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

List two types. Of organelles
compare 1/2 with 3/4 using ( <,>,=)
Circle the letter of the best SYNONYM 1. a placid​river a. sluggish b. polluted c. peaceful d. pathetic e. raging
Which planet has a thick atmosphere of mainly hydrogen and helium due to conditions during the formation of the planets? a. Mercury b. Mars c. Neptune d. Ve
For an ideal gas, classify the following pairs of properties as directly or inversely proportional? For an ideal gas, classify the following pairs of properties
What is the difference between an ectothermic and a endotherm.Which are classified as humans
What event in 1911 focused attention on the need to protect factory workers? A. The Spanish-American War B. The Galveston hurricane C. The Triangle S
Martha is buying a house for $107,820. She is making 15 percent down payment and financing the remainder at 6.5 percent for 25 years. How much is she financing?
which of the following describes an effect of the spanish-american war
what does how many mean in math