spookyrevenge
spookyrevenge spookyrevenge
  • 11-08-2017
  • Mathematics
contestada

PLEASE HELP! URGENT!
write and solve an equation to calculate the value of the variable

PLEASE HELP URGENT write and solve an equation to calculate the value of the variable class=

Respuesta :

mreijepatmat
mreijepatmat mreijepatmat
  • 11-08-2017
a) sin 15° = (opposite side)/(hypotenuse)

sin 15° = x/20, but sin 15° = 0.25881
0.25881 = x/20 → x = 0.25881.(20) → x = 5.17
 
b) cos Ф° = adjacent side/hypotenuse

cos Ф° = 10/11 → cos Ф° = 0.9090.

cos⁻¹(0.9090) = Ф°  → Ф° = 24.62°

Answer Link

Otras preguntas

Edward deposited $6,000 into a savings account 5 years ago. The simple interest rate is 3%. How much money did Edward earn in interest?
In a group of dogs and their owners, there are exactly 20 heads and 64 legs. How many dogs are in the group
2. Why are unicellular organisms considered organisms? Exp
by the eve of the civil war, free blacks in the south were allowed to own:
What's your favourite scary movie?
Last year, Derek's mother gave him 53 blue stamps and 36 red stamps to start a stamp collection. Now Derek has 4 times as many stamps in his collection How many
X+3y=24 Please solve super fast
What stage of the writing process is the right one for fixing sentence fragments? A.writing the first draft B.prewriting C.reviewing your teacher's comments D.r
Jason swims at a constant speed of 5 feet per second and gets a 30 second head start over Frank. How fast must Frank swim in order to reach 300 yards at the sam
when using hootsuite’s bulk composer, how far in advance must your posts be scheduled ahead of when the csv file is uploaded into hootsuite?