<h2>
Hello!</h2>
The asnwer is: Cos50° ≈ 0.643
<h2>
Why?</h2>
A unit circle is a cirgle with a radius equal of 1, knowing that, also know the following:
The angle is drawn passing trough the unit circle at (0.643,0.766) it means that:
So,
Cos50° ≈ 0.643
We can prove that by following the next steps:
- If it's a unit circle,here is a right triangle with hypotenuse of 1,
- We can determine the cosine of the angle by the following formula:
Therefore,
Cos(α)=49.98°≈50°
Also, if there is a right triangle, according to the Pythagorean Thorem:
Hence,
Cos50° ≈ 0.643
Have a nice day!
we know that
shape of solar array will be rectangular
we are given
length=240ft
width =40ft
we know that
Area=length*width
............Answer
Answer:
yes it would make a acute triangle
Step-by-step explanation:
Answer:
4 books for $26
Step-by-step explanation:
4 books for $26
Take the price and divide by the number of books
$26/4 =$6.50 per book
6 books for $42
Take the price and divide by the number of books
$42/6 = $7.00 per book
The better buy is 4 books for $26
Answer:
see explanation
Step-by-step explanation:
Under a reflection in the x- axis
a point (x, y ) → (x, - y ), hence
F(- 1, 9) → F'(- 1, - 9)
G(- 2, 1) → G'(- 2, - 1)
H(- 7, 4) → H'(- 7, - 4)
