+-(1,7)/+-(1,3,9) are the combinations of f(x)
Answer:
The confidence interval for the mean weight of high school girls in kilograms would have been would have been (46.5, 48.41).
Step-by-step explanation:
To find the interval, we can just make the conversion of the values from pounds to kilograms.
Each kilogram has 2.2 pounds. So, to realize the conversion from pounds to kilograms, we divide by 2.2.
Confidence interval: (102.3 pounds, 106.5 pounds).
102.3 pounds = 102.3/2.2 = 46.5 kilograms
106.5 pounds = 106.5/2.2 = 48.41 kilograms
The confidence interval for the mean weight of high school girls in kilograms would have been would have been (46.5, 48.41).
Answer:
feet
Step-by-step explanation:
Total length of the board =
feet
Length of board that is removed from the larger board = 
When a smaller board is removed, the length of the remaining board can be calculated using subtraction as:
Remaining Length of board = Total Length - Length of smaller board
= 
This means
feet of board remains after removing the smaller board from it.
(1) Equation of the parabola: 
Steps:
We know the span 456 m and max height is 38 m. Since the parabola is symmetric around the vertical going through the maximum point, we know half the span, or 228 m to the left and right from the origin are the zeros of the function. We can place the parabola centered around the origin. Also, since it is an arch, the parabola is upside down, so the coefficient at x^2 is negative:

The vertex is at (0,38), and the positive zero at (228,0). That is enough to determine A and B:

(2) height 204 m from the center: 7.58 m
Steps:
Height at 204 m off the center (either direction) can be calculated by plugging in x=204 into the above equation: 