So let's call the missing angles A, B, and C. We know that A + B + C = 180 and we also know that A = B and that C = A + B - 40. So our equation looks like this
180 = 4A - 40 and we add 40 on both sides of the equal sign and get
220 = 4A and we divide on both sides of the equal sign by 4 to get
55 = A So that means B = 55 as well. That means 55 + 55 = 110 and 110 - 40 = 70 So C = 70 and to check, 55 + 55 + 70 = 180.
The measures of the three angles are; 55 degrees, 55 degrees, and 70 degrees.
1.) -21
2.) 5
3.) -20
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The number of ways they can be seated in a row if both families want to sit together is 2 ways
Given that two families with four people in each family go to a movie theater, in order to determine the number of ways they can be seated in a row if both families want to sit together
We will use the permutation rule since it is about the arrangement.
We will take 4 people as 1 group and the other 4 people as another group.
If the groups are to sit together, the number of ways this can be done is 2!
2! = 2 * 1
2! = 2ways
This shows that the number of ways they can be seated in a row if both families want to sit together is 2 ways
Learn more here: brainly.com/question/25500566
Answer:
three thousand five hundred seventy nine
Step-by-step explanation: