Answer:
The sample proportion is 0.158.
Step-by-step explanation:
In a confidence interval of proportions, we have the lower bound and the upper bound of the interval. The sample proportion is the halfway points between these bounds, that is, the sum of these bounds divided by 2.
In this problem, we have that:
Lower bound: 0.142
Upper bound: 0.174
Sample proportion: (0.142+0.174)/2 = 0.158
The sample proportion is 0.158.
Number of faces: F=a+3
Number of vertices: V=2a
Number of edges: E=4a-1
V+F-E=2
Replacing V=2a; F=a+3; and E=4a-1 in the formula above:
(2a)+(a+3)-(4a-1)=2
Eliminating parentheses:
2a+a+3-4a+1=2
Adding similar terms:
(2+1-4)a+(3+1)=2
(-1)a+4=2
Solving for a. Subtracting 4 both sides of the equation:
(-1)a+4-4=2-4
(-1)a=-2
Dividing both sides by (-1)
(-1)a/(-1)=-2/(-1)
a=2
Answer: The value of a is: a=2
Answer:
Step-by-step explanation:
Mn
Answer:
Steps
0+ 895.6 =gx 568.57 + 895.6 x 1
Switch sides
gx 568.57 + 895.6 x 1 =0+ 895.6
Multiply the numbers: 895.6 x 1= 895.6
568.57g + 895.6 = 0 + 895.6
Add the numbers: 0 + 895.6 = 895.6
568.57g + 895.6 = 895.6
Multiply both sides by 100
568.57g x 100 + 895.6 x 100 = 895.6 x 100
Refine
56857g + 89560 = 89560
Subtract 89560 from both sides
56857g + 89560 –89560=89560 – 89560
Simplify
56857g =0
Divide both sides by 56857
56857g/56857=0/56857
Simplify
g=0
Answer: (f+g)(x)=5x2-x+6
Step-by-step explanation:
I hope this helps
