# What value of x will give the minimum value for 9x^2 + 18x + 7?

23,150 results
1. ## Mathematics

What value of x will give the minimum value for 9x^2 + 18x + 7?

asked by Unknown on June 28, 2020
2. ## Algebra

Simplify (-24x^3+18x+6)/(6x+3) -4x^2+2x-2 4x^2-2x-2 4x^2+2-2 -4x^2+2x+2 I need a bit help on this. I don't know how to do it. I think the first step is divide 18x+6 with 6x+3 and 6x+3 divide by 6x+3. Am I on the right track? Please help

asked by The Great Undertale fanatic on June 13, 2019
3. ## Calculus

Give an example of a function with a critical point that is neither a maximum nor a minimum. Specify the relevant point(s). This is what I have and this is what I got wrong... A function with a critical point that is neither a maximum nor a minimum would

asked by Mia on October 2, 2016
4. ## History

Do you agree with Darwin's idea of natural selection. Why or why not. Give minimum of 3 examples. thanx

asked by Maryanne on October 25, 2008
5. ## physics

A football kicker can give the ball an initial speed of v_0 = 27.4 m/s. In order to score a field goal, the ball must go over the cross bar that is at a height of h = 3.44 m above the ground. If the kicker kicks the ball from a point d = 42.2 m from the

6. ## Calculus

A cylindrical tank is to have a capacity of 1000 m³. It is to fit into a foundry that is 12 m wide with a height of 11 m. The base of the tank will cost half as much as the top. The metal for the side of the tank will cost four fifths as much as the top.

asked by emma on June 10, 2019
7. ## Calculus

Find the values of x that give relative extrema for the function f(x)=3x^5-5x^3 A. Relative maximum: x= 1; Relative minimum: x=sqrt(5/3) B. Relative maximum: x=-1; Relative minimum: x=1 C. Relative maxima: x=+or- 1; Relative minimum: x=0 D. Relative

asked by Anonymous on January 11, 2015
8. ## calculus

Find the absolute extrema of the function (if any exist) on each interval. (If an answer does not exist, enter DNE.) f(x) = square root of (25 − x^2) (a) [−5, 5] minimum (x, y) = (smaller x-value) (x, y) = (larger x-value) maximum (x, y) = (b) [−5,

asked by Sagar on April 5, 2016
9. ## Math

Find the absolute extrema of the function on the closed interval. f (x) = x^3 − 12x, [0, 4] minimum (x, y) =( ) maximum (x, y) = ( ) I can't even give a setup cause I am lost please help!

asked by Malika on March 3, 2012

Can you check the following problems? 4. x^2 - 10x +25 = 9 x^2 - 10x + (25 -9) = 9 - 9 x^2 - 10x + 16 = 0 (x - 8)(x-2) = 0 x - 8 = 0, x - 2 = 0 x = 8, x = 2 5. x^2 - 6x + 9 = 49 x^2 - 6x + ( 9 - 49) = 49 - 49 x^2 - 6x - 40 = 0 (x -10)(x + 4) = 0 x - 10 =

asked by Alexis on November 1, 2016
11. ## calculus

there are no examples of this type of problem in my book so if you could help walk me through it - that would be extremely helpful. thanks ahead of time. Find the extreme values of the function on the interval and where they occur. 4) F(x)=³√(x); -3

asked by K.T. on December 15, 2014
12. ## Math

18x-(8x-7)=67

asked by Jordyn on September 24, 2009
13. ## algebra

8x^2-18x-5

asked by Anonymous on November 27, 2012
14. ## Algebra

Factor: -3x^2 - 18x + 15

asked by Carl on February 15, 2015
15. ## Jessica

Find absolute maximum and minimum for f(x)=(3x^3)−(18x^2)+27x−10 over the closed interval [2,4]. Thank you so much!!

