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104 Answered Questions for the topic Solutions

02/22/15

Please help!! Select the approximate values of x that are solutions to f(x) =0, where f(x) = -9x^2 +4x+7

a) {-1.29,0.57} b) {-9,4} c) {-0.44,-0.78} d) {-0.69,1.13}  

02/22/15

Please help me solve this!! Select the approximate values of x that are solutions to f(x) =0, where f(x) = -6x^2 +2x+4

a) {-0.67,1.00} b) {-6,2} c) {-0.33,-0.67} d) {-1.50,0.50}  

02/22/15

Need help! Select the approximate values of x that are solutions to f(x) =0, where f(x) = -4x^2 +5x+7

a) {2.09, -0.84} b) {-4,5} c) {-1.25,-1.75} d) {-0.57,0.71}

How much of each solution should be used if 21 gallons of 4% solution are needed?

A mixture of 4% disinfectant solution is to be made from 5% and 2% disinfectant solutions. How much of each solution should be used if 21 gallons of 4% solution are needed?
Solutions Algebra Linear

11/25/14

Describe all solutions of Ax=0

Let A= [1 -4  5  4              2 -8 10 8] Describe all solutions of Ax=0.   

11/24/14

Determine the values of K for the equation

Determine the values of K for which 3x2+kx+12=0 has each type of solution justify each answer. a) exactly one real solution b)two imaginary solutions c)two real solutions
Solutions Algebra Linear

11/16/14

Describe all solutions of Ax=0

Let A= [1 -4 5  4            2 -8 10 8]   Describe all solutions of Ax=0 x=x2 ?+x3 ? +x4?  
Solutions

11/09/14

select the solution

Consider the equations:f(x) = -6x - 1 and g(x) =4x^2Select the solution for (fg) (x). A. -6x -1 +4x^2   B. -24x^3 - 4x^2   C. -24x^2 - 1   D. -24x^5
Solutions Algebra Linear

09/14/14

determine the value of k for which the system has no solutions

determine the value of k for which the system  x+y+5z=-3 x+2y-2z=3 4x+11y+kz=31 has no solutions.    k=?
Solutions Math Algebra

08/27/14

5(2x-1)+x+17=5x+6(x+2)

i need help determining if there are no solution, one solution l, or an infinite number of solutions.
Solutions Algebra 1 Algebra

08/27/14

3(x-1)+x=4(x+2)

I need help figuring out if there are no solutions, one solution or an infinite number of solutions.
Solutions

06/28/14

Select the approximate values of x that are solutions to f(x) = 0, where f(x) = -8x2 + 4x + 7.

{–1.14, 0.57} {-8, 4} {–0.50, –0.88} {–0.72, 1.22}
Solutions Algebra 1 Functions

05/07/14

Graph f(x)

How can the graph f(x)=0.3|x-6|+7 be obtained from the graph of y=|x|?   a) Shift it horizontally 3 units to the left. Shrink it vertically by a factory of 0.6. Shift it 7 units upward b) Shift... more
Solutions Algebra 1 Functions

05/07/14

functions question

Let f(x)=3x-1 and g(x)=x^2+4   find (f g)(-2)

05/07/14

two word problems

  1)A car company charges $31 per day to rent a particular type of car and $0.16 per mile. Juan is charged $47.96 for a one day rental. How many mile did he... more

05/07/14

word problem library

The number o books in a small library increase according to the function B=6,700e0.03t, where t is the measure of years. How many books will the library have after 2 year(s)?   a) 7,693 b)... more
Solutions Algebra 1 Math Help

05/07/14

solution of the equation

Determine the nature of the solutions of the equation: 5x^2-6x=-9   a)Two real solutions b) No solutions c)One real solution d)two solutions with imaginary parts 

04/23/14

Help please please

Solve (x^2-9)/x<=0 and write interval notation for the solution set. Show careful algebraic work/explanation.    
Solutions

03/13/14

What would be a line that is perpendicular to y=x?

I thought it y=-x+6 but don't no how to work it out

01/28/14

Word Problem

A solution is 10% citric acid. if 3 liters of a 20% citric acid solution are added to it, the result is a solution this is in a ratio of 13 parts citric acid to 102 parts "other than citric acid".... more
Solutions Trigonometry Trig

01/06/14

Find all solutions in the interval [0,2pi): sin2x=cosx

This is for my trig class, thanks for the help! If you could, could you please show all your work? Thanks again!
Solutions Math Trigonometry

01/06/14

Find all solutions in the interval [0,2pi): tan^2x+(sqrt3 - 1)tanx-sqrt3 = 0

This is for my trig class, thanks for the help! If you could, could you please show all your work? Thanks again!
Solutions Math Trigonometry

01/05/14

Use the quadratic formula to find all solutions in the interval [0,2pi): tan^2x-6tanx+4=0

This is for my trig class, thanks for the help!
Solutions Math Trigonometry

01/03/14

Find all solutions in the interval [0,2pi): 4sin^2x=1

This is for my trig class. Thanks for the help!

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