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 : Find the following products: (i) (3x + 2y + 2z) (9x2 + 4y2 + 4z2 – 6xy – 4yz – 6zx) (ii) (4x -3y + 2z) (16x2 + 9y2+ 4z2 + 12xy + 6yz – 8zx) (iii) (2a – 3b – 2c) (4a2 + 9b2 + 4c2 + 6ab – 6bc + 4ca) (iv) (3x -4y + 5z) (9x2 + 16y2 + 25z2 + 12xy- 15zx + 20yz) -Maths 9th
Last Answer : answer:
Description : If `(x)/(2a-3b)=(y)/(3b-4c)=(z)/(4c-2a)`, then find the value of `x^(3)+y^(3)+z^(3)`.
Last Answer : If `(x)/(2a-3b)=(y)/(3b-4c)=(z)/(4c-2a)`, then find the value of `x^(3)+y^(3)+z^(3)`.
Description : If ` a : b =2 : 3 ," then find "(3a - b) : ( 2a+ 3b)`.
Last Answer : If ` a : b =2 : 3 ," then find "(3a - b) : ( 2a+ 3b)`.
Description : Is 8a-3b-(2a-4b) and 6a plus b equivalent?
Last Answer : Need answer
Description : The pair of equations ax+2y=7 and 3x+by=16 represent parallel lines if (a)a=b (b)3a=2b (c)ab=6 (d)2a=3b
Last Answer : (c)ab=6
Description : If the dimensions of a rectangle are a plus 3 b a plus 3b and a and minus 3 b a and minus3b what is the area of the rectangle in terms of a a and b b?
Last Answer : It is a2 - 9b2.
Description : The minimum value of the expression ((3b+4c)/a)+((4c+a)/3b)+((a+3b)/4c) -Maths 9th
Description : What is a x 3b?
Last Answer : Ava and Becca are collecting canned goods. Ava collected 3/4 of a box of canned goods. Becca collected five times as much as Ava did. How many boxes of canned goods did Becca collect.
Description : For a gaseous reaction, `A(g)+3B(g)to3C(g)+3D(g),DeltaU` is 17 kcal at `27^(@)C`. Assuming `R=2cal" "K^(-1)mol^(-1)`, the value of `DeltaH` for the ab
Last Answer : For a gaseous reaction, `A(g)+3B(g)to3C(g)+3D(g),DeltaU` is 17 kcal at `27^(@)C`. Assuming `R=2cal" " ... Kcal B. 18.2 Kcal C. 20.0 Kcal D. 16.4 Kcal
Description : If `(a)/(b)=(c)/(d)=(e)/(f)=(3)/(4)`, then what is the value of `(3a-4c-e)/(3b-4d-f)`?
Last Answer : If `(a)/(b)=(c)/(d)=(e)/(f)=(3)/(4)`, then what is the value of `(3a-4c-e)/(3b-4d-f)`?
Description : If A=3B=5C, then A:B:C=_______.
Last Answer : If A=3B=5C, then A:B:C=_______.
Description : If ` a/b = c/d = e/f = 2/5`, then ` (3a+4c+9e)/(3b+4d+9f) = ` _________ .
Last Answer : If ` a/b = c/d = e/f = 2/5`, then ` (3a+4c+9e)/(3b+4d+9f) = ` _________ .
Description : What is the simplify of -2b plus 6 plus 3b-2?
Last Answer : It is: b+4 when simplified
Description : What is Army reenlistment code RE-3 or 3B?
Description : What is 3b - c?
Last Answer : They are 2 terms of an algebraic expression in the form of: 3b-c
Description : 3a plus 3b plus ax plus bx?
Last Answer : 6a square plus b square
Description : The fractional volume change of the system for the isothermal gas phase reaction, A → 3B, between no conversion and complete conversion is (A) 0.5 (B) 1 (C) 2 (D) 3
Last Answer : (C) 2
Description : A chemical reaction, A → 3B, is conducted in a constant pressure vessel. Starting with pure A, the volume of the reaction mixture increases 3 times in 6 minutes. The fractional conversion is (A) 0.33 (B) 0.5 (C) 1 (D) Data insufficient, can't be predicted
Last Answer : (C) 1
Description : Pure A in gas phase enters a reactor 50% of this A is converted to Bthrough the reaction, A → 3B. Mole fraction of A in the exit stream is (A) 1/2 (B) 1/3 (C) 1/4 (D) 1/5
Last Answer : (B) 1/3
Description : A triangular section having base b, height h, is placed with its base horizontal. If the shear stress at a depth y from top is q, the maximum shear stress is (A) 3S/bh (B) 4S/bh (C) 4b/Sh (D) 3b/bS
Last Answer : (A) 3S/bh
Description : Indian and Russian scientists successfully test-fired a supersonic cruise missile named (1) GSAT – 1 (2) GSLV (3) Brahmos (4) INSAT –3B
Last Answer : Brahmos
Description : For any two real number a b and , we defined aRb if and only if sin^2a + cos^2b = 1. The relation R is -Maths 9th
Last Answer : (d) an equivalence relationGiven, a R b ⇒ sin2a + cos2b = 1 Reflexive: a R a ⇒ sin2 a + cos2 a = 1 ∀ a ∈ R (True) Symmetric: a R b ⇒ sin2 a + cos2 b = 1 ⇒ 1 - cos2 a + 1 - sin2 b = 1 ⇒ sin2 b + ... + cos2 b + sin2 b + cos2 c = 2 ⇒ sin2 a + cos2 c = 1 ⇒ a R c (True)∴ R is an equivalence relation.