asked by Math on November 22, 2012
16. ## Math

9x^2+16y^2-18x+64y-71=0 find the coordinates of the center, the foci, and the vertices of this ellipse. 9x^2+16y^2-18x+64y-71=0 9x^2-18x+16y^2+64y=71 9(x^2-2x)+16(y^2+4y)=71 9(x^2-2x+1)+16(y^2+4y+4)=71

asked by Anonymous on August 26, 2008
17. ## Math

i'm a bit stuck with this.. 145/18 = x + x^2 what does x equal to? multiply each term by 18, then re-arrange to get 18x^2 + 18x - 145 = 0 This quadratic does not factor, so use the quadratic formula to get your two answers.

asked by COFFEE on July 27, 2007

Please check my answer thanks :) Find the equation of 9 (2x-18)=36 9(2x)-9 (18) =36 18-162 =36 18-162 =36 18x162 =36 +162 +162 ------------------------- 18x =198 18x 198 ----------- 18 =18 x =11

asked by keleb on January 7, 2008
19. ## Calculus

Find any absolute maximum and minimum and local maximum and minimum for the function f(x)=x^3-4x+5 on the interval [0,5). Make sure to prove that these points are max/min values. THis is what I did. f'(x)=3x^2-4=0 x= +/- 2/sqrt3 -2/sqrt3 is outside of

asked by Janet on April 17, 2011
20. ## Math

Can someone help me with these questions? 1.What are the maximum and minimum values for Y=28(1.21)^x on the interval 0

asked by Jay on December 2, 2011
21. ## Algebra 2

The vertices of a feasible region are A(1,2), B(5,2), C(1,40. Write a function that satisfies each equation. a) A is the maximum and B is the minimum. b) C is the maximum and B is the minimum. c) B is the maximum and A is the minimum.

asked by Marilu on October 18, 2012
22. ## math

9x-y=28 18x-2y=56

asked by Anonymous on May 13, 2011
23. ## pre algebra

how to solve 18x - (8x - 7) + 67

asked by Brittnie on May 9, 2011
24. ## math

help my daughter has a math problem and came to me for help, I am lost.... what is the gcf for the following trinomial? x^3-18x^2+28x I am assumming you are trying to factorise we can simply take out an x to give: x(x^2-18x+28) the quadratic will not

asked by barbara on February 22, 2007
25. ## Maths

If the minimum value of f(x)=x^2+18x+a is the same as the minimum value of f(f(x)), what is the max value of a?

asked by KK on July 27, 2013
26. ## Algebra

checking problem Use FOIL to multiply: (6x – 1)(3x – 4) 6x*3x + 6x*(-4) + (-1)*3x + (-1)*(-4) = 6x*3x = 18x^2 6x*-4 = -24x -1*3x = -3x -1* -4 = 4 18x^2 – 24x -3x +4 = 18x^2 – 27x + 4

asked by John on October 22, 2007

A person on a bicycle is 100 meters west of a person in a car. the person on the bike starts to ride at 8 meters per second directly east and at the same time the person in the car starts to drive directly north at 18 meters per second. Write the distance

asked by Sam on March 17, 2011
28. ## math

when I have (2x^(3)-18x)-(2x^(3)) / (x^(2)-9) am I suppose to be left with -18x/(x^(2)-9) or is it just 18x? Please help and thanks!

asked by Blair on July 29, 2008
29. ## math!

determine two geometreic sequences whose first terms are 18x-9, 2x+8 and x-1 how would I go about and do this question? I have no idea! so a little help would be really helpful! thanks! A geometric sequence looks like a, ar, ar2, ar3, ..., arn, ... where a

asked by Anonymous on October 18, 2006
30. ## Math

Find the Least Common multiple of the two expressions: 24x^2-96 & 18x^2+18x-36

asked by Luke on April 11, 2013
31. ## Algebra 2

I had to solve this quadratic equation using the complete the square method. Did I do it correctly? The problem is 3x^2+18x+10= 0 (3x^2+18x+10)/3= 0/3 = x^2+6x+(10/3)=0 x^2+6x+(10/3)-(10/3)=0-(10/3) =x^2+6x= (-10/3( x^2+6x +(6/2)^2= -10/3+(6/2)^2

asked by Keith on October 18, 2015
32. ## Math

How can we factor trinomial: 36x^2+18x+0 Is thislike this: 18x(2x+1)

