... 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 – 49**k**6y^2 - 49y + 49**k**= 0 49*49 = 4*6*49**k**...3 Answers · Science & Mathematics · 29/01/2020

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

...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

You want to

**k**now the values of**k**that ma**k**es 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

**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

I guess {7 ∑

**k**=0 (**k**−2)} = {7 ∑**k**=0 (**k**−1)+B} If it's true then B = -81 Answers · Science & Mathematics · 04/06/2020

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**= 53 Answers · Science & Mathematics · 29/04/2020

(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

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

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