28.860465 hope this helped
Answer:
Question 4: -11
Question 5: -7
Step-by-step explanation:
Four
Every triangle has 180 degrees.
So all three angles add to 180
<em><u>Equation</u></em>
60 + 80 + x + 51 = 180
<em><u>Solution</u></em>
Combine the like terms on the left. This is the first time I've seen x be a negative value. Almost all of the time it isn't, which should make you wonder.
191 + x = 180
Subtract 191 from both sides.
191 - 191 + x = 180 - 191
x = - 11
Five
If a triangle is a right triangle and one of the angles is 45, then so is the other one.
<em><u>Proof</u></em>
a + 45 + 90 = 180 Combine like terms on the left
a + 135 = 180 Subtract 135 on both sides.
a + 135-135=180-135 Combine the like terms
a = 45
<em><u>Statement</u></em>
That means 52 + x = 45 and here is another negative answer. Subtract 52 from both sides
52 - 52 + x = 45 - 52 Combine like terms.
x = - 7
Answer:
y = 5
Step-by-step explanation:
All angle measures in a triangle add up to 180°.
- This means that 63 + 82 + 7y = 180
<u>Solving for Y:</u>
Step 1: Combine like terms.
Step 2: Subtract 145 from both sides.
Step 3: Divide both sides by 7.
Step 4: Check if solution is correct.
Therefore, y = 5.
Have a lovely rest of your day/night, and good luck with your assignments! ♡
Answer:
.1 inch or 1/12 of an inch
Step-by-step explanation:
