Okay, say you have 1/5 amount of pizza. And there is ten people who has to eat it. How much pizza will each person get? Let me know if u need the answer. Brainliest?
Answers:
- cos(2theta) = -119/169
- cos(theta) = -5/13
=====================================================
The given info is:
- sin(theta) = 12/13
- theta is in quadrant II
From that, we can use the pythagorean trig identity to find that cos(theta) = -5/13. Keep in mind that cosine is negative in quadrant II.
Now use the trig identity below to compute cos(2theta)

Other options you could use are these identities

or

There are 65 boys, and the boy ratio is 13: so to find how they got that, divide 65 by 13 and that is 5. Since we now know it is the amount of people, divided by 5, we can take the girl ratio (15) and multiply it by 5 to get the amount of girls (which is 75). You need to find the total amount of students in the class so add the boys and girls (65+75) and get 140 total students
Answer:
32.6 - y= 10.2
Step-by-step explanation:
The equation to solve this problem can be written as
32.6 - y= 10.2
Where y is the number that was substracted from 32.6.
If we make y subject of formula we have
y= (32.6-10.2)
y=22.4
Which means the number that was substracted from 32.6 is 22.4 and there difference is 10.2
Answer:
The 51 and 62 triangle is 67°
The 43 triangle is 47°
Step-by-step explanation:
Angles in a triangle add to 180°
180 - ( 51 + 62 ) = 180 - ( 113 ) = 67°
180 - ( 43 + 90 ) = 180 - 133 = 47°