Use Regula Falsi Method to find a real root of the equation xe^x  2=0 correct to two decimal places within the interval [0,1].
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Math
1. Rosa, Roberto, Andrea, and Inno find an estimate for square root 10. Who has proposed the best solution? (1 point) Rosa: "Use square root 9 and square root 25 to estimate." Roberto: "I will use square root 4 and square root 9." Andrea: "It should be

MATH
1. Which of these numbers can be classified as both real and rational? 1/2 1.016879413894 Square root: 5 0.89089908999 2.Which is both a real number and an integer? Square root 7 0.15 15 1/3 3. What is an example of an irrational number? Sqre root:

Calc
Find the linear approximation of the function g(x) = fifth root(1 + x) at a = 0. g(x)≈ 1+(x/5) Correct: Your answer is correct. Use it to approximate the numbers fifth root (0.95) and fifth root (1.1) (Round your answers to three decimal places.)

Math Help!!!
1. Which of these numbers can be classified as both real and rational? ½ 1.016879413894 Square root of 5 0.89089908999 2. Which is both a real number and an integer? Square root of 7 0.15 15 1/3 3. Which is an example of an irrational number? Square

Alegbra 2
Use the rational root theorem to list all possible rational roots for the equation. X^3+2x9=0. Use the rational root theorem to list all possible rational roots for the equation. 3X^3+9x6=0. A polynomial function P(x) with rational coefficients has the

math
1. Rosa, Roberto, Andrea, and Inno find an estimate for the square root of 10. Who has proposed the best solution? a. Rosa: "Use the sqaure root of 9 and the square root of 25 to estimate." b. Roberto: "I will use the square root of 4 and the sqaure root

mathematics
Find a real root of the equation cos(x) = 3x − 1 correct to four decimal places by using method of successive approximation.

calculus
Use Newton's method to approximate the indicated root of the equation correct to six decimal places. The positive root of 3sinx = x^2

math
For what value of k does the equation x2 + kx + 9have: Two distinct real roots One real root No real root

calculus
3x4 − 8x3 + 5 = 0, [2, 3] (a) Explain how we know that the given equation must have a root in the given interval. Let f(x) = 3x4 − 8x3 + 5. The polynomial f is continuous on [2, 3], f(2) = < 0, and f(3) = > 0, so by the Intermediate Value Theorem,

Math
Find the real root of the equation 3xcosx1=0 correct to four decimal places using the Newton Raphson Method.

Algebra 2a
Help please! 1. What are the real or imaginary solutions of the polynomial equation? x^452x^2+576=0 A) 4,4 B) 4,6 C) 4,4,6,6 D) no solutions 2. What are the real or imaginary solutions of the polynomial equation? x^3=216 A) 6,3+3i(sq root of 7), and

Algebra
which of these numbers can be classified as both real and irrational? 1. 5.858585858 2. 63.4 3. root 21 4. root 36 which is both a real number and an integer? 1. 23 2. 1/4 3. root 27 4. 3.402538 which of these number is classified as both real and

PreAlgebra
Unit 4, Lesson 2  Real Numbers (Connexus Academy) 1 point for each question (aka one answer each) 1. Which of these numbers can be classified as both real and irrational? A. 5.85 B. 63.4 C. Square root 21 *** D. Square root 36 2. Which is an integer? A.

Math
Find the discriminant for the quadratic equation f(x) = 5x^2  2x + 7 and describe the nature of the roots. discriminant is 144, one real root discriminant is 136, two complex roots

Algebra
Use the quadratic formula to solve the equation. Give exact answers: 2x^2 1 = 6x. The choices are: a) 3 + square root(7)/2, 3  square root(7)/2 b) 3 + square root(11)/2, 3  square root(11)/2 c) 3 + square root(7)/2, 3  square root(7)/2 d) 3 + square

Math
Th equation x^3  x^2  6 = 0 has one real root, denoted by a. Find by calculation the pair of consecutive integers between a lies.

Math
Use Regula Falsi Method to find a real root of the equation xe^x  2=0 correct to two decimal places within the interval [0,1].

numerical methods
Consider a spherical storage tank containing oil. The tank has a diameter of 8 ft. You are asked to calculate the height h to which a dipstick 10 ft long would be wet with oil when immersed in the tank when it contains 6 3 ft of oil. The equation that

Pre Calc
Write an equation to a polynomial function that has the following properties: Fourth degree equation Lead coefficient is 2 Two negative real roots and one positive real root The positive real root has multiplicity of 2

PreAlgebra
1. Rosa, Roberto, Andrea, and Inno find an estimate for the square root of 10. Who has proposed the best solution? A. Rosa: "Use the square root of 9 and the square root of 25 to estimate." B. Roberto: "I will use the square root of 4 and the square root

