3,669 Answered Questions for the topic College Algebra

College Algebra

1d

I found a, how do I find b?

In 2003, 71 deer were introduced into a wildlife refuge area from which the population had previously been hunted to elimination. By 2006, the population had grown to 123 deer. If this population... more
College Algebra Math

2d

If the annual income from the investments is $ 10125 , how much was invested in each account?

Maricopa's Success scholarship fund receives a gift of $ 130000. The money is invested in stocks, bonds, and CDs. CDs pay 3.25 % interest, bonds pay 2.1 % interest, and stocks pay 11.2 % interest.... more
College Algebra Math Geometry Sat Math

4d

HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!

1) Suppose you invest money in two accounts. One of the accounts pays 4% interest annually, and the other account pays 5% interest annually. You have $ 2000 more invested in the account paying 4%... more
College Algebra

5d

If the annual income from the investments is $ 6340 , how much was invested in each account?

Maricopa's Success scholarship fund receives a gift of $ 105000. The money is invested in stocks, bonds, and CDs. CDs pay 5 % interest, bonds pay 5.9 % interest, and stocks pay 8.2 % interest.... more
College Algebra Math

5d

College Math 1314

The supply function and demand function for the sale of a certain type of DVD player are given by S(p)=140e^0.004p and D(p)=490e ^ -0.002p, where S(p) is the number of DVD players that the company... more
College Algebra Polynomials Zeros

5d

Find a fourth-degree polynomial with integer coefficients that has zeros 4i and −1, with −1 a zero of multiplicity 2.

Find a fourth-degree polynomial with integer coefficients that has zeros 4i and −1, with −1 a zero of multiplicity 2.
College Algebra Precalculus

6d

Logarithmic Functions

An unknown radioactive element decays into non-radioactive substances. In 400 days the radioactivity of a sample decreases by 64 percent.(a) Find the decay constant k. (Round your answer to 5... more

Show that B is the inverse of A.

A = -1/2 -5/4 B = 8 5 1 2 -4 -2To show that B is the inverse of A, we need to show that AB = I = BA.AB = -4 + ___ -5/2 + ___ ... more
College Algebra Math Calculus Precalculus

7d

Use the matrix capabilities of a graphing utility to solve (if possible) the system of linear equations. (Round your answers to two decimal places. If there is no solution, enter NO SOLUTION.

2x + 5y+ w= 15x + 4y + 2z - 2w= -72x - 2y + 5z + w = 2x - 3w = -1(x, y, z, w) = ______

7d

Find the complete solution of the system of linear equations.

Find the complete solution of the system of linear equations. Express your answer in terms of t where x=x(t), y=y(t), and z=t. { x + 4y - 2z = -3 2x - y + 5z = 12 8x + 5y + 11z = 30 }(x, y, z) =... more
College Algebra

9d

Algebra Question

Find C and a so that f(x)=Ca^x satisfies the given equation.Find C and a so that f(x)=Ca^x satisfies the given equation. f(-2) = 25/4,   f(2) = 1/100       a = ?C=?
College Algebra

9d

College algebra

A ball is thrown in the air from the top of a building. Its height, in meters above ground, as a function of time, in seconds, is given by ℎ(𝑡)=−4.9𝑡2+21𝑡+8. How long does it take to reach maximum... more
College Algebra Math Physics

10d

Rydberg formula question

Using the Rydberg formula, find the wavelength of the line in the Balmer series of the hydrogen spectrum for m = 3. The value of Rydberg constant is 1.097 × 107 m–1 and n = 2 for the Balmer series.
College Algebra

10d

Form a polynomial whose zeros and degree are given.

Zeros: 5Multiplicity: 1 ; 3, Multiplicity: 2Degree: 3
College Algebra

11d

Write two functions, f and g, such that ( f o g) (x) =-1/x+1 and such that neither function is identical to (f o g) (x) or x

Write two functions f and g, such that (f o g) (x) = - 1/x+1 and such that neither function is identical to (f o g ) (x) or xf(x) =g(x)=
College Algebra

11d

Write two functions, f and g, such that ( f o g) (x) =-1/x+1 and such that neither function to (f o g) (x) or x

Write two functions f and g, such that (f o g) (x) = - 1/x+1 and such that neither function is identical to (f o g ) (x) or cF (x) =g(x)=
College Algebra Algebra 1 Algebra 2 Algebra

12d

Stocks, Bonds, and CD Algebra Question

Maricopa's Success scholarship fund receives a gift of $ 115000. The money is invested in stocks, bonds, and CDs. CDs pay 2.75 % interest, bonds pay 3.4 % interest, and stocks pay 11.6 % interest.... more
College Algebra Math Calculus Precalculus

13d

Solve for X using the matrices below.

2A + 4B = −2XA = 8 -5 and B = 0 7 1 0 2 0 9 -2 -2 -1X = _____ _____ _____ _____ _____ _____
College Algebra Math Calculus Precalculus

14d

Solve for X using the matrices below.

2A + 4B = −2XA = 8 -5 and B = 0 7 1 0 2 0 9 -2 -2 -1X = _____ _____ _____ _____ _____ _____

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