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  1. ... tangent lines of form y = 6x + k have slope 6  Set slope dy/dx = 7/[2√(x)] = 6  x = 49... how that applies here  (y/7)^2 = x = (y – k )/6  6y^2 = 49y – 49k  6y^2 - 49y + 49k = 0  49*49 = 4*6*49k...

    3 Answers · Science & Mathematics · 29/01/2020

  2. If you treat i, j, and k as constants, you have two variables and two unknowns that...39;s solve the first equation for u in terms of v: u + 4v = 4i - k u = 4i - k - 4v Now substitute that into the other equation and solve for v: 4u...

    2 Answers · Science & Mathematics · 12/06/2020

  3. ...would only return a single value if the sign were less than or equal to (≤) and k = -15. |4 + 7x| - 15 ≤ -15 But the inequality symbol is less than (&...

    2 Answers · Science & Mathematics · 24/10/2020

  4. You want to know the values of k that makes x have four solutions. |(x - 4)² - 12| = k ...12 = ± k Now we can add 12 to both sides: (x - 4)² = 12 ± k Get the square root of both sides (another ± gets added...

    1 Answers · Science & Mathematics · 23/07/2020

  5. k (0) : look where x = 0 and find the y value: k (0) = 0 You can do the same for the other two.

    1 Answers · Science & Mathematics · 16/09/2020

  6. I guess {7 ∑ k =0 ( k −2)} = {7 ∑ k =0 ( k −1)+B} If it's true then B = -8

    1 Answers · Science & Mathematics · 04/06/2020

  7. y = ax²+ k Since (-1,3) lies on parabola 3 = a(-1)²+ k 3 = a + k ..............(1) Since (0,5) lies on parabola 5 = a(0)²+ k 5 = k ..............(2) plug it in (1) 3 = a + 5 a = -2 a=-2 and k = 5

    3 Answers · Science & Mathematics · 29/04/2020

  8. (sin x + cos x)^2 = k sin x ^2 + cos x ^ 2 + 2*sin x * cos x = k (sin x ^2 + cos x ^ 2) + 2*sin x * cos x = k 1 + 2*sin x * cos x  = k 1 + sin 2x = k sin 2x = k - 1 let k - 1 = j find sin 2x = j where  0<...

    1 Answers · Science & Mathematics · 02/08/2020

  9. Let z have form |z|cis(θ). conj(z) = |z|cis(-θ) conj(z) ᵏ = |z|ᵏcis(- k θ) ... (De Moivre) zᵏ = |zᵏ...

    1 Answers · Science & Mathematics · 16/09/2020

  10. If you are given a function: K (x) = -2x² + 2x + 4 And want to know what: K (4) is, substitute...

    1 Answers · Science & Mathematics · 20/09/2020

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