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Lana71 [14]
3 years ago
5

If m∠ABD = 70° and m∠CBD = 30°, then m∠ABC = ?

Mathematics
1 answer:
Rufina [12.5K]3 years ago
4 0
If it’s on a straight line then the answer should be 80
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Given: RE = 2AR and RT = 2GR<br> Prove : ∆GAR ~ ∆TER
marysya [2.9K]

Answer:

Statement:-                   Reason:-

  • RE=2AR                  Given
  • RT=2GR

---------

  • ∠DRA≅∠TRE      Vertical angles

---------

  • RE/AR=RT/GR        proportionality of sides  

---------

  • ΔGAR≈ΔTER            SAS similarity theorem        
<h3><u>-------------------------</u></h3><h3><u>Hope it helps...</u></h3><h3><u>Have a great day!! </u></h3>
5 0
3 years ago
Can someone PLEASE help?? asap
castortr0y [4]

Step-by-step explanation:

sin(s+t) = sin(s)+cos(t) which results

(sin(s)×cos(t))/(cos(s)cos(t)) + (cos(s)×sin(t))/(cos(s)cos(t))

knowing that tan=sin/cos and that cos/cos=1 and sin/sin=1

resulting tan s ×1 + tan t × 1 = tan s + tan t

7 0
2 years ago
Halp meeeeehhhhhh DDDD:
adoni [48]

i think it might be 256

6 0
4 years ago
Read 2 more answers
URGENTTTTTTTTTTTTT!!!!!!!!!!!
mrs_skeptik [129]

3^3 + 2^7

Step-by-step explanation:

There really is no other way that I can think of other than guessing and checking. 3^3 is 27, when subtracted from 155 gives you 128. 128 can be rewritten as 2^7, leaving your final answer as 3^3 +2^7.

"taken from MrScienceguy"

5 0
3 years ago
Read 2 more answers
-x + 48 = 17 what os the value of x
strojnjashka [21]

Answer:

x=31

Step-by-step explanation:

we need to isolate x so we put 48 t the other side to make -x=17-48

we do 17-48 =-31 so -x=-31

x=31

4 0
3 years ago
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