

The boat will travel 6.75 or

miles in 1/2 hour.
It’s b because I just know
Answer:
-1/6
Step-by-step explanation:
You turn the problem into 1/2 x -1/3. Doing the equation you get -1/6
Answer:

Step-by-step explanation:
when taking the radical of a number its really just a fractioned exponent for example
= 
This is because in the radical the x has an exponent of 1 and since its the square root the radical is to the 2nd so you take the exponent of the X and put that of the what ever kind of radial you have such as a square root third root fourth root and so on...
in your case you would take X's exponent of 8 and since your taking the cube root would put the 8 over the 3.
hope that helped
Answer:
C
Step-by-step explanation:
In this question, we are asked to calculate the interquartile range of the speed values given in the question.
Firstly, we need to order the values of the speed from the lowest to the highest. That would be;
55 58 65 66 70 72 81
Now, we determine the first quartile position which is Q1. That would be (N+1)/2 where N is the number of data points which is 7 according to this question
We have (7 +1)/4= 8/4= 2
The value at the 2nd position counting from left is 58
For the third quartile , Q3, we have 3 * (N+1)/4 = 3 * 2 = 6
The value at the 6th position counting from left is 72
mathematically, the formula for the interquartile range is Q3 - Q1 = 72 - 58 = 14