The range is the subtraction of the highest and the lowest number so 67-21= 46
hope this helps!
-turtles12345
Answer:
5.14 and 18.86
Step-by-step explanation:
They give us the following information:
mean (m) = 12
standard deviation (sd) = 3.5
For cutting extreme 5% under the normal distribution curve standard normal score is + - 1.96
we have to:
z = (x - m) / sd
Lower limit is
-1.96 = (x -12) /3.5
-6.86 = x - 12
x = 5.14
Upper limit is
1.96 = (x -12) /3.5
6.86 = x - 12
x = 18.86
Therefore, the raw scores are 5.14 and 18.86
Answer:
Step-by-step explanation:
817.52 should be correct
Answer:
x = - 12, y = - 9
Step-by-step explanation:
Given
- 4 + 3i - x + yi = 8 - 6i
Simplify left side by collecting like terms and equate like coefficients with the terms on the right side, that is
- 4 - x + i(3 + y) = 8 - 6i, thus
3 + y = - 6 ( subtract 3 from both sides ) ← equating imaginary parts
y = - 9, then
- 4 - x = 8 ( add 4 from both sides ) ← equating real parts
- x = 12 ( multiply both sides by - 1 )
x = - 12
Answer:
The equation is 216/20= 10.8 so about 11 dollars each
Step-by-step explanation:
Part B 216/ 15= 14.40 14.4 and 10.8 both round down so this awnser is reasonable