asked by Hanu on June 13, 2012
33. ## Pre-Cal

Classify the conic and write the equation in standard form: (1) 9x^2 + 9y^2 + 18x - 18y = 0 (2) 16x^2 + 16y^2 - 64x + 32y + 55 = 0 (3) 6x^2 + 2y^2 + 18x - 10y + 2 = 0

asked by strate a stoodent on April 21, 2009
34. ## algebra

give exact and approximate solutions to three decimal places for x^2+18x+81=49

asked by sam on July 11, 2010
35. ## algebra

Give exact and approximate solutions to three decimal places x^2+18x+81=1

asked by Denise on April 24, 2010
36. ## Inter. Algebra

what is the answer to 2 square root of 18x? Do you mean 2*(18x)1/2? What does it equal. What are we to do with the problem? DrBob222, My problem states 2 square root sign & 18x underneth it. If you could help me with this problem I'd really appreciate it.

asked by Andrea on December 2, 2006
37. ## Math

The expression (3x+4) (2x-6) is equavalent to? 3x(2x-6)+4(2x-6) multipy out brackets to give: 6x^2 - 18x + 8x - 24 collect like terms to get: 6x^2 - 10x - 24

asked by Mark on February 23, 2007

Deermine the derivative of f(x)=[(3x^2+1)^3+1]^2. Express your answer in simplified form. For this I got 54x^6+162x^5+54x^4+108x^3+18x^2+18x+2

asked by Kim on May 9, 2014
39. ## college algebra

y intercept: 3x^2+18x 0=3x^2+18x from here im lost

asked by kirs on April 23, 2009
40. ## Calculus

asked by Mike on October 22, 2012
41. ## Calculus (pleas help)

Find the inflection points of f(x)=6x^4+34x^3−18x^2+10. (Give your answers as a comma separated list, e.g., 3,-2.)

42. ## math algebra trig

For the graph of each function, find an equation of the line of symmetry and the coordinates of the vertex. Tell whether the value of the function at the vertex if a maximum or a minimum: a) y = -x^2 + 4x - 7; b) y = 2x^2 + 4x; c) y = -3x^2 - 18x + 5.

asked by CHEYANNE MARIE on May 5, 2012
43. ## Calculus

The function f(x)=(x^4)-(10x^3)+(18x^2)-8 is continuous on the closed interval (1,8). Find the absolute minimum and maximum values for the function on this interval. Please help me!!! And please show your work so that i understand!! Thank you!!

asked by Sam on March 17, 2011
44. ## algebra

1. How to find the numbers, if there are any, at which f has a realtive minimum. What is the realive minima? The graph that I have looks like W, it has point at -1 on the x axis, 1 on the y axis, and 1 on the x axis. Choices that I have: a. f has a

asked by Josie on September 1, 2007
45. ## Pre-algebra

Solve. 29x – 2(9x – 0.455) = 10x + 0.525 Give us you thinking on this so we can help you solve the equation. What is it you don't understand about solving this eqution? 29x –2(9x – 0.455) = 10x + 0.525 29x – 18x – 0.91 = 10x + 0.525 11x –

asked by Tammy Evert on July 16, 2006
46. ## Algebra

What polynomial could you subtract from 5x^3 - 12x - x^2 + 9 - 12x^5 - 6x^4 to give a difference of 19 + 8x^3 - 18x - 19x^5 - 2x^2 - 8x^4?

asked by Anonymous on October 19, 2014
47. ## math

What does "give a brief explanation as to what kind of solution(s) you expect the linear equation to have: 18x+1/2=6 (3x+25). Transform the equation into a simpler form if necessary" mean?

asked by Samantha on January 23, 2014
48. ## math

What does "give a brief explanation as to what kind of solution(s) you expect the linear equation to have: 18x+1/2=6 (3x+25). Transform the equation into a simpler form if necessary" mean?

asked by Samantha on January 23, 2014
49. ## math

Hi I can't remember how to figure this out. Can you give me an idea? In 1970, the minimum wage was \$1.60 per hour. In 2000, the minimum wage was \$5.15 per hour. When will the minimum wage be \$7.50 per hour?

