Answer:
1 or 0
Step-by-step explanation:
8 x b = 13
You can't divide 8 by two because that equals 16 so 8 x 1 is less than 8.
And 8 x 0 is 0
Answer:
1/ 6
Step-by-step explanation:
Answer:
8 centimeters.
Step-by-step explanation:

Divide 3 both sides:

Multiply 4 on both sides:

8cm on the map represents 20km.
Find the z-scores for the two scores in the given interval.

For the score x =391,

.
For the score x = 486,

Now you want the area (proportion of data) under the normal distribution from z = -1 to z = 0. The Empirical Rule says that 68% of the data falls between z = -1 to z = 1. But the curve is symmetrical around the vertical axis at z = 0, so the answer you want is HALF of 68%.