Answer: B. 8 x 10^3
Step-by-step explanation:
If u need to show your work here:
Take the 10 and divide by 2
Then that 5 is now 5a at the beginning of the problem then rewrite it and then take a4,b6,a7,b-3 and add them together which gives you and answer of
5a11b3
Step by step:
-3y(5y^3+11y^2-y+8)
-15y^3-33y^2-3y-24y
That would be your answer
Answer:
The answer to your question is
A = 29.6°
B = 115.4°
C = 35°
Step-by-step explanation:
Process
1.- Use the Cosines law to answer this question
c² = a² + b² - 2abcosФ
Solve for cos Ф
cos Ф = (c² - a² - b² )/ -2ab
Substitution
cosФ = (7² - 6² - 11²) / (-2)(6)(11)
cosФ = (49 - 36 - 121) / -132
cos Ф = -108 / -132
cos Ф = 0.818
Ф = 35° = C
Find B
cos Ф = (b² - a² - c²) / (-2ac)
cos Ф = (11² - 6² - 7²) / (-2)(6)(7)
cos Ф = ( 121 - 36 - 49) / -84
cos Ф = 36 / -84
cos Ф = -0.429
Ф = 115.4° = B
2.- Find a
The sum of the internal angles in a triangle equals 180°
A + B + C = 180
A + 115.4 + 35 = 180
A = 180 - 115.4 - 35
A = 29.6°
I hope this helps you
-x+6y=5