MATH
1. Rosa, Roberto, Andrea, and Inno find an estimate for square root 10. Who has proposed the best solution? (1 point) Rosa: "Use square root 9 and square root 25 to estimate." Roberto: "I will use square root 4 and square root 9." Andrea: "It should be

math
1. Solve for the indicated letter D=4e, for e The solution is e= 2. G(x) = 6/(65x) Choose the correct domain below {xx is a real number and x ≠0} {xx is a real number and x≠6/5} {xx is a real number and x≥6/5} {xx is a real number and x ≠6} 3.

maths2
Use the discriminant to determine the number of real roots the equation has. 7x2 + 3x + 1 =0 A. One real root (a double root) B. Two distinct real roots C. Three real roots D. None (two imaginary roots)

Math
Select all possible values for x in the equation. x cubed=375. 5*the cubed root of 3 the cubed root of 375 75*the cubed root of 5 125*the cubed root of 3 I am trying to do a practice test to prepare for my real test tomorrow and I don't understand the

Math
Using the words listed below fill in the blanks with the correct number type Real Number, Rational Number, Integer, Whole Number, Irrational Number 3) 0.12  Rational and Real number I am not sure about the rest. Am I correct on this? 4)

trig
The equation f(x) = 3x^3 + 10x^2  16x  32 has a root at x = 4 a) Find the depressed equation using synthetic division and the root given. Factor out any constants that may appear. b) Factor the depressed equation (which is now a quadratic) using any

algebra
Use the completing the square method to transform the equation [x^2 + 2x = 13 into an equation of the form (x + 3)^2 = b where a and b are real numbers. What are the values of a and b?

Math
Which describes the number and type of roots of the equation x^2625=0? A)1 real root, 1 imaginary root B)2 real roots, 2 imaginary roots C)2 real roots D)4 real roots I went with A sqrt x^2= x (which would be the imaginary) and sqrt 625= 25 (the real)

mathematics
Use the discriminant to determine the number of real roots the equation has. 3x2 – 5x + 1 =0 A. One real root (a double root) B. Two distinct real roots C. Three real roots D. None (two imaginary roots)

Calculus
Q.a.Find the stationary points on the graph of y=12x+3x^22x^3 and sketch the curve. b.How does your sketch show that the equation 12x+3x^22x^3 =0 has exactly three real roots. c.Use your graph to show that the eequation 12x+3x^22x^3 = 5 also has

Algebra
I think that the goal is to get rid of the 5th root in this case. I know that I have to make whatever is under or in the root in this case the number is X equal some number to the fifth power. I am supposed to use the rule a^(m/n)= n (the nroot) (don't

college math
hello i just want a answer in these question: please. im begging! I. Use Newton’s method to approximate the real root to 4 decimal places. 1. X^33X+1=0 2 . X^3X2=0 3. 2X3SINX=0

calculus
Consider the equation x^5cos(pi x)=0 . We can use the Intermediate Value Theorem to prove that the given equation has a root between 0 and 1. Answer the following questions. 1.show equation can’t have two real roots between 0 and 1. 2.Use Newton's

Calculus  Newton's Method
Use the Newton's Method to approximate the real root of the equation: f(x)=x2+cosx=0 a) What is the iterative equation of Newton's method of the given equation? b) Iterate the equation with starting point x1=5 until you get a repetition of the four digits

math
I HAVE THESE ANSWERS FOR THE PROBLEMS. COULD YOU DOUBLE CHECK PLEASE, THIS IS A PRACTICE QUIZ WHICH ISN'T A GRADE IT JUST HELPS ME GET READY FOR THE TEST. 1) a 2) b 3) d 4) a 5) d 1. Solve x^3 + 6x^2 + 13x + 10 = 0. a) –2 + 2i, –2 –2i, –2 b) 2 + i,

Algebra II
Which describes the number and type of roots of the equation x^2 625=0? A. 1 real root, 1 imaginary root B. 2 real roots, 2 imaginary roots C. 2 real roots D. 4 real roots. I have x^2 = 625 x = 25 answer: 2 real roots (25 or 25) Is this correct? Thanks

algebra
Determine the value(s) of k for which x^2+(k2)x2k=0 has equal and real roots. a x^2 + bx + c = 0 has two different roots if the discriminant D defined as: D = b^2  4 a c does not equal zero. If D = 0 then there is one root. That root is then real if b/a

Math
i^6 = (i^2)^3 = (1)^3 = 1 The square, not the square root of 1 is 1. :) B.t.w., can you prove that 1 times 1 is 1? Hint, try to prove first that for any number X: 1 times X equals X How do you find the square root of 1? The square of any real

