kaitlynmelton kaitlynmelton

20-06-2017
Mathematics

contestada

If angle A equals 30 degrees, then find the length of BC when AB is 6 and AC is 7.

Respuesta :

20-06-2017

By the Law of Cosines, (a^2=b^2+c^2-2bc*cosA°)

BC=6^2+7^2-2*6*7*cos30°

BC=85-84cos30° units

BC≈12.25 units (to nearest hundredth of a unit)

Answer Link

ACCESS MORE ACCESS MORE ACCESS MORE ACCESS MORE

Otras preguntas

what is the solutin for math and reading class if so what is the answer and why

4. Suppose matrix \( A=\left[\begin{array}{cccc}1 & -2 & 3 & 0 \\ -3 & 1 & 0 & -1 \\ 2 & 0 & 2 & 4 \\ 4 & 3 & -1 &am

In noisy areas due to traffic, how do white crowned sparrows overcome background noise so that their songs are heard? 1) They sing at a higher volume 2) They si

In the early ______'s, the _____ government offered $_ _, _ _ _ to anyone who could develop a ____________ or __________ ___________ ____________ along the ____

Which is a noise that is an interference that is external to both speaker and listener; it interferes with the physical transmission of the signal or message?

write an essay about the topic family comes firstly

Transmission errors occur randomly and independently in time and can be modelled as a Poisson random variable. Let X = the number of transmission errors per uni

A sea anemone releases eggs into the water at the same time nearby sea anemones are releasing sperm into the water, so many of the resulting zygotes will be gen

- Vocabulary What is the difference between a unit cube and a cubic unit?

The Sapir-Whorf hypothesis is the basis for the _____ position on language and perception.a. modified relativistb. relativistc. coculturald. nominalist