Answer:
99.7%
Step-by-step explanation:
Note that 92 and 128 are 3 standard deviations from the mean
The emperical rule or the 68–95–99.7 rule states that 68% of outcomes are wihtin 1 standard deviation from the mean
95% of outcomes are within 2 standard deviations from the mean
99.7% of outcomes are within 3 standard devations from the mean
This is 3 standard deviations so the answer is 99.7
Answer: P=a+b+c
Step-by-step explanation: You use this formula to find perimeter of a triangle.
Answer:
-4 ≤ y ≤ 2 or [-4 , 2]
Step-by-step explanation:
The maximum of the function is +2 while the minimum is -4, the range is
-4 ≤ y ≤ 2 or [-4 , 2]
Answer:
4
Step-by-step explanation:
<u>Answer</u>
2
<u>Explanation</u>
The two lines in the diagram are secants meeting outside the circle.
The products of a secant and the extension of the chord of one line is equal to the products of a secant and the extension of the chord of the other line.
∴ 3(3+5) = 4(4+x)
3 × 8 = (4×4)+(4×x)
24 = 16 + 4x
4x = 24 - 16
4x = 8
x = 8/4
= 2