asked by Jon on December 11, 2009
50. ## Algebra

Solve the system 9x-5y=119 18x-10y=238 Double both sides of the first equation and you have 18x-10y =238 which is the same as the second equation. Since the two equations are not independent, there are no unique solutions. Thee are an infinite number of

asked by Tabby on December 14, 2006
51. ## Calculus - Taylor

could you please help me with solving this problem? #1) Find the Taylor polynomial Tn(x) for the function 'f' at the number 'a'. f(x) = sqrt(3+x^2) ; a=1; n=2; my work so far: f (x) = sqrt(3+x^2) = (3+x^2)^(1/2) f ' (x) = (1/2)(3+x^2)^(-1/2) f '' (x) =

asked by COFFEE on July 28, 2007
52. ## Math

(2x-1)(3x-7)(4x+3) =6x^2-14x-33x+7 =(6x^2-19x+7)(4x+3) =24x^3+18x^2-126x+28x+21 =24x^3+18x^2-88x+21

asked by Anonymous on December 13, 2014
53. ## BobPursley..here it is:

Problem 1: (x-2)/(3x+4) - 6x/(x+1) What I did: Common denominator is: (3x+4)(x+1) (x-2)(x+1)/(3x+4)(x+1) - 6x(3x+4)/(x+1)(3x+4) [(x-2)(x+1) - 6x(3x+4)] / (x+1)(3x+4) (x^2 - x - 2 - 18x^2 - 24x) / (x+1)(3x+4) x^2 - 18x^2 = -17x^2 -x - 24x = -25x (-17x^2 -

asked by Margie on March 4, 2007
54. ## Algebra

What polynomial could you subtract from 5x^3 - 12x - x^2 + 9 - 12x^5 - 6x^4 to give a difference of 19 + 8x^3 - 18x - 19x^5 - 2x^2 - 8x^4? Is the answer k (the polynomial) = 7x^5 + 2x^4 - 3x^3 + x^2 + 6x - 28?

asked by Anonymous on October 14, 2014

What polynomial could you subtract from 5x^3 - 12x - x^2 + 9 - 12x^5 - 6x^4 to give a difference of 19 + 8x^3 - 18x - 19x^5 - 2x^2 - 8x^4? Is the answer k (the polynomial) = 7x^5 + 2x^4 - 3x^3 + x^2 + 6x - 28?

asked by Anonymous on October 15, 2014

Please check my answer thanks :) Find the equation of 9 (2x-18)=36 9(2x)-9 (18) =36 18-162 =36 18-162 =36 18x162 =36 +162 +162 ------------------------- 18x =198 18x 198 ----------- 18 =18 x =11

asked by keleb on January 7, 2008
57. ## Caluclus

Find the absolute maximum and absolute minimum of f on the interval (-1,2]: f(x)=(-x^3+x^2+3x+1)/(x+1) A. Maximum: (1, -2); Minimum: (-1, 2) B. Maximum: (1, -2); Minimum: None C. Maximum: None; Minimum: None D. Maximum: None; Minimum: (-1, 2) E. None of

asked by Anonymous on January 11, 2015
58. ## Linear Algebra

Help me find my error! a)Write down the equation of the plane passing through the point (1,5,7) and parallel to the lines. Line A: Line B: Point x = 3- 2t x = 2 - 2t y = 1 - 5t y = 3 - 2t z = 2 - t z = 1 + 4t Parametric equation of the plane = + t1 + t2

asked by Leo on December 6, 2018
59. ## Inter. Algebra

Count Iblis what is the answer to 2 square root sign 18x? The instructions say to simplify or reduce. 2*(18x)1/2= 2*(9*2)1/2= 2*3(2)1/2= 6*(2)1/2 If you can leave it in this form, the above is the way to end. If you are to continue to a final answer, then,

