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# solve system through elimination

-5x+7y=11 -5x+3y=19   multiply bottom equation by -1   -5x+7y=11 5x-3y= -19  4y=-8 y=-4   -5 (-4) +7y=11 20 + 7y=...

# Solve the following equation.

3x > -3   X_____________

# System solving through elimination

3x-2y= -1 3x-4y= 9   by adding, I get:   -6y=8 /6=/6 y=4/3 ?   Do I need to multiply bottom equation by -1, before adding? 3x-2y=-1 -3x+4y=...

# help solve this system

x-y=4 x-2y=10   I came up with   y=-4 2/3   Or y= -2   And I don't think either works back in the system:(

# An infectious strain of bacteria increases in number at a relative growth rate of 200% per hour. When a certain critical number of bacteria are present in the b

can some one walk me through the steps to solve this problem and explain?

# Let A = {15, 25, 35, 45, 55, 65} and B = {25, 45, 65}. What is A n B

need help trying to figure out this problem no idea how to do it

# If P(x)=x^2, use factoring to simplify P(a+h)-P(a)

Does the first part have anything to do with the second?

-X + X=5 X-5X=-9

# how to factor xsquared + 13x +30

how to factor x squared + 13 +30 - 2x squared + 13x +30 - 6xsquared-13x+30-the primeter of a triangular park is 16x+5 if one side is 12+5 another is 2x-1 find the missing...

1/6x2 + 1/9x2+9x

# Permutations and Combinations

How do you solve this? Please include all steps. Thanks!   on the tv show american idol, a young rising star is eliminated each week. the first week, each of the 12 contestants sings...

# How do you solve this Algebra 2 problem?

In order to transform the vertex of y=x^2+4x+4 to the orgin, every point must be translated: a) 2 units left, b) 2 units right, c) 4 units left, d) 4 units right

# Compound Interest and Geometrical Sequences

\$1000 has been in a savings account where it has earned 5% interest per year from 1799-2014. How much money is in the account?   Please include all steps and show how you get from the...

# Synthetic Division

(6y^4 + 15y^3-28y-6

# Logarithmic help

A new truck costs \$35,000. The value of the truck depreciates 20% per year. Write an equation to model the depreciation and use the equation to determine how long it will take for the truck to have...

# Exponential and logarithmic functions help

1.) Log7 x^8 - log7 x^5 =11 2.) Log 1/2(1/64) 3.) Ln (x+2) =3 4.) Which is the inverse of f(x)=6^x? a. f^1(x)=6 log^6 b. f^1(x)= log 6x c. f^1(x)=(log x)/6 d. f^1(x)=...

# Exponential and logarithmic equation

Please help I don't understand what to do.    In 1990, there were 33,500 farms in North Dakota. In 2000, there were 30,800. A.) Find the value of k for the exponential function...

# the circle below is centered at points(2,-3),and the length of its radius is 2. What is the equation of the circle in standard form?

Its based on looking at the graph to answer the problem.

# how do you find explicit formula answer

11,1,-9,-19,-29