Applied Calculus......
Use the method of bisection to find the root of the equation x^5 + 3x − 7 = 0 accurate to two decimal places.

math (final trig problem)
Solve for x on the interval [0,π/2): cos^3(2x) + 3cos^2(2x) + 3cos(2x) = 4 I havent done trig for a while so what exactly does that mean in solving for x on that interval and how would i go about doing that? Where are you getting these tough trig

Using Matlab
imagine you have a simple calculator that can only do addition,subtraction,multiplication and division. show how you can still use it to calculate the cube root of a given number, ie a^1/3, as follows: a)show that newton raphsons method for solving the

gse 122
(1) y varies partly as D an partly as the cube root of D.when Y=6, D=27 an when Y=11,D=1/8.find Y when D=3. Correct to 2 decimal point. (2) using completing the square method find the root of the equation 8x+6x5=0

Algebra
Hello Reiny, please check these problems for me and if they are not right WOULD YOU PLEASE HELP ME WITH THE CORRECT ONES THANKS!!! 1. Slove for X, wher X is the real number, square root 5x + 9= square root 9x + 13= 27 2. Find the value: ^3 square root 27=

algebra
which method do you use to solve this equation.(x1)^2=7. Is it the factoring method or the sqare root method I would take the square root of each side. (x1)= + sqrt7 Now for the factoring method: (x1)^2=7 (x1)^27=0 you have a difference of two

Physics/Statistics
We're actually learning propigation of error in my chem class, but it seems to be used equally as much in Physics/Stats. My teacher showed us two methods of doing it: REAL Method (Addition/Subtraction): square root[(error absolute 1)^2 + (error absolute

Math
How many real roots does f(x) = x^3+5x+1 have? x^3 = odd polynomial = at least 1 real root Can I follow Descartes' rule for this? No sign change, so there aren't any positive zeros. when I sub in x for x (x)^3+ 5(x) + 1 = x^35x+1 Then there is one

Precalculus
For our homework we had to read this one section which demonstrated the location principle (just in case this has a different name, I'll post it here:) "If P(x) is a polynomial with real coefficients and a and b are real numbers such that P(a) and P(b)

algebra
1.)correct 2.)wrong> the first term is wrong 4(3a^2)^2 = 36a^4 3.) not sure on this one 4.) wrong>  square root of six is not a solution Hope this Helps! 1)find p(3)if p(x)=4x^35x^2+7x10 =184 2)If r(x)=4x^23x+7,find r(3a^2) =12a^49a^2+7

Algebra
Find all real or imaginary solutions to equation. Use the method of your choice. 3v^2+4u1=0 reposting for help

math
which of these numbers can be classified as both rational and real? a. 1/2 b. 1.016879413894 c. square root of 5 d. 0.89089908999 which is both a real number and an integer? a. square root of 7 b. 0.15 c. 15 d. 1/3 what is an example of an irrational

Algebra 2
A sound wave is modeled with the equation y= 1/4 cos2pi/3 theta. a. Find the period. Explain your method. b. Find the amplitude. Explain your method. c. What is the equation of the midline? What does it represent? a) Period: 2pi/b 3 units T= 2pi/2pi/3 =

algebra
1)Write the expression 9n^6+7n^36 in quadratic form,if possible A.9(n^3)^3+7n^36 B.9(n^2)^3+7(n^2)6 C.9(n^3)^2+7(n^3)6 D.not possible I'm thinking C on this one but im not sure 2)solve b^4+2b^224=0 A.2,square root of 6,square root of 6,2 B.square

algebra,math
Solve the equation. Check both solutions and only write the real solution. the square root of 6m minus 5 = m A. {1} B. {5} C. {1, 5} D. no real solution I think its B

Math
Using nonperfect square method,find the square root of 418 correct to two decimal places, showing workings.

Numerical
Problem (2): Use Newton's Method to find the only real root of the equation , correct to 9 decimal places, and take an initial guess x0 = 1.5.

Pure Mathematics
1) i) use an algrbraic method to find the square root of 2+i√5. give your answer in the form x+iy, where x and y are exact real numbers ii)hence find in the form x+iy where x and y are exact real numbers, the roots of the equation z^44z^2+9=0 iii) show

Calculus 1
Use Newton's method to approximate the indicated root of the equation correct to six decimal places. The root of x^4 − 2x^3 + 5x^2 − 5 = 0 in the interval [1, 2]

algebra
could someone please check these roblems for me and if they are not rightWOULD YOU PLEASE HELP E WITH THE CORRECT ONES THANKS!!! 1. Slove for X, wher X is the real number, square root 5x + 9= square root 9x + 13= 27 2. Find the value: ^3 square root 27= 9

Calculus Assignment
Hey there. Okay well I just started first year university and we got an assignment to sorta brush up our rememberance of everything and well...I'm not remebering to well. If anyone can help me with this question that would be great. Thanks. The secant

Calculus
Find the exact real solutions, if any, of this quadratic equation. Use any method. If there is no real solution enter NONE in each box. 2x^25x+3=0 Is the smaller value none andthe larger value none.