Description : The number of integral values of a for which the equation `cos2x+a sin x=2a-7` possessess a solution.
Last Answer : The number of integral values of a for which the equation `cos2x+a sin x=2a-7` possessess a solution. A. `0` B. `1` C. `3` D. `5`
Description : The mass transfer co-efficient for a solid sphere of radius 'a' dissolving in a large volume of quiescent liquid, in which ‘D’ is the diffusivity of solute, is (A) D/a (B) D/2a (C) Proportional to √D (D) Dependent on the Reynolds number
Last Answer : (D) Dependent on the Reynolds number
Description : simplify (2a + b)3 + (2a - b)3 -Maths 9th
Last Answer : (2a + b)3 + (2a - b)3 = (8a3 + 12a2b + 3ab2 + b3 ) + (8a3 - 12a2b + 3ab2 - b3) = 16a3 + 6ab2
Description : If x + 2a is a factor of a5 -4a2x3 +2x + 2a +3, then find the value of a. -Maths 9th
Last Answer : Let p(x) = a5 -4a2x3 +2x + 2a +3 Since, x + 2a is a factor of p(x), then put p(-2a) = 0 (-2a)5 – 4a2 (-2a)3 + 2(-2a) + 2a + 3 = 0 ⇒ -32a5 + 32a5 -4a + 2a+ 3 = 0 ⇒ -2a + 3 = 0 2a =3 a = 3/2. Hence, the value of a is 3/2.
Description : If a = log12m and b = log18m, then (a-2b)/(b-2a) equals -Maths 9th
Last Answer : (a) log32\(rac{a-2b}{b-2a}\) = \(rac{ ext{log}_{12}\,m-\,2 ext{log}_{18}\,m}{ ext{log}_{18}\,m-\,2 ext{log}_{12}\,m}\)
Description : If a + b + c = 0, then what is the value of a^4 + b^4 + c^4 – 2a^2b^2 – 2b^2c^2 – 2c^2a^2 ? -Maths 9th
Description : If(x)/((b-c)(b+c-2a))=(y)/((c-a)(c+a-2b))=(z)((a-b)(a+b-2c)), what is the value of x + y + z ? -Maths 9th
Description : (2a)/(a+b)+(2b)/(b+c) + (2c)/(c+a) + ((b-c)(c-a)(a-b))/((b+c)(c+a)(a+b))equals -Maths 9th
Description : The adjacent sides of a parallelogram are 2a and a. If the angle between them is 60°, then one of the diagonals of the parallelogram is -Maths 9th
Description : If (x^4 – 2x^2y^2 + y^2)^(a –1) = (x – y)^2a (x + y) ^–2, then the value of a is -Maths 9th
Description : Two substances, A and B were made to react to form a third substance, A2B according to the following reaction 2A + B → A2 B. Which of the following statements concerning this reaction are incorrect? -Chemistry 9th
Last Answer : (c) (i), (iii), (iv) Consider the example of H2O
Description : How to connect Xiaomi Redmi 2A to TV -Web-Development
Description : How to connect Xiaomi Mi 2A to TV -Web-Development
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Description : How to control your PC with Xiaomi Mi 2A Android phone -Web-Development
Description : How to connect Xiaomi Redmi 2A to Xbox -Web-Development
Last Answer : In order to connect your Xiaomi Redmi 2A to XBox : 1-Go to menu on your Android then tap "Settings". 2-Press the "wireless and network connections" Option in the Configuration list. 3 ... button 4- Select the "AndroidAP" wireless network. Your Xbox will connect to your WiFi wireless area Android.
Description : How to connect Xiaomi Mi 2A to Xbox -Web-Development
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Description : How to connect Xiaomi Mi 2A to printer? -Web-Development
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