Answer:
2 on the X line straight up and down
Step-by-step explanation:
Here’s the step of doing it
Answer:
B
Step-by-step explanation:
Euler's formula for polyhedra states that
F + V - E = 2
(F is faces, V is vertices and E is edges )
Here F = 6 and E = 12, thus
6 + V - 12 = 2, that is
V - 6 = 2 ( add 6 to both sides )
V = 8 → B
For 7 days,Keisha has drunk the average amount of water.
If we have a triangle with sides a and b and an included angle of C, then the area of the triangle would be:
A = (1/2) ab sin C
If angle C is bisected into two each angles each measuring x, then the area can be expressed as:
A = (1/2) ab sin 2x
Using the trigonometric identity for sin 2x = 2 sin x cos x, the area would now be:
A = ab sin x cos x
Since the line segment s divides the angle into two, it also divides the triangle into two. Another equation for the area is:
A = (1/2) as sin x + (1/2) bs sin x
Equating the two equations gives us:
ab cos x = (1/2) as + (1/2) bs
Solving for s
s = 2 ab cos x / (a + b)