fhdjjskksj fhdjjskksj
  • 03-08-2020
  • Mathematics
contestada

Find C and round to the nearest tenth.

Find C and round to the nearest tenth class=

Respuesta :

shaleenparikh1
shaleenparikh1 shaleenparikh1
  • 03-08-2020
We know all the side lengths so can use law of cosines. a=90, b=55, and c=50.
2500=8100+3025-2(90)(55)cos(C)
cos(C)=.8712
C=arccos(.8712)=29.4 degrees
Answer Link
lilynguyen53
lilynguyen53 lilynguyen53
  • 03-08-2020

Answer:

29.4 degrees

Step-by-step explanation:

i divided sin by 55 degrees

Answer Link

Otras preguntas

Find the area of the triangle in terms of x
what instruments where listed in ancient texts
A balanced chemical equation used to prepare ammonium carbonate, (nh4)2co3 , is: 2 n h 3 ( g ) + c o 2 ( g ) + h 2 o ( l ) ⟶ ( n h 4 ) 2 c o 3 which choice of r
simplify 2^2[4+(3-6)^2]-13
The first step in developing a policy to address the rising cost of college is? A. Using rhetoric B. Conducting research C. Using persuasive language D. Writi
How many molecules of sodium oxide will be created if 187 grams of oxygen reacts with excess sodium? 4Na + O2 -> 2Na2O A. 11.69 x 1023 molecules of Na2O
where do presidential candidates campaign the most
how much does a cardiologist surgeon who has done 6 years of residency earns in Australia(in US dollar)??​
which point best approximates the square root of 45?
Please Help Me =) ----------------------------