Changing those words into an equation, we get:
7+3x = 19
Subtract both sides by 7
3x = 12
Divide both sides by 3
x = 4
That number is 4. Have a nice day! :)
Answer:
<u><em>Club #7: M= 1/8 Club #8: M= -7/6</em></u>
Step-by-step explanation:
Explanation: M=Slope which also equals rise/run. You always look at the number that is directly in front of the x. Ex: y = 3x + 4. (<em>M=3)</em>
maybe bc of how many times you can add the number itself
Do the parentheses first
Since it’s dividing you are supposed to times it
Answer:
b² = a² + c² - 2ac cos B
Step-by-step explanation:
The cosine rule can be use when you are given three sides of a triangle and ask to find any angle or when you are given two sides and a included angles(the angle between the two sides given) and ask to find the length of a side.
The equation Sophia can use to solve for the side length(b) of a triangle when given two length and the included angle can be expressed below. Sophia was given two sides and an included angle and was asked to find a side length b.
For sides a, b and c the cosine rule can be represented below
a² = b² + c² - 2bc cos A
b² = a² + c² - 2ac cos B
c² = a² + b² - 2ab cos C
The equation required base on your question is
b² = a² + c² - 2ac cos B
