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a vending machine dispesses coffe into twenty-ounce cup. the amount of coffe dispensed into the cup is normally distrubuted with s standard deviation of 0.40 ounces. you allow the cup overfill 10% of the line. What amount should you set the mean amounty of coffee to be dispensed.
For this problem please state the method you used and show the work required to obtain the answer. Find the general solution for each of the systems:
A sample of 13 brands of caffeinated coffee had a mean caffeine level of 119.6 mg and a standard deviation of 52.5. The population is normally distributed. Compute a 90% interval for the mean caffeine level.
I need assistance in solving the following linear system for x using Cramer's rule and must show the work:
Find the test value for two population variances
A power Station and a factory are on opposite sides of a river 60m wide. A cable must be run from the power station to the factory. it costs $25 per meter to run a cable in the river and $20 per meter on land.
Consider an annuity-immediate with monthly payments for twenty years. The payments are level in the course of each year, then increase by 2% for the next year. Find the present value of this annuity if the initial payment is $1, 000 and i = 4%.
Which set of vertices represents a square?
The lifetimes of two car batteries (Brand A and B) are independent exponential random variables with means 12 hours and 10 hours, respectively.
The problem that I'm having is that there is a nonconstant factor of (x^2+y^2+z^2)^(-1/2) appearing on the RHS of this equation, making it non-trivial to solve.
Consider the following three vectors in R^3: Verify that {x_1, x_2, x_3} are orthogonal with the standard inner product in R^4
Estimate the galois group.
Given A = a*p_hat + b*psi_hat + c*z_hat (cylindrical unit vectors), where a, b, and c are constants. Is A a constant vector (uniform vector field)? If not, find: the divergence and curl of A
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