Math 8R  HW Qs. Check
Find a real number between (2)2 and square root of 25 (2)2 = 4 square root of 25  5 a) 3 b) 3.998 c) 4.225 My answer is a. Am I correct.

MATH (SURDS)
we have been asked to prove that it is possible to determine the value of a surd using either similar figures or Pythagoreans theorem. we have been shown how to construct the surd using a compass and ruler. but we now have to prove that our method is

Math
For the following equation, state the value of the discriminant and then describe the nature of the solutions. 9x^2+6x2=0 what is the value of the discriminant? Which one of the statements below is correct? A) the equation has two imaginary solutions. B)

PreCalc/Trig...
Helpp needed, this is sort of confusing me. Describe the nature of the roots for this equation. 2x^2x+1=0 A. Two real, rational roots B. Two real, irrational roots C. One real, double root D. Two complex roots

maths
which solution is the correct for this equation 4x^3  3x = 15 1.8, 1.7, 1.6, 1.5, 1.5, 1.6, 1.7, 1.8 ?? What is your thinking, and why? Have you considered graphing y= 4x^3 3x 15 ? Kat, what level of study are you at. This is an equation which can

Calculus
The equation 10(x1)(x2)(x3) = 1 has three real solutions a

Algebra2
Find the polynomials roots to each of the following problems: #1) x^2+3x+1 #2) x^2+4x+3=0 #3) 2x^2+4x5 #3 is not an equation. Dod you omit "= 0" at the end? #2 can be factored into (x+1)(x+3) = 0, so the roots are x=1 and 3. #1 Use the quadratic

Math
1) Solve equation 3r+5 _____ + 2 = 2r to find the value of r? 2 A. 2 1/7 B. 3 2/3 C. 15 D. 10 2) which is these is a rational number. A. Sq root of 14 B. sq root of 9 C. sq root of 34 D. Sq root of 72

Algebra
Find all positive values for k for which each of the following can be factored. X^2xk (Your answer seems to be the same as the other problem x^2+xk ) Is this correct too? Consider your equation to be in the form ax^2 + bx = c = 0. It can be factored

calculus
Find a rational function f : R → R with range f(R) = [1, 1]. (Thus f(x) = P(x) /Q(x) for all x belongs R for suitable polynomials P and Q where Q has no real root). R(real numbers)

Precalculus
"An aquarium with length x, width x10, and height x5 holds about 750 cubic feet of water. Find all real solutions of the equation (I wrote it) 750 = x(x10)(x5)." I got the volume equation correct, right? I've tried dividing the factors of 750 by the

Math
Show that the equation x = 1/5(x^4 +2) has two real roots, both of which are positive. Evaluate the smaller root correct to 3 decimal places, using Newton‘s method.

Math
When Synthetically dividing to find a real root out of all Possible Roots, what must the remainder be in order to prove that the PR is an actual root? A.1 B. 0 C.1 D.Sq root of 1 E. i My answer is B. 0. Am I correct?

Numerical Analysis
Using the bisection method, Newton’s method, and the secant method, find the largest positive root correct to three decimal places of x3 − 5x + 3 = 0. (All roots are in [−3,+3].)

math
Could you please solve so I can double check my answers for the practice quiz? Thank You!! 1. Solve x^3 + 6x^2 + 13x + 10 = 0. a) –2 + 2i, –2 –2i, –2 b) 2 + i, 2 – i, –2 c) –2 + i, –2 – i, –2 d) 2 + 2i, 2 – 2i, –2 2. Find the

Math
For what value of k does the equation x2 + k = kx – 8 have: Two distinct real roots One real root No real root

Math
Write a program in C to find a root of a given equation using Secant Method. Perform five iterations to obtain the smallest positive root of the equation f(x) = sin x + 2tanx. Verify your answer with the program written by you. Please post the solution....

