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1. ### Find k For Quadratic Equation?

x^2 - kx + 4 = 0 apply the discriminant formula a = 1 , b = - k, c = 4 b^2 - 4ac = 0 (-k)^2 - 4(1)(4) = 0 k^2 - 16 = 0 k^2 = 16 k = √(16) k = 4 answer// x^2 - 4x + 4 = 0 (x - 2)(x - 2) = 0 x = 2

8 Answers · Science & Mathematics · 19/05/2019

2. ### Label the foci, the major vertices, and the minor vertices. (−1)^2/49 +(+3)^2/169 =1?

... an ellipse with major axis parallel to the y-axis, the foci are (h, k - c) and (h, k + c) where c = √(b² - a²) In this case, c = √(...

1 Answers · Education & Reference · 13/05/2019

3. ### Hyperbolas?

Rules (−k)^2/a^2 - (x-h)^2/b^2 = 1 , c = √(a^2+b^2) vertices (h , k+a) and (h , k-a) Foci (h , k + c) and (h , k - c) the asymptotes y - k = ±(a/b)(x-h)

1 Answers · Science & Mathematics · 13/05/2019

4. ### Ideal Gas Law Chemistry?

1. T = PV / nR = ( 2.5 atm) x (8 L) / ((3 mol) x (0.082057338 L atm/K mol)) = 81.24 K So answer c, although no more than one significant digit is justified. 2. Balloons typically do not have a constant volume, but ignoring that fact...

1 Answers · Science & Mathematics · 03/05/2019

5. ### Calculate the given quantity if a = i + j − 2k b = 4i − 2j + k c = j − 4k.?

14i - 4j - k

2 Answers · Science & Mathematics · 02/05/2019

6. ### Which of the following pairs exhibit an ion-dipole interaction?

Ion-dipole .... While technically, not an intermolecular attraction, it gets included with these. Obviously, you need an ion and a dipole. A) CH3CH2CH2CH2CH3 and CH3CH2CH2CH2COOH -- no ion B) Cl– and K+ -- no dipole...

3 Answers · Science & Mathematics · 04/05/2019

7. ### Am i the only one who still masturbates off of Kim Kardashian?

...only one. This guys doing it too. Theres a million kim k c*m tributes on pornhub that were just put up. So no. ...

10 Answers · Entertainment & Music · 20/04/2019

8. ### Physics problem!!?

The surplus of energy stored in the hotter body is received by the other , so that while one decreases its own temperature, the other increases by the same amount, being the two bodies equal in mass and material . ΔE = m*c...

1 Answers · Science & Mathematics · 18/04/2019

9. ### Physics homework. Help is greatly appreciated?

F = k * C[1] * C[2] / r^2 https://en.wikipedia.org/wiki/Coulomb%27s_law...

2 Answers · Science & Mathematics · 14/02/2019

10. ### Chemistry-Rate Law Problem?

A) by comparing experiments 1 and 2, you see that doubling [H2] doubles the rate. So, the reaction is first order with respect to [H2]. By comparing reactions 1 and 3, you see that doubling...

1 Answers · Science & Mathematics · 08/02/2019