Answer: D) Number of yards Jerry cuts; 0 ≤ x ≤ 10
Step-by-step explanation:
Here the given function that describes the total profit,
y = 15 x - 10
Where x represents the number of lawns Jerry cut in a week.
But, Depending homework and chores, he has time to cut at most 10 lawns a week.
Thus, x ≤ 10
Also, the number of lawns can not be negative.
Therefore, x ≥ 0
And, the value of x will decide the domain of the function y,
Thus, the domain of the given function is,
0 ≤ x ≤ 10
⇒ Option D is correct.
Answer:
The 90% confidence interval for the population proportion of all such firms with this as the primary motivation is (69.96%, 80.04%).
Step-by-step explanation:
In a sample with a number n of people surveyed with a probability of a success of 
, and a confidence level of 
, we have the following confidence interval of proportions.
In which
z is the z-score that has a p-value of 
.
The Corporate Lawyer, a magazine for corporate lawyers, reported that out of 200 firms with employee stock ownership plans, 150 indicated that the primary reason for setting up the plan was tax related.
This means that 
90% confidence level
So 
, z is the value of Z that has a p-value of 
, so 
.
The lower limit of this interval is:
The upper limit of this interval is:
As percent:
0.6996*100% = 69.96%
0.8004*100% = 80.04%.
The 90% confidence interval for the population proportion of all such firms with this as the primary motivation is (69.96%, 80.04%).
Answer:
$0.30 per ounce for the small popcorn
Step-by-step explanation:
Divide 4.5 (price) by 15 (oz) to get the unit price.
Have a nice day!!!
Answer:
x=110
Step-by-step explanation:
Since the sum of the interior angles of a trapazoid is 360, all you have to do is add the angles given and subtract that by 360, which gets you 110.
Answer:
Interest earned is $58.2
Amount in account is $544.2
Step-by-step explanation:
To calculate the simple interest, we make use of the simple interest formula.
Mathematically;
I= PRT/10”
whereI is the interest
P is the amount deposited which is the principal and is 485
R is the rate which is 3% or simply 3/100 = 0.03
T is time which is 4 years
Plugging the values, we have
I = (485 * 3 * 4)/100 = $58.2
The amount of money in the account will be the interest plus the principal.
This is $58.2 + 485 = $543.2
