Description : Evaluate each of the following using identities: (i) (2x –1x)2 (ii) (2x + y) (2x – y) (iii) (a2b – b2a)2 (iv) (a – 0.1) (a + 0.1) (v) (1.5.x2 – 0.3y2) (1.5x2 + 0.3y2) -Maths 9th
Last Answer : (i) (2x - 1/x)2 [Use identity: (a - b)2 = a2 + b2 - 2ab ] (2x - 1/x)2 = (2x) 2 + (1/x)2 - 2 (2x)(1/x) = 4x2 + 1/x2 - 4 (ii) (2x + y) (2x - y) [Use identity: (a - b)(a + b) = a2 - b 2 ] (2x + y) (2x - ... ) = a2 - b 2 ](1.5 x 2 - 0.3y2 ) (1.5x2 + 0.3y2 ) = (1.5 x 2 ) 2 - (0.3y2 ) 2 = 2.25 x4 - 0.09y4
Description : How do you use distributive property to expand this expression -2(2.1x plus 3y - 1.8)?
Last Answer : -4.2x - 6y + 3.6
Description : How do you use distributive property to expand the following expression. -2(2.1x plus 3y - 1.8)?
Description : What the distributive property to expand the following expression. -2(2.1x plus 3y - 1.8)?
Description : Evaluate : `int_0^1x(1-x)^5dx`
Last Answer : Evaluate : `int_0^1x(1-x)^5dx`
Description : The value of `inte^(tan^-1x) ((1+x+x^2)/(1+x^2))dx`
Last Answer : The value of `inte^(tan^-1x) ((1+x+x^2)/(1+x^2))dx`
Description : How many users are supported by Cdma2000 1X in comparison to 2G CDMA standard? a) Half b) Twice c) Six times d) Ten times
Last Answer : b) Twice
Description : Within ITU IMT-2000 body, Cdma2000 1xRTT is also known as ____________ a) Cdma2000 1xEV-DO b) Cdma2000 1xEV-DV c) IS-95B d) G3G-MC-CDMA-1X
Last Answer : d) G3G-MC-CDMA-1X
Description : What is the solution to the inequality 4(2x plus 2) plus 12 and gt 1004(2x plus 2) plus 12 and gt 100?
Last Answer : There is no solution to:4(2x + 2) + 12 > 1004(2x + 2) + 12 > 100For 4(2x + 2) + 12 > 1004(2x + 2) + 12 to have a solution x< -1 which makes 1004(2x + 2) + 12 < 12, BUT 1004(2x + 2) +12 is supposed to be greater than 100.Perhaps there is a missing operator in the digits of 1004?
Description : Is 3(2x plus 4) 5x plus 4 distributive property?
Last Answer : Need answer
Description : If (x) -2x plus 5then f (7)?
Last Answer : f(7) = -9.
Description : Can i translate the following inequality into written language 2x plus 8 and gt -4?
Last Answer : Twice a number increased by eight is greater than negativefour.
Description : What is 2x plus 224(x plus 3)?
Last Answer : It can be simplified to: 226x+672
Description : How many terms are in 2x-5 plus 3y?
Last Answer : There are three terms in the given expression
Description : What is (3x plus 2)(2x-4)?
Last Answer : It is equivalent to: 6x^2 -8x -8
Description : What does The number 14 in the equation y equals 2x plus 14?
Last Answer : In the straight line equation of y = 2x+14 the slope or gadientis 2 and the y intercept is 14
Description : What is the distance from a point on the x axis to the centre of a circle when a tangent line at the point 3 4 meets the circle of x2 plus y2 -2x -6y plus 5 equals 0?
Last Answer : Circle equation: x^2 +y^2 -2x -6y +5 = 0Completing the squares: (x-1)^2 +(y-3)^2 = 5Centre of circle: (1, 3)Tangent line meets the x-axis at: (0, 5)Distance from (0, 5) to (1, 3) = 5 units using the distanceformula
Description : How do you factor 2x plus 10?
Last Answer : It is 2(x+5) when factorized
Description : What is 2x plus 8y use the greatest common factor and the distributive property to write equivalent expression factored form?
Last Answer : Does it look like I fing care Jesus
Description : What are the points of intersection of the line 2x plus 5y equals 4 with the curve y squared equals x plus 4?
Last Answer : If: 2x +5y = 4 then 25y^2 = 4x^2 -16x +16If: y^2 = x +4 then 25y^2 = 25x +100So: 4x^2 -16x +16 = 25x +100Transposing terms: 4x^2 -41x -84 = 0Factorizing the above: (4x+7)(x-12) = 0 meaning x = -7/4 or x =12By substitution into original equation points of intersection:(-7/4, 3/2) and (12, -4)
Description : What is 2x plus 3y equals 17 and 3x minus 2y equals 0.5?
Last Answer : It is a simultaneous equation and when solved its solutions arex = 71/26 and y = 50/13
Description : What are the points of intersection between the line 3x -y equals 5 and the curve 2x squared plus y squared equals 129?
