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3 years ago

Help I need this done soon!!! Thank you!!

Mathematics

1 answer:

jenyasd209 [6]3 years ago

4 0

D is the midpoint of segment AC, Given
Segment AD is congruent to segment CD, Definition of Midpoint
Angle BDC is congruent to angle BDA, Given
Segment BD is congrent to angle BD, Reflexive property of congruence
Triangle ABD is congruent to triangle CBD, SAS

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13) -4= -b -1/3b and -23/3= 1/2a + 5/3a

Sergeeva-Olga [200]

-4=-1b-(1/3)b

-4=-(4/3)b

-4/-(4/3)=b

b=3

-------------------------------

(1/2)3+(5/3)2

3/6+10/6=13/6

-23/3=13/6a

(-23/3)/(13/6)=a

a=-46/13

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3 years ago

Quadratic formula to find the zeros b^2-4b+4=0

Lunna [17]

Answer:

Step-by-step explanation:

Remark

I don't think you need the quadratic formula for this equation. It just factors into (b - 2)(b - 2), but I'll do it because you requested it.

Formula

$\text{x = }\dfrac{ -b \pm \sqrt{b^{2} - 4ac } }{2a}$

Givens

a = 1

b = - 4

c = 4

Solution

x = - - 4 +/- sqrt((-4^2) - 4*1*4)

====================

2*1

x = 4 +/- sqrt (16 - 16)

==========

x = 4/2

x = 2

There are 2 roots but both of them are the same. Some teachers say there is only 1 root. I'm in that group.

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3 years ago

Please help me with this problem! y = 37 39 51

nika2105 [10]

y = arctan(8/10)

y = 38.65

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What is the measure of G?

allsm [11]

The measure of G is 28 because it is an isosceles triangle

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3 years ago

CAN SOMEBODY PLEASE HELP ME???? I DONT UNDERSTAND AT ALL AND I NEED HELP PLEASE THANK YOU IF YOU CAN HELP ME!!!!!

Dominik [7]

I can give you a link https://youtu.be/aUy-_WnEV30 . I hope this answers your problem, and gives you greater insight. Sorry I couldn't do more :(

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3 years ago