Total distance = 120 km + 180 km = 300 km. Total time = 2 hours + 3 hours = 5 hours. Average speed = Total distance / Total time = 300 km / 5 hours = 60 km/h.

Tensile strain = Stress / Young's modulus = (100 N / (π * (0.001 m)²)) / (200e9 Pa) = 0.002.

In 8 hours, the worker completes 1 job. In 3 hours, he completes 3/8 of the job.

KCL states that the total current entering a junction must equal the total current leaving that junction.

The coefficient is C(6,2) * (5)^2 = 15 * 25 = 375.

The slopes are 2 and -1/2. The angle θ = tan^(-1) |(m1 - m2) / (1 + m1*m2)| = tan^(-1)(|2 + 1/2| / |1 - 1|) = 90 degrees.

Carbon dioxide is a byproduct of respiration in plants.

In metaphase, chromosomes line up at the metaphase plate before being separated.

Using the limit property, lim (x -> 0) (sin(kx)/x) = k, thus lim (x -> 0) (sin(5x)/x) = 5.

Factoring gives (x - 3)(x + 3)/(x - 3), canceling gives x + 3, substituting x = 3 gives 6.

The common difference is 5. The nth term of an arithmetic sequence is given by a_n = a + (n-1)d. Here, a = 5, d = 5, n = 10. So, a_10 = 5 + (10-1) * 5 = 5 + 45 = 50.

The coefficient is C(8,5) * (2)^5 * (-3)^3 = 56 * 32 * -27 = -48384.

Using the power rule, f'(x) = 12x^2 - 6x + 2.

Using L'Hôpital's rule, the limit evaluates to 1/2.

Factoring gives (x - 1)(x^2 + x + 1)/(x - 1), canceling gives x^2 + x + 1, substituting x = 1 gives 3.

Using the binomial theorem, (2 + 3)^4 = 5^4 = 625.

Expanding gives x^2 + 4 = 5, so x^2 = 1, thus x = ±1.

Setting x = 0 in the equation gives y = 8. Thus, the y-intercept is 8.

Increasing the concentration of A will shift the equilibrium to the right to produce more products C and D.

The number of ways to form a committee of 4 from 8 is C(8, 4) = 70.

The number of 3-digit numbers is P(5, 3) = 5! / (5-3)! = 60.

The word 'BANANA' has 6 letters with 'A' appearing 3 times and 'N' appearing 2 times. The arrangements are 6! / (3! * 2!) = 60.

The word 'LEVEL' has 5 letters with 'L' appearing 2 times and 'E' appearing 2 times. The arrangements are 5! / (2! * 2!) = 30.

Mass = moles x molar mass = 0.5 moles x 58.5 g/mol = 29.25 g.

In the Lewis structure of water, there are 2 lone pairs on the oxygen atom.

The number of ways is C(6, 2) * C(5, 3) = 15 * 10 = 150.

The number of arrangements of 5 books is 5! = 120.

-2x > -4 => x < 2. The range is x < 2.

Molarity = moles/volume(L). Moles of NaOH = 10g / 40 g/mol = 0.25 moles. Molarity = 0.25 moles / 1 L = 0.25 M.

The reaction is 2Na + Cl2 → 2NaCl. Therefore, 2 moles of Na produce 2 moles of NaCl.