Last Answer : If: 3x-y = 5 then y^2 = (3x_5)^2 => 9x^2 -30x+25If: 2x^2 + y^2 = 129 then y^2 = 129-2x^2So: 9x^2 -30x+25 = 129-2x^2Transposing terms: 11x^2 -30x -104 = 0Factorizing the above: (11x- ... x = 52/11 or x= -2By substituting x into the original equation intersections areat: (52/11, 101/11) and (-2, -11)
Description : What is an equivalent expression to 8 plus 7y plus 2x plus 4y plus 4?
Last Answer : Feel Free to Answer
Description : If f(x) 3x plus 10x and g(x) 2x and ndash 4 find (f and ndash g)(x).?
Description : In the equation 2x plus 28 what is the value of x?
Last Answer : If you mean 2x = 28 then the value of x is 14
Description : What is the point of contact when the line y equals 2x meets the circle x2 plus y2 -8x -y plus 5 equals 0?
Last Answer : If: y = 2xThen: y^2 = 4x^2If: x^2 +y^2 -8x -y +5 = 0Then: x^2 +4x^2 -8x -2x +5 = 0Transposing terms: 5x^2 -10x +5 = 0Dividing all terms by 5: x^2 -2x +1 = 0Factorizing the above: (x-1)(x-1) = 0 meaning x = 1By substitution into original equations point of contact is madeat: (1, 2)
Description : What type of lines match these equations 3x plus 2y -5 -2x plus 3y -5?
Last Answer : If you mean 3x+2y = -5 and -2x+3y = -5 then they are straightline equations
Description : What are the solutions to the simultaneous equations of y equals -2x and x2 plus y2 equals 80?
Last Answer : If: y = -2x then y ^2 = 4x^2If: x^2 + y^2 = 80 then x^2 +4x^2 = 80So: 5x^2 = 80Divide all terms by 5: x^2 = 16Square root both sides: x = -4 or +4By substitution into the original equation solutions are: (-4,8) and (4, -8)
Description : What equation y is greater than or equal to -2x plus 5?
Description : What is 7x plus 4(2x - 6) simplified?
Last Answer : It is 15x -24 when simplified
Description : Which two points satisfy y -x2 plus 2x plus 4 and x plus y 4?
Last Answer : Without any equality signs the given expression can't form anyequations and so therefore determining the values of x and y is notpossible.
Description : How many terms are in 2x plus 3y - 4z?
Last Answer : There are 3 terms in the given expression
Description : What is the solution when y equals 2x plus 1 is a tangent to the circle 5y2 plus 5x2 equals 1?
Last Answer : If y = 2x+1 is a tangent line to the circle 5y^2 +5x^2 = 1 thenthe point of contact is at (-2/5, 1/5) because it has equalroots
Description : What is the value of y when y equals 2x plus 1.25 is a tangent to the curve y squared equals 10x?
Last Answer : If the line y = 2x+1.25 is a tangent to the curve y^2 = 10x thenit works out that when x = 5/8 then y = 5/2
Description : What is (4x plus 3 ) plus (-2x plus 8)?
Last Answer : 5x + 3 - 4 + 4x = 9x -1
Description : What is the solution to this equation 2x plus 3(x and ndash 10) 45?
Last Answer : This website isn't equipped to reproduce most mathematical symbols in the questions. I'll see if I can translate. 2x + 3(x - 10) = 45 2x + 3x - 30 = 45 5x - 30 = 45 5x = 75 x = 15 Check it. 2(15) + 3(15 - 10) = 45 30 + 15 = 45 It checks.
Description : How do you factorise 2x squared minus 13x plus 21?
Last Answer : (x - 3)(2x - 7)
Description : How many real solutions (intersections) will there be in this system of two equations 5x(2) plus y 2x(2) plus y?
Last Answer : None because the given terms of an expression are not equations because there are no equality signs.
Description : graph of 2x+9=0 in one variable -Maths 9th
Last Answer : 2x+9=0 2x=-9 x=-9/2 x=-4.5
Description : If x +1 is a factor of ax3 +x2 -2x + 4a - 9, then find the value of a. -Maths 9th
Last Answer : The value of a
Description : Any solution of the linear equation 2x + 0y + 9 = 0 in two variables is of the form -Maths 9th
Last Answer : (a) The given linear equation is 2x + 0y + 9 = 0 ⇒ 2x + 9 = 0 ⇒ 2x = -9 ⇒ x= - 9/2 and y can be any real number. Hence, (-9/2 , m) is the required form of solution of the given linear equation.
Description : If (x+1) is a factor of ax(cube) + x(square) - 2x + 4a - 9,find the value of a. -Maths 9th
Last Answer : solution :-
Description : At what point does the graph of the linear equation 2x + 3y = 9 meet a line which is parallel to the y-axis, at a distance of 4 units from the origin and on the right of the y-axis? -Maths 9th
Last Answer : hope its clear
Description : If the HCF of (x^2 + x – 12) and (2x^2 – kx – 9) is (x – k), then what is the value of k ? -Maths 9th
Last Answer : answer:
Description : Simplify (9-4x^ 2 +2x^ 2 +8x^ 2 +1+6x^ 2?
Last Answer : 12x^2+10
Description : If `(2x-9)` is a factor of `2x^(2) + px - 9`, then `p = "_____"`.
Last Answer : If `(2x-9)` is a factor of `2x^(2) + px - 9`, then `p = "_____"`.