standard deviation of 1 minute, find the probability that a randomly selected college
Answer:
yes
Explanation:
you need to work all day and night do not eat sleep play or go out with friends
Answer:
A
Explanation:
You must know the basics of Trigonometry to solve this.
First, you must know that
![\frac{3\pi}{4}](https://tex.z-dn.net/?f=%20%5Cfrac%7B3%5Cpi%7D%7B4%7D%20)
lies in the second quadrant, so sin is negative.
Next, since
pi/4, is the reference angle of 3 pi/4, this means that we can set up a right triangle with pi/4 as an angle, we get
![\cos( \frac{3\pi}{4} ) = \frac{ \sqrt{2} }{2}](https://tex.z-dn.net/?f=%20%5Ccos%28%20%5Cfrac%7B3%5Cpi%7D%7B4%7D%20%29%20%20%3D%20%20%5Cfrac%7B%20%5Csqrt%7B2%7D%20%7D%7B2%7D%20)
![\sin( \frac{\pi}{4} ) = - \frac{ \sqrt{2} }{2}](https://tex.z-dn.net/?f=%20%5Csin%28%20%5Cfrac%7B%5Cpi%7D%7B4%7D%20%29%20%20%3D%20%20-%20%20%5Cfrac%7B%20%5Csqrt%7B2%7D%20%7D%7B2%7D%20)
So the answer is A
Answer: Angle formed with height and hypotenuse is 40 degrees
Explanation:
Hi, to answer this question we have to analyze the information given:
Since the triangle is a right triangle it has a right angle that has a value 90 degrees.
Since the sum of the interior angles is equal to 180 degrees:
180 = x +50 + 90
Solving for x:
180-90-50 =x
40° =x
Feel free to ask for more if needed or if you did not understand something.