asked by Andrea on December 2, 2006
60. ## Algebra

How do I factor out the greatest common monomial factor? 1) 9m^7 - 3m^2 2) 12a^5 + 8a 3) I need to describe and correct the error in facotring out the greatest common monomial factor of 18x^8 - 9x^4 - 6x^3 18x^8 - 9x^4 - 6x^3 = 3x(6x^7 - 3x^3 - 2x^2) is

asked by Scott on March 12, 2013
61. ## Math-Linear Equations

Please let me know if I understand this correctly. Find the slope and the y-intercept of each equation: 1)y-9x= 1/2 +9x= 1/2 + 9x y= 1/2 + 9x slope:9; y-intercept: 1/2 2)2y-6=3x +6 +6 2y=3x + 6 - - 2 2 so then: y=3x+3 3) -2y=6(5-3x) -2y= 30-18x - -- -2 -2

asked by Kate on January 16, 2012
62. ## Please check my Calculus

1. Find all points of inflection: f(x)=1/12x^4-2x^2+15 A. (2, 0) B. (2, 0), (-2, 0) C. (0, 15) D. (2, 25/3), (-2, 25/3) E. none of these I got D. I found the second derivative and equaled it to 0 and solved for x. I plugged the x values in to get my

asked by Anonymous on January 12, 2015
63. ## Math

a)Write a function o represent the area of the rectangle. one side - 5x+15 other side - 31-2x b) Graph the function- lebel x and yint c)what dp the x-intercepts represent in this situaltion? d)Does the funtion have a maximum value in this situaltion? Does

asked by Emmanuel on January 1, 2016
64. ## math

Give a five number summary. 1.74, 1.76, 1.78, 1.78, 1.80, 1.82, 1.83, 1.83, 1.85, 1.85, 1.86, 1.88, 1.88, 1.92 minimum: 1.74 maximum: 1.92 what are the other summmaries am I missing ?

asked by Anonymous on September 4, 2009
65. ## Calculus

Use analytical methods to find the exact global maximum and minimum values of the function f(x)=8x-ln(4x) for x >0. If a global maximum or minimum does not exist, enter the word NONE. For the global maximum at x=none, But for the Global minimum at x=? Is

asked by George on October 16, 2008
66. ## Math/Algebra...can you check this please...

f(x)= -4(x+5)^2+3 The vertex is : -5,3 The line of symmetry is x= 3 The maximum/minimum value of f(x)= -5 Is the value of f(-5)=3, a minimum or maximum? Minimum Graphing would open from the bottom going up on the negative side.

asked by Angel Eyes on August 22, 2010
67. ## English

Minimum is best described as A. great number C.equal number The other answer choices are cut off but A and C don't mean minimum right? Because minimum is the smallest possible amount

asked by Jerald on January 15, 2013
68. ## Math

Maximum: 57 Minimum: 50 Median: 54 Mode: 56 Give 12 sets of numbers using the above senarios?? Please Help!!

asked by James on February 3, 2009
69. ## Physics

A 150N block rests on a table. The suspended mass has a weight of 73N. a) What is the magnitude of the minimum force of static friction required to hold both blocks at rest? Answer in units of N b)What minimum coeﬃcient of static friction is required to

asked by Peter on October 21, 2012
70. ## Physics

A 150N block rests on a table. The suspended mass has a weight of 73N. a) What is the magnitude of the minimum force of static friction required to hold both blocks at rest? Answer in units of N b)What minimum coeﬃcient of static friction is required to

asked by Peter on October 21, 2012
71. ## math!

for f(x)=x^2+kx+k, determine all values of k such that f(x)>0 The minimum of f(x) occurs when f'(x) = 2x + k = 0, x = -k/2 The value of f(x) at that minimum is f(-k/2) = k^2/4 -k^2/2 +k = k^2/4 + k That minimum is >0 if k>0 or k< -4

asked by moi on October 29, 2006
72. ## Calculus (pleas help!!!)

Find the absolute maximum and absolute minimum values of the function f(x)=(x−2)(x−5)^3+11 on each of the indicated intervals. Enter -1000 for any absolute extrema that does not exist. (A) Interval = [1,4] Absolute maximum = Absolute minimum = (B)

73. ## Calculus (pleas help!!!)

