All you need to know is that:
- In the first quadrant, both coordinates are positive
- In the second quadrant, x is negative and y is positive
- In the third quadrant, both coordinates are negative
- In the fourth quadrant, x is positive and y is negative
- The sine is the y coordinate of the points on the unit circle
- The cosine is the x coordinate of the points on the unit circle
- The cotangent function is defined as the ration between the cosine and the sine of an angle.
So, if sin theta is negative and cot theta is positive, you're saying that you're looking at a point with negative y coordinate and such that

The ratio of two numbers is positive if and only if they have the same sign, so the cosine must by negative as well.
Saying that an angle has negative sine and cosine is the same as saying that the angle identifies a point on the unit circle where both x and y coordinates are negative.
So, if you look at the bullet list at the beginning, you'll see that the point is in the third quadrant.
This is an isosceles triangle because the 2 base angles are equal and therefore the 2 sides MN and ML are equal also.
So 3x = x + 10
2x = 10
x = 5
Length of MN = 5 + 10 = 15 Answer
Answer:
x = 0
Step-by-step explanation:
hello :
2^x=1 means : 2^x=2^0 because : 2^0 = 1
so : x = 0
Answer:
Step-by-step explanation:
first one: w-8 =5
reverse it- 8+5= 13 so 13-8= 5
second one: 5x-2
2x-2+3x << group together the x's
2x+3x=5x and you'll end up with 5x-2
last one: r/5=-9
again, reverse it- -9 x 5 = -45
a negative times a positive = a negative
If Bryan has three stamps and gets 2 new stamps every week how many stamps would he have in 3 weeks?
2x3+3=?
6+3=9
Bryan would have 9 stamps in 3 weeks.