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1. ### Is a \$124.00 a lot of money for full skin care? Did I pay too much? This is all k-beauty products and full sized bottles.?

...for 124\$ is about 12\$ per product. That's actually not that bad for k-beauty. One product I use is 124\$ per bottle! So you ...

3 Answers · Beauty & Style · 14/05/2019

2. ### Express the sum n sigma (5k/3n) k=1 in closed form.?

[k = 1 to n] ∑ (5k)/(3n) ... if you meant something else please confirm. = (5/(3n)) [k = 1 to n] ∑ k = (5/(3n)) n(n+1)/2 = 5(n+1)/6

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

3. ### If a 2.60 M sample of A is heated to 500 K, what is the concentration of B at equilibrium?

... …….. ⇌ … 2B ………. Kc = 6.57 x 10⁻⁶ at 500 K initial (M) …….. 2.60 ……….…. 0 change ………… -y …………. +2y equilibrium...

1 Answers · Science & Mathematics · 21/02/2019

4. ### is it true that the k-pop industry is like this...?

K-pop has nothing to do with music. I'm not sure what the attraction is but it isn't the music.

2 Answers · Entertainment & Music · 06/09/2019

5. ### Reindex the series to start at k=1?

Hint: Let u = k-9. Then write all as an expression as u. Then let u=k. Show ur steps if need be and we can take it from there.

3 Answers · Science & Mathematics · 13/11/2019

6. ### Find Value of k?

then f(-2) = 0 or (-2)^4 - k*(-2)^3 + 1 = 0 16 - 8k + 1 = 0 k = -17/8

2 Answers · Science & Mathematics · 07/06/2019

7. ### If a 20 kg of mass, m, is attached to the above spring in problem 20 (spring constant k), what will the frequency of oscillation, f, be?

f = 1/(2 * π) * √(k/m) The first step is solve problem 20 to determine the spring constant... to determine the increase of the length. ∆ L = 0.15 – 0.10 = 0.05 meter k = 4 ÷ 0.05 = 80 N/m Now we can use the spring constant to calculate the...

2 Answers · Science & Mathematics · 16/08/2019

8. ### 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

9. ### Rearrange this equation to isolate A. H = K + log (A/C)?

h = k+log(a/c) log(a/c) = h-k a/c = 10^(h-k) = 10^h/10^k a = c10^h/10^k

3 Answers · Science & Mathematics · 30/04/2019

10. ### Calculate ΔG∘rxn and E∘cell for a redox reaction with n = 3 that has an equilibrium constant of K = 4.2×10−2.?

Temperature = 298 K ΔG°(rxn) = -R T ln(K) = -[8.314 J/(mol...ln (4.2 × 10⁻²) = -0.027 V OR: e°(cell) = (0.0592/3) log(K) V = (0.0592/3) log(4.2 × 10⁻²) V = -0.027 V

1 Answers · Science & Mathematics · 29/04/2019