patelnishi05
patelnishi05 patelnishi05
  • 04-05-2020
  • Mathematics
contestada

Calculate the length of BC to the nearest tenth.

Calculate the length of BC to the nearest tenth class=

Respuesta :

PhantomWisdom PhantomWisdom
  • 09-05-2020

Answer:

BC = 3.9

Step-by-step explanation:

Let AC is h and BC is x. Firstly, using trigonometry we can find the value of h. So,

[tex]\sin\theta=\dfrac{2}{h}\\\\\sin(27)=\dfrac{2}{h}\\\\h=\dfrac{2}{\sin27}\\\\h=4.4[/tex]

Now using Pythagoras theorem to find the value of b. Such that,

[tex]x^2=4.4^2-2^2\\\\x=\sqrt{15.36} \\\\x=3.9[/tex]

So, length of BC is 3.9

Answer Link

Otras preguntas

express 245 as a product of its prime factors
M = y2 - y1 / x2 - x1What is the slope of line JK?A) 5/9B) 9/5C) -5/9D) -9/5
the measure of the energy of motion of particles of matter
“HOW DO WE KEEP LINCOLN’S PROMISE TO OUR VETERANS AND THEIR FAMILIES?”
The beginning of a river is called the _____. mouth source watershed tributary
The Brown Chest by John Updike (excerpt) The full contents of the chest never came quite clear, perhaps because he didn't want to know. His parents' college dip
Why is vinegar used in food preservation?
zoom in please I have another page
Which modern word does this etymological information most likely belong to? "the face," especially as expressing emotion, from Anglo-Fr. Chere "the face," O.Fr
6. Some scholars believe that people from Asia arrived in the Americas about 15,000 years ago. According to this theory, what was the reason these people came?