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In May, total sales were $42000. Customers bought 5 times as many boxes of light bulbs as switch plates. How many of each did Light Bright Warehouse sell?
Mrs. Thomas also has a garden in her yard and wants to put a 50-meter rectangular fence around it.
The number of bacteria present in a certain culture at time t (measured in hours) is given by P(t)=P02(0.2t). Time t=0 corresponds to 8.00 A.M.
The length of a rectangle is 5 meters more than its width. If the area is 66 square meters, what are the length and width?
Ride the Peaks. Penny’s bicycle trip from Colorado Springs to Pikes Peak took 1.5 hours longer than the return trip to Colorado Springs.
Solve by the substitution method. Determine whether the equations are independent, dependent, or inconsistent.
State the product law for logarithms. Is it possible to use the product law for logarithms to evaluate the expression log(-7) + log(-4)?
Define a system of equations.Solve systems of equations with two and three variables.
Possible system of equations.Consider the set of points (x, y, z) defined by the set of equations below:
Solutions of a System of Nonlinear Equations.Give an example of a nonlinear system of two equations in two unknowns having:
Helen has 1/5 of her portfolio in US stocks, 1/8 of her portfolio in European stocks, and 1/10 of her portfolio in Japanese stocks.
Prove the Perturbation Estimate.Let A? Cnxn be invertible and suppose b? Cn*. Suppose x?Cn satisfies Ax = b.
Using the addition principle solve 15 = n - 2. Be sure to check. Add (9 + 7x + 5x2 + 6x3) + (5 - 7x + 5x2 - 6x3). Simplify the answer.
Find a product for sale that comes packaged in different sizes. Compute the unit price (e.g. dollars per ounce, dollars per foot, dollars per megabyte, etc.).
Kathy bicycles 5 km/h faster than Javier. In the same time it takes Javier to bicycle 57 km, Kathy can bicycle 72 km. How fast does each bicyclist travel?
A rectangle has its base lying on the x axis and its upper corners on the parabola y=8 - x^2.
Determine which of the following are linear equations and which are not linear equations. State the reason for your answer.
The formula r=2sqrt(5L) can be used to approximate the speed r, in miles per hour, of a car that has left skid marks of length L, in feet.
Problems Involving Linear Equations and Functions Race was 46.2 sec in 1920. In 1940 was 46.0 sec. Let R (t) = the record in the race and t= the number of year
2 mechanics worked on a car. the 1st mechanic worked for 10 hours the second mechanic worked 15. The total they charged was $1525.
Determine the eigenvalues, determinant, and singular values of a Householder reflector. Give algebraic proofs for your conclusions.
When they return the son says that he counted 200 legs and the daughter says she counted 70 heads. How many pigs and chickens does the farmer have?
Verify each root by plugging the root back into the equation and performing the computation.
The height of a building is 1411 ft. How long would it take an object to fall to the ground from the top?
How would you use this procedure (factoring a quadratic expression with leading coefficient a = 1) to determine if a given polynomial is prime.