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1. Solve by substitution or elimination method:
3x - 2y = 8-12x + 8y = 32
2. Solve by substitution or elimination method:
7x - 5y = 14-4x + y = 27
3. Solve by substitution or elimination method:
-4x + 3y = 512x - 9y = -15
4. A university bookstore recently sold a wire bound graph-paper notebook for $2.50 and a college-ruled notebook for $2.30. At the start of spring semester, a combination of 50 of these notebooks was sold for a total of $118.60. How many of each type were sold?
5. Write a system of equations for each of the following, and solve each of the systems.
i. A unique solution.
ii. An infinite number of solutions.
iii. No solution.
Solve these questions in detail - Domains of Rational numbers.
Explain why no negative values are chosen as values to substitute in for x. Graph in MS Excel or another web-based graphing utility and paste your graph here.
The equilibrium price and quantity.
Danny bought 20 used games for his PS3. Some games cost $25 and some games cost $15. If he spent $430 altogether, how many of each did he buy?
Solve the equation to find the variable.
Find the quotient and remainder.
Find the slope of the line containing the given points: (2, -8); (-7, 3). Determine whether there is a maximum or minimum value for the given function, and find that value. f(x) = x2 - 20x +104
Make sure to subscript where appropriate. Solve the system of equations using the substitution method. If the answer is a unique solution, present it as an ordered pair (x, y). If not, specify whether the answer is "no solution" or "infinitely man..
Calculate the doubling time of a population.
Could you please show me how to find the eigenvalues of B^2 + I and (B^2 + 3B - I)^-1 and how would I justify these answers.
(If the expression is an exponential form, write it in radical form. If it is in radical form, write it in exponential form. Assume all variables represent positive real numbers)-m √(?2y?^5 )
Prove that the square of any odd integer is expressible in the form 8n + 1, with n e Z.
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