WebIf 9x 2+25y 2=181 and xy=−6, find the value of 3x+5y. Medium Solution Verified by Toppr Correct option is A) As we know that (a+b) 2=a 2+b 2+2ab (3x+5y) 2=9x 2+25y 2+2×3x×5y (3x+5y) 2=181−180=1 (3x+5y)= 1 so (3x+5y)=1 is Ans. Was this answer helpful? 0 0 Similar questions If x−y=7 and xy=9, find the value of x 2+y 2. Medium View solution > Webx=6 How to Check Your Answer with Algebra Calculator. First go to the Algebra Calculator main page. Type the following: First type the equation 2x+3=15. Then type the @ …
If 3x + 5y = 11 and Xy = 2, Find the Value of 9x2 - Shaalaa.com
Web6 jan. 2024 · Online Question and Answer in Differential Calculus (Maxima/Minima and Time Rates) Series. Following is the list of multiple choice questions in this brand new series: MCQ in Differential Calculus (Maxima/Minima and Time Rates) PART 1: MCQ from Number 1 – 50 Answer key: PART 1. PART 1: MCQ from Number 2 – 100 Answer key: PART 2. Web27 apr. 2024 · If 9x = 20y, then the value of ((x/y) - 1) is: Get the answers you need, now! kvngfx4739 kvngfx4739 27.04.2024 CBSE BOARD XII Secondary School answered • expert verified If 9x = 20y, then the value of ((x/y) - 1) is: See answers Advertisement Advertisement vanshgupta12345 vanshgupta12345 Solution-- family7 ezechiel
Solve 9x^2+25y^2-225=0 Microsoft Math Solver
WebSolution 9x2+25y2 =181, and xy =−6 (3x+5y)2 = (3x)2+(5y)2+2×3x+5y ⇒ 9x2+25y2+30xy = 181+30×(−6) = 181−180= 1 (3x+5y)2 = (±1)2 ∴ 3x+5y =±1 Suggest Corrections 12 Similar questions Q. If 9x2+25y2 =181 and xy = - 6. Find the value of 3x + 5y. Q. If 3x−7y=10 and xy=−1, find the value of 9x2+49y2 Q. WebGiven: Equation of ellipse is 9x 2 + 25y 2 = 225 Concept Used: If x 2 a 2 + x 2 b 2 = 1 is the equation of ellipse then foci = (±c, 0) where, c 2 = a 2 – b 2 Calculation: 9x 2 + 25y 2 = 225 x 2 25 + y 2 9 = 1 ⇒ x 2 a 2 + x 2 b 2 = 1 ⇒ a 2 = 25, b 2 = 9 c 2 = a 2 – b 2 ⇒ c 2 = 16 ⇒ c = 4 foci = (c, 0) ⇒ (±4, 0) ∴ The foci or the ellipse is (±4, 0). Web13 mrt. 2024 · There are two possibilities for the 9, either 9 ⋅ 1 or 3 ⋅ 3 and one possibility for the x2, only x ⋅ x. Factoring the last expression 25y2 also has few possibilities, 25 ⋅ 1 or 5 … hl jahr santiago