Cot x = cos x / sin x
cot π/4 = cot 45° = cos 45° / sin 45°
We know that sin 45° and sin 45° have the same value:
cos 45° = sin 45° = √2 / 2;
cos 45° / sin 45° = √2/2 : √2/2 = 1
Answer:
cot π/4 = 1
The first number for the Y it gives on the chart is the intercept
So 3 is correct
Hope that helped:D
Answer:
x=25
Explanation:
Using the method of cross multiplication and division set up like so,
(100•4.5)/18 will give you 25.
4.5•100=450
450/18=25
If two parallel lines are cut by a transversal, the corresponding angles are congruent.
Answer:
See below.
Step-by-step explanation:
The volume is 1/3 * height * area of the base so we need the height and this area to find the volume. Note: if we join the point S to each of the vertices of the base we get 6 equilateral triangles so knowing the length of a side of the base we can find the area of the base.
The following lengths can be used:
XY and ST We can get the area of the base knowing the length of XY and ST is the height.
VU and TW. From VU we can get the area of the base and the length of SW and from the length of TW and SW we can get the height.
TX and WX . From WX we can get the area of the base and the length of SX and from TX and SX we can find the height.
