Answer:
115 degrees
Step-by-step explanation:
We know that all the angles of a triangle add up to 180 degrees.
Therefore 7x+10+x+20+2x=180
Combine like terms
10x+30=180
Subtract 30 from both sides (subtraction property of equality)
10x=150
Divide both sides by 10 (division property of equality)
x=15
Now we can plug this into the largest angles equation.
7(15)+10
= 115 Degrees.
Answer:
3 and 63
Step-by-step explanation:
Sadie’s family’s car is slightly more fuel efficient than Nanette’s family’s car.
The solution set of the equation is: x = -3, x = 3.
<h3>How to Find the Solutions to an Equation?</h3>
Given the equation, x² + 12 = 21, the solution set is the possible value of x that will make the equation true. To find the values of x, do the following as shown below:
x² + 12 = 21
Subtract 21 from both sides of the equation
x² + 12 - 21 = 21 - 21
x² + 12 - 21 = 0
x² - 9 = 0
Find the difference of the two squares
(x + 3)(x - 3) = 0
x = -3
x = 3
Therefore, the solution set of the equation is: x = -3, x = 3.
Learn more about solution set of equations on:
brainly.com/question/13729904
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Answer:
1/-6
Step-by-step explanation:
tell me in the comments if there are more like this ill answer them
