devonzbest devonzbest

14-08-2020
Mathematics

contestada

Find BC. A. 22.5 in B. 29 in C. 30 in D. 28 in

Find BC A 225 in B 29 in C 30 in D 28 in class=

Respuesta :

eunice1234 eunice1234

14-08-2020

Answer: B. 29 mi (which you typed 29 in)

Step-by-step explanation:

Use law of cosine to solve: a²=b²+c²-2bc·cosA (the corresponding angle)

a²=19²+12²-2×19×12×cos (138)

a²=361+144-456cos(138)

a²=505-456cos(138)

a²=843.874 (rounded)

a=29 mi

Answer Link

Otras preguntas

The community health clinic you volunteer

ILL GIVE THE BRAINLIEST pls help me with this question EVERYTHING IS IN THE PICTURE PLS HELP DUE TODAY IF YOU PUT A WRONG ANSWER ILL REPORT YOU FASTER THAN AS

Find the Z-scores that separate the middle 61% of the distribution from the area in the tails of the standard normal distribution

PQR is an isosceles triangle with PR = PQ. (5x -4° (x + 52) Calculate the value of y.

What geography of Africa that would influence the development of civilizations.

The description of the Time Traveller's physical appeahonce most likely suggests that he

A group of children were asked if they like eating cupcakes or brownies. The table shows the probabilities of the results. Like cupcakes Do not like cupcakes T

In Spanish, how do you say “Karla is shy”? A. Karla es reservade. B. Karla es reservada. C. Karla es reservadosa. D. Karla es reservado.

dialoge between you and your friend who are talking about celebrating new year 2078

Hi! Please explain how you got the answer, thanks! :)