Description : One of the factors of (25x2 – 1) + (1 + 5x)2 is -Maths 9th
Last Answer : (d) Now, (25x2 -1) + (1 + 5x)2 = 25x2 -1 + 1 + 25x2 + 10x [using identity, (a + b)2 = a2 + b2 + 2ab] = 50x2 + 10x = 10x (5x+ 1) Hence, one of the factor of given polynomial is 10x.
Description : Calculate the perimeter of a rectangle whose area is 25x2 – 35x + 12. -Maths 9th
Last Answer : Given, Area of rectangle = 25x2 - 35x + 12 We know, area of rectangle = length breadth So, by factoring 25x2 - 35x + 12, the length and breadth can be obtained. 25x2 - 35x + 12 = 25x2 - 15x - 20x + 12 => 25x2 - 35x + ... )] = 2(5x - 3 + 5x - 4) = 2(10x - 7) = 20x - 14 So, the perimeter = 20x - 14
Description : If both x – 2 and x -(1/2) are factors of px2+ 5x+r, then show that p = r. -Maths 9th
Last Answer : Show that p = r.
Description : If both (x -2) and (x - 1/2) are factors of px2 + 5x + r, show that p = r. -Maths 9th
Last Answer : Solution :-
Description : If both (x – 2) and (x – 1/2) are factors of px^2 + 5x + r, then: -Maths 9th
Last Answer : answer:
Description : Find the value of k for 5x +2ky =3k, if x =1 and y =1 is its solution. -Maths 9th
Last Answer : Given, equation is 5x + 2ky = 3k. On putting x =1 and y =1 in this equation, we get 5(1) + 2k(1) =3k ⇒ 5 + 2k =3k ⇒ 5 = 3k - 2k ⇒ k = 5 Hence, required value of k is 5.
Description : The point (2,3) lies on the graph of the linear equation 3x - (a -1)y =2a -1. If the same point also lies on the graph of the linear equation 5x + (1-2a)y = 3b, then find the value of b. -Maths 9th
Last Answer : Given, point (2,3) lies on the line. So, the point (2, 3) is the solution of 3x - (a -1) y = 2a - 1 On putting x = 2 and y = 3 in given solution. ∴ 3 2 - (a-1) 3 = 2a - 1 ⇒ 6 - 3a + 3 = 2a - 1 ⇒ - 3a ... 2 2) 3 = 3b ⇒ 10 - 9 = 3b ⇒ 1 = 3b ⇒ 1 / 3 = b Hence, the value of b is 1 / 3.
Description : Degree of the polynomial 4x4 + Ox3 + Ox5 + 5x+ 7 is -Maths 9th
Last Answer : (a) Degree of 4x4 + Ox3 + Ox5 + 5x + 7 is equal to the highest power of variable x. Here, the highest power of x is 4, Hence, the degree of a polynomial is 4.
Description : The value of the polynomial 5x – 4x2 + 3, when x = -1 is -Maths 9th
Last Answer : (a) Let p (x) = 5x – 4x2 + 3 …(i) On putting x = -1 in Eq. (i), we get p(-1) = 5(-1) -4(-1)2 + 3= - 5 - 4 + 3 = -6
Description : Find the value of k if (x-2)is a factor of polynomial p(x) = 2x(cube) - 6x(square) + 5x + k. -Maths 9th
Description : What must be added to 2x(square) - 5x + 6 to get x(cube) - 3x(square) + 3x - 5? -Maths 9th
Description : Write a solution of the linear equation 5x + 0y +8 = 0 in two variables. -Maths 9th
Last Answer : Solution : -
Description : If x = 0 and y = k is a solution of the equation 5x - 3 y = 0, find the value of k. -Maths 9th
Description : Give the geometric interpretations of 5x + 3 = 3x – 7 as an equation (i) in one variable (ii) in two variables. -Maths 9th
Description : Find the solution set of x^2 – 5x + 6 > 0. -Maths 9th
Description : Solve x^2 – 5x + 4 > 0. -Maths 9th
Description : For what value of k will the roots of the equation kx^2 – 5x + 6 = 0 be in the ratio 2 : 3 ? -Maths 9th
Last Answer : (b) 1 Let the roots of the equation kx2 - 5x + 6 = 0 be α and β. Then, α + β = \(\frac{5}{k}\) ...(i) αβ = \(\frac{6}{k}\) ...(ii) Given \(\ ... frac{9}{k}\) ⇒ 9k2 - 9k = 0 k(k - 1) = 0 ⇒ k = 0 or 1 But k = 0 does not satisfy the condition, so k = 1.
Description : If the expressions (px^3 + 3x^2 – 3) and (2x^3 – 5x + p) when divided by (x – 4) leave the same remainder, then what is the value of p ? -Maths 9th
Last Answer : Given that the following polynomials leave the same remainder when divided by (x - 4) : We are to find the value of a. Remainder theorem: When (x - b) divides a polynomial p(x), then the remainder is p(b). So, from (i) and (ii), we get Thus, the required value of a is 1.
Description : If x^3 + 5x^2 + 10k leaves remainder – 2x when divided by x^2 + 2, then what is the value of k ? -Maths 9th
Last Answer : x3+5x2+10k =(x2+2)(x+5)+10k−2x−10 ⇒10k−2x−10=−2x ⇒10k−10=0 or k=1.
Description : What is (x^2-3x+2)/(x^2-5x +6)÷(x^2-5x+4)/(x^2-7x+12) equal to? -Maths 9th
Description : What is the equation of the line having the y-intercept –1 and parallel to the line y = 5x – 7 ? -Maths 9th
Last Answer : Slope of AB = \(rac{2-4}{1-0}\) = -2, Slope of BC = \(rac{3-2}{3-1}\) = \(rac{1}{2}\)Slope of AC = \(rac{3-4}{3-0}\) = \(-rac{1}{3}\)Slope of AB × Slope of BC = -2 x \(rac{1}{2}\) = -1∴ AB ⊥ BC, i.e, ∠B = 90º ⇒ ΔABC is a right angled.
