Answer: 11, 45, 45, 54, 520
Answer:
The psychologist finds that the estimated Cohen's d is 0.583.
Step-by-step explanation:
The Cohen's d is used to calculate the effect size, appied when a null hypothesis is rejected.
It can be calculated for this case of population mean as:

The psychologist finds that the estimated Cohen's d is 0.583.
Answer:
The work required to empty the tank is 1,580,887 J
Step-by-step explanation:
Work = mass of chocolate × acceleration due to gravity × height of chocolate
Volume of tank (cone) = 1/3πr^2h = 1/3 × 3.142 × 2^2 × 7 = 29.33 m^3
Mass of hot chocolate = density of hot chocolate × volume of cone = 1100 kg/m^3 × 29.33 m^3 = 32,263 kg
height of chocolate = 5 m
Work = 32,263×9.8×5 = 1,580,887 J
Propane costs $3.50 per hundred pounds,
and there is a $6 monthly delivery fee.
A family has budgeted $85 for their propane this month.
Let 'x' hundreds of pounds can the family use without going over budget
Here family has budgeted $85 for their propane.
So the cost for Propane = $ 3.5x
One month delivery fee $6
Therefore cost + delivery charge not exceed $85
So 3.5x + 6 ≤ 85
3.5x=85-6 =79
x = 22.57
Therefore 22 hundreds of pounds can the family use without going over budget
Answer: Josh = 19.8 hours, Danny = 10.8 hours
<u>Step-by-step explanation:</u>


Since time cannot be negative, x=-5.8 is an extraneous solution (not valid) so x = 10.8
Josh: x + 9 --> 10.8 + 9 = 19.8
Danny: x --> 10.8
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2a) k = 9.45 & 0.55
2b) x = 3/2
2c) x = 2/3 <em>(x = -1 is an extraneous solution so is not valid)</em>
2d) No Solution <em>(x = 1 is an extraneous solution so is not valid)</em>
Here is the work for 2a. Follow this format for b, c, & d

