Answer:
-6
Step-by-step explanation:
(-6) squared -36=0
36-36=0
Answer:
-2 5/14
Step-by-step explanation:
Since both α and β are in the first quadrant, we know each of cos(α), sin(α), cos(β), and sin(β) are positive. So when we invoke the Pythagorean identity,
sin²(x) + cos²(x) = 1
we always take the positive square root when solving for either sin(x) or cos(x).
Given that cos(α) = √11/7 and sin(β) = √11/4, we find
sin(α) = √(1 - cos²(α)) = √38/7
cos(β) = √(1 - sin²(β)) = √5/4
Now, recall the sum identity for cosine,
cos(x + y) = cos(x) cos(y) - sin(x) sin(y)
It follows that
cos(α + β) = √11/7 × √5/4 - √38/7 × √11/4 = (√55 - √418)/28
It's a right angle, which is 90°, 90°-77°=13°
Answer:
34,000
Step-by-step explanation:
100,000-2% equals 2000 that’s the growth Population times that by 17 Years gives you total population growth
