Answer:
The equation is
y = 4x
Cost for 68 students: 272
y = 4 × 68
y = 272
Hope this helps
Answer:
The range is: 13. The population mean is: 8.5. The population variance is: 15.85. The population standard deviation is: 3.9812.
Step-by-step explanation:
The range: 15 - 2 = 13
The population mean is:
Mean = ( 2 + 9 + 15 + 5 + 14 + 8 + 11 + 7 + 4 + 10 ) / 10 = 8.5
The population variance ( S² or Sigma² ):
S ² = 1/10 · ( ( 2 - 8.5 )² + ( 9 - 8.5 )² + ( 15 - 8.5 )² + ( 5 - 8.5 )² + ( 14 - 8.5 )² + ( 8 - 8.5 )² + ( 11 - 8.5 )² + ( 7 - 8.5 )² + ( 4 - 8.5 )² + ( 10 - 8.5 )² )
S ² = 15.85
The population standard deviation:
S = √(S²) = √15.85 = 3.9812
e is a special number, so you would need to use a calculator to solve this.
a) replace t in the equation with 5 ( 2005 - 2000 = 5 years)
A = 16.6e^0.0457*5 = 20.86 million Round to nearest tenth = 20.9 million.
b) replace A with 23.3 and solve for t:
23.3 = 16.6e^0.0457*t
Divide both sides by 16.6:
1.4036 = e^0.0457t
Take the natural logarithm of both sides:
0.0457t = LN(1.4036)
Divide both sides by 0.457:
t = LN(1.4036)/0.0457
t = 7.419 years, rounded to nearest tenth = 7.4 years.
Answer:
1702
Step-by-step explanation:
4
6
×
3
7
+
3
2
2
+
1
3
8
=
1
7
0
2
The believe the answer is C but I could be wrong, good luck!
