jaylynnsykes13
Answered

Find the best answers to your questions at Westonci.ca, where experts and enthusiasts provide accurate, reliable information. Experience the convenience of getting reliable answers to your questions from a vast network of knowledgeable experts. Join our platform to connect with experts ready to provide precise answers to your questions in different areas.

Please.

Find BC. If AB = x, BC = 8x-4 and AC =77°.
​

Sagot :

CrazyMoosen

Answer:

91 1/9

Step-by-step explanation:

Because this is clearly a triangle, the total number of degrees all the angles add up to is 180 degrees. In this scenario, we have [tex]x+(8x-4)+77=180[/tex]

Combining like terms, we have [tex]9x-4+77=180[/tex]

Combining like terms again, we have [tex]9x+73=180[/tex]

Subtracting 73 on both sides, we have [tex]107=9x[/tex]

Dividing by 9 on both sides, we have [tex]x = 11 \frac{8}{9}[/tex]

Plugging back into BC = 8x - 4, we have [tex]\frac{856}{9} - 4[/tex]

Combining like terms, we have [tex]\frac{820}{9}[/tex], which is [tex]91 \frac{1}{9}[/tex]

Thank you for your visit. We're dedicated to helping you find the information you need, whenever you need it. Your visit means a lot to us. Don't hesitate to return for more reliable answers to any questions you may have. Your questions are important to us at Westonci.ca. Visit again for expert answers and reliable information.