Euler's formula is given by:
C + V = A + 2
Where,
C: number of faces
V: number of vertices
A: number of edges.
Clearing A we have:
A = C + V-2
Substituting values:
A = 21 + 14-2
A = 33
Answer:
the missing number is:
C.33
Line joining (-3, -1) and (1/2, 2)
Point point form for a line is
(c-a)(y-b) = (d-b)(x-a)
(1/2 - - 3)(y - -1) = (2 - -1)(x - -3)
(7/2)(y+1)=3(x+3)
7(y+1)=6(x+3)
7 - 6(3) = 6x - 7y
6x - 7y = -11
Answer: second choice, 6x - 7y = -11
The price before the tip was 8 dollars
Find an easy to read point such as (10, 40).
The ratio of y to x is 40/10 = 4/1.
Now look in your choices and find a point in which y is 4 times x.
The only such point is (5, 20).
Answer: C. (5, 20)
Answer:
7x ≥ x + 6
A number signifies <em>x</em>.
Replace "a number" with x and then write out the inequality.
