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iragen [17]
4 years ago
15

In △ABC, AD is the angle bisector of ∠A and BE is the angle bisector of ∠B. If AD intersects BE at point O, find m∠AOB given the

following: c m∠A +m∠B = 110° Quickly, I will award brainliest if given in 5 minutes
Mathematics
1 answer:
GREYUIT [131]4 years ago
7 0
I’m doing this too hopefully someone answers quick cause I’m confused also.
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Find a quadratic equation with roots -1, 4i and -1 - 4i
vazorg [7]
\bf \textit{difference of squares}
\\\\
(a-b)(a+b) = a^2-b^2\qquad \qquad 
a^2-b^2 = (a-b)(a+b)
\\\\\\
\textit{also recall that }i^2=-1\\\\
-------------------------------\\\\
\begin{cases}
x=-1+4i\implies &x+1-4i=0\\
x=-1-4i\implies &x+1+4i=0
\end{cases}
\\\\\\
(x+1-4i)(x+1+4i)=\stackrel{y}{0}
\\\\\\\
[(x+1)~~-~~(4i)][(x+1)~~+~~(4i)]=y
\\\\\\\
[(x+1)^2~~-~~(4i)^2]=0\implies (x^2+2x+1)~-~(4^2i^2)=y
\\\\\\
(x^2+2x+1)~-~(16\cdot -1)=y\implies (x^2+2x+1)~-~(-16)=y
\\\\\\
x^2+2x+1~~+16=y\implies x^2+2x+17=y
3 0
3 years ago
I need help on this :/ <br><br><br>Ignore my answer I accidentally clicked it
Ivanshal [37]
The answer is -4. I solved it on a calculator and got -4
6 0
3 years ago
Are the following lines parallel? <br><br> y = -3x + 1 <br><br> y = 4 - 3x
PIT_PIT [208]

Answer:

Simple! The answer is yes.

Step-by-step explanation:

Simply put the equations into Desmos graphing calculator and it will show you that the equations are parallel. :))

4 0
3 years ago
Can somebody help me with this question please ?
inysia [295]

Answer: No.

Step-by-step explanation: g should also be factored out. 10g(a - 3z).

4 0
3 years ago
Please help I don't understand the math language
NNADVOKAT [17]

Answer:

19

Step-by-step explanation:

3x+4 while x is 5 means (3*5)+4 so 15+4=19

If that's not what you wanted I am sorry.

8 0
3 years ago
Read 2 more answers
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