First, find the interior angle missing:
Then, we know all the interior angles in a triangle add up to 180º. So, we add all the values for the interior angles and we equate them to 180. We solve the equation normally.
After that, we must add the two angles on a straight line on the right-hand side and equate them to 180.
We compare the equations:
We simultaneously solve by isolating one of the variables (
) in one of the equations (
) and substituting into the other (
):
We substitute it back into the first formula, the one in which we isolated the variable ():
We now check our answer using the formula we know about the internal angles of a triangle (
):
Now, if 
, then we are correct!
So, in conclusion, 
and 
.
Step-by-step explanation:
Example: -3x2x4
2x4=8
-3x8=-24
hope it helps!
Answer:
4224
Step-by-step explanation:
Here, we want to calculate the sum of the first 44 digits
Term a which is first digit is 10
common difference which is difference of terms = 14-10 = 18-14 = 4
Now the nth term of an arithmetic sequence is
a + (n-1)d
44th term means n = 44
10 + (44-1)4
10 + 43(4)
10 + 172 = 182
To find the sum, we use the formula
Sn = n/2[a + L]
where a is the first term and L is the 44th term
Sn = 44/2 (10 + 182)
Sn = 22(192)
Sn = 4,224
Step-by-step explanation:
4300$ - 100%
x$ - 8%
(4300 × 8) ÷ 100 = 344$
344 + 320 = 664$
answer: 664$ :))))
.15 is the smaller number
Hope this helps!!!