Description : Find the value of the polynomial 5x – 4x2 + 3 at x = 2 and x = –1 -Maths 9th
Last Answer : Let the polynomial be f(x) = 5x – 4x2 + 3 Now, for x = 2, f(2) = 5(2) – 4(2)2 + 3 => f(2) = 10 – 16 + 3 = –3 Or, the value of the polynomial 5x – 4x2 + 3 at x = 2 ... (–1) = –5 –4 + 3 = -6 The value of the polynomial 5x – 4x2 + 3 at x = -1 is -6.
Description : If both (x+1) and (x -1) are factors of ax3 + x2 - 2x + b , find a and b. -Maths 9th
Last Answer : Let p(x) = ax3 + x2 - 2x + b Since (x+1) and (x-1) are the factors of p(x), ∴ p(-1) = 0 and p(1) = 0 ∴ p(-1) = a(-1)3 + (-1)2 - 2 (-1) + b = 0 ⇒ - a + 1 + 2 + b = 0 ⇒ a - b = 3 ---- (i) ... 0 ⇒ a + 1 - 2 + b = 0 ⇒ a + b = 1 ----- (ii) solving equations (i) and (ii) we get a = 2 and b = -1
Description : Find the factors of {1-x(cube)}. -Maths 9th
Description : Find the factors of y(cube) + y(square) + y + 1 -Maths 9th
Description : What is/are the factors of (x^29 – x^24 + x^13 – 1) ? -Maths 9th
Description : Which one of the following is one of the factors of x^2 (y – z) + y^2 (z – x) – z (xy – yz – zx) ? -Maths 9th
Description : The factors of x^8 + x^4 + 1 are : -Maths 9th
Description : Explain five major factors which contributed to the making of our constitution. -Maths 9th
Last Answer : The white minority and the black majority agreed to draw up a common constitution for South Africa in the following ways.The white regime changed its repressive policies and repealed its ... the solution irrespective of the differences and whatever they had done or represented in the past
Description : What are the factors affecting evaporation? Explain how rate of evaporation affects by them. -Maths 9th
Last Answer : Factors That Affect the Rate of Evaporationtemperature of the liquid. A cup of hot water will evaporate more quickly than a cup of cold water.exposed surface area of the liquid. ...presence or ... substances in the liquid. ...air movement. ...concentration of the evaporating substance in the air.
Description : What are the factors affecting diffusion? -Maths 9th
Last Answer : FactorReasonThe concentration gradientThe greater the difference in concentration, the quicker the rate of diffusion.The temperatureThe higher the temperature, the more kinetic energy the particles will have, so they will move and mix more quickly.
Description : If the product of two zeroes of polynomial 2x3 + 3x2 – 5x – 6 is 3, then find its third zero. -Maths 10th
Last Answer : The third zero is 1. Step-by-step explanation: Given the polynomial The product of two zeroes is 3 we have to find the third zero As product of two zeroes is 3 Let ab=3 Therefore, 3c=3 ⇒ c=1 hence, the third zero is 1.
Description : Can't hear sound on outgoing calls Nexus 5x?
Last Answer : I called voicemail but couldn’t hear anything there either. In coming calls do work, so it’s just outgoing calls that don’t work.
Description : What is this exchange services app on my Nexus 5x and do I really need it?
Last Answer : answer:Correct, it is for Gmail. Specifically to use the Gmail app to connect to Microsoft Exchange emails. Also I think Calendar and Contacts, so not only Gmail. So I would keep it if you use your Android phone with a work or school account and you can delete it if not.
Description : find the value of x in the equation 2(x – 3) + 5x = 5(2x + 6). -General Knowledge
Last Answer : 2(x – 3) + 5x = 5(2x + 6) 2x - 6 + 5x = 10x + 30 7x - 10x = 30 + 6 -3x = 36 x = - 12
Description : if f(x) = 5x + 40, what is f(x) when x = –5? -General Knowledge
Last Answer : f(x) = 5x + 40, x = -5, f(-5) = 5(-5) + 40 ; f(-5) = -25 + 40 ; f(-5) = 15.
Description : Which inequality represents all values of X for which the product below is defined squrt 5x times squrt x+4?
Last Answer : 9
Description : Evaluate the function below for x = 3 F(x) = x ^ 3 + 5x ^ 2 + 1 Answer D. 73?
Last Answer : Answer is D.73
Description : Find the difference of 5x + 4 and -7x + 2?
Last Answer : 12x+2
Description : What is the product of 1/2*-1/4 and 5x^2-2x+6 in standard form?
Last Answer : (1/2*-1/4)*(5x^2-2x+6) = -0.625x^2+0.25x-0.75
Description : Can someone name the slope in the equation y = -5x + 4?
Last Answer : -1
Description : what- choose the property of equality that justifies the step. prove: if z- 1= 5x+ 1 and x= 2y, then z +10y +2?
Last Answer : addition
Description : what is 5x - 3 = 12x + 11
Last Answer : 3=7x+11 -7=7x -1=x
Description : `" if " f(x) ={ underset( 5x" "2 le x le 3) (3x+ 4,0 le x le 2),` then `int_(0)^(3) f(x) dx=?`
Last Answer : `" if " f(x) ={ underset( 5x" "2 le x le 3) (3x+ 4,0 le x le 2),` then `int_(0)^(3) f(x) dx=?` A. `(53)/(2)` B. `(55)/(2)` C. `(57)/(2)` D.