Basic Math question and answers for August 29, 2024
- Q According to records, the amount of precipitation in a certain city on a November day has a mean of 0.10 inches, with a standard deviation of 0.07 inches. Whatis the...
- Q At a local restaurant, the amount of time that customers have to wait for their food isnormally distributed with a mean of 12 minutes and a standard deviation of 2minutes....
- Q When Alexa commutes to work, the amount of time it takes her to arrive is normally distributed with a mean of 34 minutes and a standard deviation of 3.5 minutes....
- Q What is the purpose of finding a sample mean or sampleproportion?The only way to get a good estimate of the population mean or proportion is to take small sample sizes...
- Q Suppose that pulse rates among healthy adults are normally distributed with a mean of 79 beats/minute and a standard deviation of 8 beats/ minute. What proportion of healthy adults have...
- Q Many college graduates who are employed full-time have longer than 40-hour work weeks. Suppose that we wish to estimate the mean number of hours, ,worked per week by college graduates...
- Q The weights (in pounds) of 19 preschool children are23, 49, 25, 43, 34, 48, 37, 30, 29, 47, 24, 27, 22, 45, 46, 42, 26, 50, 20Find 25th and 80th...
- Q A coin-operated coffee machine made by BIG Corporation was designed to discharge a mean of eight ounces of coffee per cup. If it dispenses more than that onaverage, the corporation...
- Q Flu is spreading exponentially at a school. The number of new flu patients can be modeled using the equation F = 10e0.12d, where d represents the number of days since...
- Q Find S, through S, and then use the pattern to make a conjecture about S, Prove the conjectured formula for S, by mathematical induction.Sn:1/22+1/66+1/132+1/220+...+1/11n(n+1)Find S, through S5-(Type an integer or...
- Q Carly wants to invest $1000 in an account that earns 8% interest, compounded quarterly. How many years will it take for he account to have a value of $5000? Round...
- Q Determine the a) down payment, b) amount of the loan, c) monthly payment, and d) finance charge.Jason Wagner obtains an installment loan to buy a $12,000 Honda Accord. His down...
- Q A 75 L gas tank has a leak. After t hours, the remaining volume, V, in litres is V(t) = 75 (1 - t/24) ,0? t ? 24. Use the...
- Q -6z +6z +140/ (z + 5) (3z-5)Determine the correct partial fraction decomposition for the expression above.Provide your answer below:
- Q You buy fishing equipment costing $268. State taxes are 6.5% and the federal excise tax on this item is 11.45%. What is the total purchase price? (Round your answer to...
- Q Use mathematical induction to prove the statement for all positive integers n.2+14+26+...+(12n-10) = n(6n-4)What is the first step in a mathematical induction proof?A. Show that S? is true.B. Show that...
- Q A small metal bar, whose initial temperature was 10 C, is dropped into a large container of boiling water. How long will it take the bar to reach 70 C...
- Q Suppose a certain company gave raises of 3% each year for three years followed by raises of 5% for the next two years.a. If an employee has an annual salary...
- Q A population numbers 11,000 organisms initially and decreases by 2.9% each year.Suppose P represents population, and t the number of years of growth. Write an exponential model, P, in the...
- Q Suppose you pay $2.00 to roll a fair die with the understanding that you will get back $4.00 for rolling a 2 or a 1, nothing otherwise.What is your expected...
- Q Compute the area of the region R bounded by the curver = 1- cos?. This curve was sketched in the previous homework (andyou can refer to that sketch). Use the...
- Q Dan is putting money into a savings account. He starts with $350 in the savings account, and each week he adds $30.Let S represent the total amount of money in...
- Q Suppose that the profit obtained from the sale of x fish-fry dinnersis given by P(x) = -0.025x + 8x - 40. What is themarginal profit, indollars from the sale of...
- Q Find the monthly payment (in $) and the total interest (in $) for a mortgage of $48,000 at 5 3/4% for 30 years. Use this table and give the total...
- Q The area of a square is increasing at a rate of 12 centimeters squared per second. Find the rate of change of the side of the square when it is...
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