 inches.
The center of the circle that circumscribe about DABC is .
A circle can be modelled after a expression of the form:
(1)
We can determine all coefficients by knowing three <em>distinct</em> points on plane.
If we know that ,
and
, then the solution of the system of linear equations is:
(2)
(3)
(4)
Now we proceed to <em>complete</em> squares and factor each resulting perfect square trinomial in order to determine the coordinates of the center of the circle:
The center of the circle that circumscribe about DABC is .
To learn more on circles, we kindly invite to check this verified question: brainly.com/question/11833983
Answer:
Option A
Step-by-step explanation:
we know that
To divide complex numbers, you must multiply by the conjugate.
we have
To find the conjugate, change the sign between the two terms in the denominator
so