cos(a) = x/r
sin(a) = y/r
tan(a) = y/x
In the image at the end, you can see a sketch of the situation, we can model this with a triangle rectangle:
The hypotenuse length is equal to r, the adjacent cathetus to the angle is the x-value, and the opposite cathetus to the angle is the y-value.
Now we can remember the trigonometric relations:
cos(a) = (adjacent cathetus)/(hypotenuse)
sin(a) = (opposite cathetus)/(hypotenuse)
tan(a) = (opposite cathetus)/(adjacent cathetus)
Using what we wrote above, we can rewrite these as:
cos(a) = (adjacent cathetus)/(hypotenuse) = x/r
sin(a) = (opposite cathetus)/(hypotenuse) = y/r
tan(a) = (opposite cathetus)/(adjacent cathetus) = y/x
if you want to learn more about this topic, you can read:
brainly.com/question/24297646
-3k + 4x - 6k - 7x
Since the variables are not all alike, we will seperate them into two equations based on the variables.
-3k + 6k
4x - 7x
Now find the answers to the equations.
-3k + 6k = 3k
4x - 7x = -3x
Since these answers are unlike variables, the answer to the problem is 3k - (-3x).
Hope this helps!
Yes Suzanne made an error in solving the equation
<h3><u>Solution:</u></h3>
Given that Suzanne did this work to solve an equation did she make an error
Given equation: x - 5 = 3x - 2 - 7 - 5x
Equation by Suzanne: x - 5 = 2x - 9
Yes Suzanne has made error in solving the equation
As per original equation,
x - 5 = 3x - 2 - 7 - 5x
On the right hand side, when we combine like terms of "x" we get,
x - 5 = -2x -2 - 7
x - 5 = -2x - 9
But the Suzzane has got x - 5 = 2x - 9 which is wrong. Since she missed negative sign before 2
<em><u>Rules for adding positive and negative numbers:</u></em>
To add integers having the same sign, keep the same sign and add the absolute value of each number. To add integers with different signs, keep the sign of the number with the largest absolute value and subtract the smallest absolute value from the largest.
<em><u>Correct form of solving:</u></em>
x - 5 = -2x -2 - 7
x - 5 = -2x - 9
Answer:
1/2
Step-by-step explanation:
slope is rise over run. Choose two points on the line that are whole numbers. Then put the rise (1) over run (2)
Answer:
1. m=8,5*h
2. you can diy from the equation above