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3 years ago

Please Help, what is the answer

Mathematics

1 answer:

Butoxors [25]3 years ago

5 0

Answer:

The correct option is (2).

Step-by-step explanation:

We need to find the value of the given expression i.e.

$\dfrac{(8x^6)^2}{(4x^2)^3}$

We can calculate it as follows :

$\dfrac{(8x^6)^2}{(4x^2)^3}=\dfrac{8^2\times (x^6)^2}{(4)^3\times (x^2)^3}\\\\=\dfrac{x^{12}}{x^6}\\\\=x^6$

So, the final answer is x⁶. The correct option is (2).

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Vector v is plotted below. What is the length of the x-component of v?

Rzqust [24]

Answer:

C. 1

Step-by-step explanation:

We can see that each box in the grid is one unit.

We count one box to the right on the horizontal axis and 4 boxes down on the vertical axes to obtain the components of vector v.

See graph in attachment.

Therefore the components of vector v is

$\binom{1}{-4}$ .

The length of the x component is 1 unit

Hence the correct answer is C.

7 0

3 years ago

The gas co2 is diffusin at steady state through a tube 20 cm long having a diameter of 1 cm and containing n2 at 350 k . the tot

Marrrta [24]

The value is J = 1.71*10^-6 kmol/m^2.s

According to the given conditions we get,

The length the tube l= 0.20m

The diameter of the tube d= 0.01m

The total pressure inside the tube P= 101.32kPa

The partial pressure of CO2 at the first end is

P1= 456mm Hg = 60794.832 Pa

The partial pressure of CO2 at the other end is

P2= 76mm Hg = 10132.472 Pa

The temperature is T = 298 K

The diffusion coefficient D= 1.67* 10^-5 m^2/s

Generally the molar flux of CO2 is mathematically represented as

J= D{p1-p2} / R.T

Here R is the gas constant with value R= 8.314 j/kmol

So we get J= 1.71 * 10^-3 mol/m^2.sec

Learn more about Mole on:

brainly.com/question/27270616

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4 0

2 years ago

Calculate the size of θ in the given diagram ( see image). O is the center of the circle.

mariarad [96]

Answer:

∅ = 42°

Step-by-step explanation:

90 - 48 = 42° because 48 and 42 are complimentary angles (add up to 90°)

because the radii lines form an isosceles triangle, ∠∅ also = 42°

3 0

2 years ago

Read 2 more answers

An Olympic-size swimming pool holds 2,500 kiloliters of water. After swimmers splash water out of the pool, there are 24,500 hec

Kruka [31]

2,500 kiloliters = 2,500 × 10 = 25,000 hectoliters
25,000 − 24,500 = 500 hectoliters

5 0

3 years ago

Read 2 more answers

What is the midpoint of AB if A = (−2, 2) and B = (3, −1)?

Irina-Kira [14]

Midpoint formula (x1 + x2) / 2, (y1 + y2)/2
(-2,2)...x1 = -2 and y1 = 2
(3,-1)...x2 = 3 and y2 = -1
now we sub
m = (-2 + 3) / 2 , (2 - 1) / 2
m = (1/2, 1/2) <===

6 0

3 years ago