Answer:
Option D
Step-by-step explanation:
In the first three options we can evaluate the values of x with the help of Sine Rule for all the triangles
The Rule says

Where a , b and c are the sides opposite to the angles A, B and C of any ΔABC.
Hence , in order to determine unknown values of sides or angles , we need any 3 values from all 3 sides and 3 angles in a triangle. First Three options give us three values but the last option gives only 2.
Example
in first option we can apply Sine Rule as





The answer would be 39.78
Inga needs 3 more years to pay off the whole amount.
<h3>What is the monthly payment?</h3>
A portion of the monthly payment is called the principal, which is the original amount borrowed.
First year balance = $19,691.28
Monthly payment = $273.49
Annual payment = 273.49×12 = $3281.88
Remaining balance after 1 year = 19,691.28 - 3281.88 = $16,409,4
After 3 years balance = $9845.64
- Remaining balance after payment (4 years) = 9845.64-3281.88 = $6563.76
- Remaining balance after payment (5 years) = 6563.76-3281.99 = 3281.88
- Remaining balance after payment (6 years) =3281.88-3281.88 = 0
Hence, Inga needs 3 more years to pay off the whole amount.
To know more about monthly payments click the link given below.
brainly.com/question/26353929
Answer:
∠2
Step-by-step explanation:
Complementary angles are angles that add up to 90°
So ∠3 + ∠2 = 90°