How many solutions does 2x − 2x − 7 −7 have
Web{2x + y = 7 x − 2y = 6 A linear equation in two variables, such as 2x + y = 7, has an infinite number of solutions. Its graph is a line. Remember, every point on the line is a solution to the equation and every solution to the equation is a point on the line. WebQ: I have a budget of €12 000 (which I do not need to spend entirely) for the purchase of two products.… A: Budget: € 12,000 Cost of first product: €300 per unit. Cost of the second product: €300 per unit.…
How many solutions does 2x − 2x − 7 −7 have
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WebThe answer to the question is here, Number of answers:1: BRO PLEASE THIS IS SO HARD Joanna was eager to know her score on the science final exam. Ms. Filer would release the scores once she graded all exams. Ms. Filer had less than 15 exams left to grade. Which number line represents the number of exams Ms. Filer had left to grade? number line … WebTo have exactly two solutions, we would want a second line that intersects the graph of at exactly two points. However, this is not possible. Since two points determine one and only one line, we must conclude that if two lines intersect at …
Web9 feb. 2024 · Cascade Answer: 1 solution: x = -20 Solve for x. -6 (x + 7) = -4x - 2 Distributive Property -6x - 42 = -4x - 2 Add 4x to both sides -2x - 42 = -2 Add 42 to both … Web= − 4 x7 + 3 x6 − x5 + 2 x4 + x3 + 9 x2 − x + 1 There are five sign changes, so there are five or, counting down in pairs, three or one negative solutions. Then my answer is: There are two or zero positive solutions, and five, three, or one negative solutions.
WebPowers and roots 2 Expand for x: (x+7)^2 (x+7)2 See answer › Polynomials and quadratic expressions Factor for x: 9x^2-6x+1 9x2 −6x+1 See answer › Linear inequalities 2 Solve … Web5 jul. 2024 · This means that 7 x 2 y 2, also its easy to show that ( x, y) 1, becouse if ( x, y) d 1, then d 7. Now suppose that d 7, then for x 7 7 b 2 x 2 − 5 y 2 = 2 × 49 × a 2 − 5 × 49 × b 2 = 49 ( 2 a 2 − 5 b 2) = 7 Its contradiction. So d = 1 . But x 2 + y 2 = 7 k has no solution where x and y are coprime, .
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WebCommunity Experts online right now. Ask for FREE. ... Ask Your Question Fast! how many days are 70 hoursWebA system of linear equations usually has a single solution, but sometimes it can have no solution (parallel lines) or infinite solutions (same line). This article reviews all three cases. One solution. A system of linear equations has one solution when the … high self-esteem characteristicsWeb13 apr. 2024 · X2 − 2X + 1 = 3X − 5. Adding 2 to each member yields. Check all of the boxes that apply. So there are an infinite number of solutions for x explanation: [Latex]X<2 [/Latex] Is The Solution To [Latex]X+3<5 [/Latex]. Solve the inequality \displaystyle { x 9 \leq 8x 1. Check all of the boxes that apply. high sell through meaninghow many days are 7 yearsWebA line has the equation 3x − 4y = 1. Choose the equation of a line that is parallel to the ... How many real and imaginary solutions does the equation x^2-3x=-2x-7 have? Answers: 1. Answer. ... Mathematics, 21.06.2024 19:30. Fa bus driver leaves her first stop by 7: 00 a.m., her route will take less than 37 minutes. if she leaves ... how many days are 81 hrsWeb2x+3y=7,(k−1)x+(k+2)y=3k Easy Solution Verified by Toppr Consider the given equations. 2x+3y=7 (k−1)x+(k+2)y=3k The general equations a 1x+b 1y=c 1 a 2x+b 2y=c 2 So, a 1=2,b 1=3,c 1=7 a 2=k−1,b 2=k+2,c 2=3k We know that the condition of infinite solution a 2a 1= b 2b 1= c 2c 1 Therefore, k−12 = k+23 = 3k7 ⇒ k−12 = k+23 ⇒2k+4=3k−3 ⇒k=7 high selling cd award crosswordWeb(ii) A disinfectant solution was prepared by dissolving 10 g of HClO and x g of NaClO in 100 cm3 of water. For effective disinfection, a pH of 7.35 was needed to reach the optimal [ClO−]:[HClO] ratio. Given that the pKa of HClO is 7.55, determine the optimal [ClO−]:[HClO] ratio and hence the mass of NaClO, x how many days are 97 hours