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

Is the sequence 5, 9, 15... an arthimetic sequence
I need help solving number 5!! Just work and then final answer needed, thank you!
One way to improve food security is to avoid food spoilage. Identify the correct ways that Devon reduced food spoilage in the passage.
How do you find the answers for 3-24
The Philadelphia Nativist Riots of 1844 began because of anger toward the city'sA. african american residentsB.irish catholicc.germanD. quaker
The product of the slopes of perpendicular lines is −1. Which function represents a line that is perpendicular to y = −6x + 7?
Evaluate the attitudes of western european countries and the us toward imperialism
A 2-pound box of spaghetti costs $2.50. Phillip says that the unit cost is 2÷$2.50= $0.80 per pound. Explain his error.
name explain the three levels of economic activity....Help?
PLEASE!!! WILL THUMBS UP ALL COMMENTS!!!! 6. Which of the following is not a cause of economic problems? productivity the money supply government spendi