Answer:
103 degrees
Step-by-step explanation:
A line equals 180 degrees which means the 77 degrees plus the other angle should equal 180 degrees. You can just do 180-77 and get your answer which is 103 degrees.
We have c=3.7 cm, B=97 degrees, area Δ=22.4 sq cm, and we'll call A the vertex opposite a and C the vertex opposite c=3.7 as usual.
Δ = (1/2) ac sin B
a = 2Δ / (c sin B)
Now we have a Law of Cosines situation for b
b² = a² + c² - 2 a c cos B
We could substitute for a general solution but let's just plug in the numbers,
a = 2(22.4) / (3.7 sin 97) = 12.199
b = √(a² + c² - 2 a c cos B)
b = √(12.199² + 3.7² - 2 (12.199)(3.7) cos 97) = √173.507 = 13.17
Answer: 13.2 cm
Answer:
What do you mean?
Step-by-step explanation:
Ratio is: 8:7
Because there are 8 girls against 7 boys
Answer:
Step-by-step explanation:
Let the number of weeks be x
<u>Then Kendal's CD's</u>
<u>Raymond's CD's</u>
<u>Time when they have equal CD's</u>
- 39 + x = 15 + 3x
- 3x - x = 39 - 15
- 2x = 14
- x = 7 weeks