calculus
Use Newton's method to solve the equation sec x = 4 in the interval x in (0, pi/2). In other words, use Newton's Method to compute arcsec(4). (You need to make a good initial guess for the root otherwise Newton's method will probably fail. Please justify

physics
I was wondering if this formula is dimensionally correct: v = Square root FX/m divided by mass v= m/s F= kgm/s^2 X = meters divided by mass (kg) v = root kgm * m s^2  kg My half solution: m/s = root kgm^2 s^2  root kg m/s = m/s root kg  the

algebra
The equation f(x) = 3x^3 + 10x^2  16x  32 has a root at x = 4 a) Find the depressed equation using synthetic division and the root given. Factor out any constants that may appear. b) Factor the depressed equation (which is now a quadratic) using any

math
Here's my question: Determine if each system has one, two, or no solutions. (Show your work  3 marks each) a)y=2x^22x+1 and y=3x5 b)y=x^2+3x16 and y=x^28x18 Here's my work on the question: a) x=(b plus/minus sign (square root b^24ac)/(2a) x=(2

math
Still having problems solving this... 2x(2x + 1)^2 = 312 I started with: 2x(2x+1)(2x+1)312 = 0 2x(4x^2+4x+1)312 = 0 8x^3+8x^2+2x 312 = 0 Now what? If you don't have to solve for x, then then you have the final answer! If you have to find x: then you

Maths integration
Please help! These 2 questions are very similar, and i tried to do completing square method, but i cant get the correct answer! I'm trying to get the dy/dx to be a complete square thingy to show that the value is always greater or equal to 0. 1. Show that

college math
I'm hoping I did thesse right. Solve each quadratic equation. (I don't know how to do symbols on here so i'll write it out in word form) The equation is: x squared + 3x+4=0 I said its not possible because i got x=3 + or  the square root of 7/2 and you

algebra
Find all real or imaginary solutions to equation. Use the method of your choice. 3v^2+4u1=0

calculus1
Approximate the real root of cosx+x=2 to four decimal place. (Using Newton's method) I need help with this! Thank you

Math
Find all real or imaginary solutions to each equation. Use the method of your choice. 3y² + 4v – 1 = 0

algebra
Find all real or imaginary solutions to equation. Use the method of your choice. w^2=225

Math
I am given 4 choices for the problem the square root of 8x 2 = the square root of 2x. The choices are a)x=2 or 2/9 b)no solutions c)2/9 or d)x=2.I have imput the numbers and gotten a variety of solutions none of which are any of the choices, does this

Trig
4tan^2u1=tan^2u 3tan^2u=1 tan^2u=1/3 sq. root of (tan^2u)=sq. root of (1/3) tanu=sq. root of (3)/3 tanu=sq. root of 1 Did I do this one right? If not, could you please show me the correct method?? Thanks!

Math
We've been asked to find the root of a equation,corrected to 2 decimal places, using Bisection method. What should be the tolerance value? Is it 0.01 or 0.01/2=0.005?

math, correction plz
Can someone correct these for me.PLZ Problem#1 Directions solve equation ãx+4 = 3 My answer: x = 5 Probelm #2 Directions solve equation ã(4x+1) + 3 = 0 My answer x = 2 Problem #3 Directions solve equation ã(2y+7)+4=y My answer y= 1 and y = 9 the

College math
Which statement describes the quadratic equation 6x^24x+1=0,correctly? A. it is one completed real root? B. It is two complete complex roots? C. It is two unequal real roots? Please help me with this

math
whate must the value of k 2Xsq+(k3)x+k5=0 has one real root ? Two real root ?no real root?

math
Let F1=(6,0) ,F2=(6,0) A=(10,0)64 + and B=(10,0) write an equation of the set of all points p(x,y) such that (PF1/pluse /PF2/=20. now i know the problem is the square root of (x+6)^2 +y^2 + the square root of (x  6)^2 + y^2 = 20 and the anserew is

math
Still looking at how to solve these... Both are cubic polynomials? 43x^3 + 13x^2 + 18x  456 = 0 DO I divide first by x1? 2x(3x+2)^2=312 Honestly: I would graph the equations and find the roots first. I don't see them off hand. graph y=43x^3 + 13x^2 + 18x

Algebra IIPlease check fpr explanation
I have a question concerning this problem:I just want to make sure my formulas are correct before I do problem It is a hyperbola equation (y4)^2/49  (x6)^2/72 = 1 1.It is a vertical hyperbola, correct? 2. the a^2 is 49, correct? 3. the b^2 is 72,

Trigonometry
Help trig question involving discriminant? a)Find the value of the discriminant. b)Use any method to find the real roots of the equation if they exist. 2x^2+7x=0

Math
I'm not sure how represent radicals, but here is the problem: (sq root)76 + (sq root)125 It is my understanding that negative numbers do not have realnumber square roots, so does that mean that this whole expression does not exist as a real number or