Find the present value of $40,000 due in 4 years at the given rate of interest 8%/year compounded monthly.
Write the following set in builder notation form
Determine whether the equation defines y as a linear function of x. If so, write it in the form y = mx + b. 8x = 5y + 9
y = x +
y = x –
y = –x –
y = –x +
Determine whether the system of linear equations has one and only one solution, infinitely many solutions, or no solution. Find all solutions whenever they exist.
one and only one solution
one and only one solution
one and only one solution
infinitely many solutions
What is the probability of arriving at a traffic light when it is red if the red signal is flashed for 30 sec, the yellow signal for 5 sec, and the green signal for 40 sec?
Solve the system of linear equations using the GaussJordan elimination method.
In a poll conducted among 180 active investors, it was found that 100 use discount brokers, 122 use fullservice brokers, and 54 use both discount and fullservice brokers. How many investors use only discount brokers?
Write the equation in the slopeintercept form and then find the slope and yintercept of the corresponding line.
Find the interest rate needed for an investment of $4,000 to grow to an amount of $5,000 in 4 yr if interest is compounded continuously. Please round the answer to the nearest hundredth of percent.
Metro Department Store’s annual sales (in millions of dollars) during 5 years were
Plot the annual sales (y) versus the year (x) and draw a straight line L through the points corresponding to the first and fifth years and derive an equation of the line L.
Solve the linear programming problem by the simplex method. A system composed of two linear equations must have at least one solution if the straight lines represented by these equations are nonparallel. Solve the linear system of equations
Unique solution: Unique solution: Infinitely many solutions:

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