briannasukotjo briannasukotjo

22-01-2024
Mathematics

contestada

In A4BC, if mZA =78. AC = 17 meters, and AB = 9 meters, find BC.

In A4BC if mZA 78 AC 17 meters and AB 9 meters find BC class=

Respuesta :

karmenchong karmenchong

22-01-2024

Answer:

17.5 m

Step-by-step explanation:

BC² = AB² + AC² - 2(AB)(AC)cos∠A

= 9² + 17² - 2(9)(17)cos78°

= 306.38

BC = √306.38

= 17.5 m

Answer Link

Otras preguntas

The sum of the BLANK of the plane figure is called the perimeter

what are 2 ways in which inherited factors can affect a persons health?

patrick buys 12 bunches of bananas for $9 what will he pay for 8 bunches of bananas

How did the United States acquire part of Samoa?

consider the decimal 0.101001000100001000001...do u think this decimal represnts a rational number why or why not

What is 397,506 rounded to the nearest ten-thousand?

10 is what percent of 15

what is 11/14 minus 1/6 as a fraction

A example sentence of asyndeton?

Why do you think most native American groups did not form large empires like the Aztec and Inca did?