6 dollars I think cause I dont know the answer Im just guessing
Answer:
For the problems presented, the following are the answers:
1. No graph is provided, sorry.
2. 2, 1/2
3. 12m
4. 30
5. 1.1, 9.1
6. 10.35, 1.35
22. -6, 2
Step-by-step explanation:
Please mark me brainliest if my answer is correct thank you and have a nice day
4/52
then u would divide both numbers by 4 and get
1/13
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
ANSWER
3
EXPLANATION
The given expression is
We want to evaluate this expression for x=4 and y=1.
We just have to substitute these values into the given expression and simplify.
When we plug in these values,we obtain,