Find the absolute maximum and absolute minimum values of the function f(x)=(x−2)(x−5)^3+11 on each of the indicated intervals. Enter -1000 for any absolute extrema that does not exist. (A) Interval = [1,4] Absolute maximum = Absolute minimum = (B)

74. ## math

Jill Moran has grades of 95 and 87 on her first two calculus tests. What is the minimum score on her third test that will give her an average of at least 90?

asked by Jay on September 18, 2017
75. ## Algebra1

y=x^2+4x+11 can be written as y=(x+2)^2+7 by completing the square.Written this way one can that the function has a ____. A.) minimum value of 7 B.) minimum value of -2 C.) minimum value of -2 D.) maximum value of 7

asked by Kesha on July 20, 2015
76. ## Algebra

Find the axis of symmetry for y=x^2+4x-7 Find the axis of symmetry for y=3x^2-18x+1 Find the axis of symmetry for y=5x^2+10+3 Determine if the vertex is a maximum or minimum and identify it y=2x^2-3 Determine etc etc for y=-x^2-2x Determine etc etc for

asked by Breona on November 28, 2012
77. ## Calculus

Find the minimum value of the following function: h(x)= x-(12(x+1)^(1/3) -12) on the interval [0, 26] Honestly, I have found by graphing that the minimum value is at the coordinate point (9,-3), but I need to do this in a way that uses a more

asked by Duncan on April 17, 2017
78. ## Algebra 2

The vertices of a feasible region are A(1,2), B(5,2), C(1,4). Write a function that satisfies each equation. a) A is the maximum and B is the minimum. b) C is the maximum and B is the minimum. c) B is the maximum and A is the minimum.

asked by Marilu on October 18, 2012
79. ## Math

X^2-18x+81=0

asked by Hi on April 20, 2020
80. ## algebra

2x^3+7x^2-18x-63

asked by Alexis on September 3, 2012
81. ## math

x^3-18x^2+80=0

asked by Anonymous on September 16, 2014
82. ## math

2x^2+18x-20=0

asked by chris on September 6, 2012
83. ## math

x2+18x+81

asked by Anonymous on August 22, 2012
84. ## Math

7x^2-18x-7/(x-4)(2x^2-6x+3)

asked by Emma on April 9, 2011

x² + 18x -4 = 0

asked by Anonymous on April 23, 2011
86. ## algebra 2

x^2-18x-40=0

asked by anonymous on December 1, 2014
87. ## math

18x - 16 + 6( 2 - 2x) = 50

asked by frances on May 27, 2011
88. ## math

2x^3+7x^3-18x-63

asked by Alexis on September 3, 2012
89. ## algebra

18x+4y=-10 9x-7y=-23

asked by matthew on September 4, 2014
90. ## math

6(x-1)=18x

asked by babyc36 on August 19, 2013
91. ## math

5/9x+2-1/6x=11/18x+1/3

asked by karen on September 26, 2012
92. ## Calculus

A person needs to swim to shore from Point A and walk to Point B. They can swim at 2mph and walk at 4 mph. Write an expression for the total time their journey will time their journey will take in terms of x. Then use your graphing calculator to estimate

asked by Joe on August 30, 2012
93. ## math

How do I solve 18x - 6x + 2x

asked by tomeisha on August 31, 2015
94. ## algebra

18x-6=13x+9

asked by Anonymous on November 27, 2013
95. ## partial fraction

if f(x) ax^2+bx+c , g(x) :1/3x^2+2 and fg(x)= 18x^4+24x^2+11/(3x^2+2)^"

asked by kingwendu on December 16, 2011
96. ## maths

x3+6x2+18x+13=0

asked by jenny on October 15, 2012
97. ## math help!

Solve: 18x=9*10

asked by marie on January 24, 2013
98. ## math

24x-10=18x-4

asked by maeve on March 28, 2010
99. ## algebra or algebra1

One of the factors of 3x^2+18x+24

asked by sea on February 21, 2016
100. ## algebra

Solve 18x=45+3x^2

asked by Anonymous on April 18, 2020