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posledela
3 years ago
8

Which answer choice is equivalent to the expression below?

Mathematics
2 answers:
anyanavicka [17]3 years ago
8 0
In order to know the equivalent expression of the given above, all we need to do is to simplify it. So, for the exponents, what we need to do is just subtract.
The final answer would be 3/2xy^3. So the answer is option C. Hope this is the answer that you are looking for. 
White raven [17]3 years ago
6 0

Answer:

The correct option is A.

Step-by-step explanation:

The given expression is

\frac{3x^2y^4}{2xy}

It can be written as

\frac{3}{2}\cdot \frac{x^2}{x}\cdot \frac{y^4}{y}

According to quotient property of exponent:

\frac{a^m}{a^n}=a^{m-n}

Using quotient property of exponent, we get

\frac{3}{2}\cdot x^{2-1}\cdot y^{4-1}

\frac{3}{2}\cdot x\cdot y^{3}

\frac{3xy^3}{2}

The expression \frac{3xy^3}{2} is equivalent to the given expression.

Therefore the correct option is A.

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(3,4) and (12,19) find the equation of the line that passes through it
harina [27]

Answer:

The equation of the line will be:

y=\frac{5}{3}x-1

Step-by-step explanation:

Given the points

  • (3, 4)
  • (12, 9)

Finding the slope between (3, 4) and (12, 9)

\left(x_1,\:y_1\right)=\left(3,\:4\right),\:\left(x_2,\:y_2\right)=\left(12,\:19\right)

\mathrm{Slope}=\frac{y_2-y_1}{x_2-x_1}

m=\frac{19-4}{12-3}

m=\frac{5}{3}

The equation of the line can be obtained using the point-slope form of the equation of the line

y-y_1=m\left(x-x_1\right)

substituting the values m = 5/9 and the point (3, 4)

y-4=\frac{5}{3}\left(x-3\right)

y-4+4=\frac{5}{3}\left(x-3\right)+4

y=\frac{5}{3}x-1

Therefore, the equation of the line will be:

y=\frac{5}{3}x-1

5 0
3 years ago
Multiplying radicals
Mazyrski [523]

\bf (\sqrt{8x})(5\sqrt{2x})\implies 5\sqrt{2x\cdot 8x}\implies 5\sqrt{16x^2}\implies 5\sqrt{4^2x^2} \\\\\\ 5\sqrt{(4x)^2}\implies 5(4x)\implies 20x

8 0
3 years ago
1)A cylindrical container has a diameter has diameter of 14cm and height of 20cm and is full of water. A student pours the water
attashe74 [19]

Answer:

Hey there!

1) To solve this, we want to know the volume of the first cylinder, which using the cylinder volume formula, we find is roughly 3079 cm^3. If the water is poured into the second cylinder, we find that the height is about 9.8 cm.

2) First, we should know that 1000 cm^3=1 liter. Volume of 1 cm tank height: 3848 cm^3, or 3.848 l. Volume for 20  cm tank height= 76.96 l. It takes about 7.7 hrs for the water level to fall 20 cm.

3) Cylinder volume formula gives us the answer to be 176 m^3 as the volume.

Hope this helps :)

6 0
3 years ago
Gary ran 7 miles in 55 minutes what his rate of speed in miles per minutes
wel
I reccomend the search bar up at the top ("What is your question") before you ask questions, to make sure they're not already answered.

There is a formula d = rt, distance = rate*time. So
r = d/t.
r = 7mi/55min = 0.127mi/min


Or another way to see this:
\frac{7 miles}{55min} \frac{/55}{/55} = 0.127 mi/min
8 0
3 years ago
An important postulate in geometry states: "Through Point P, there is only one line parallel to ". What is the equation of line
telo118 [61]
At first we will find the slope of the line that <span>passes through the points A and B
</span>
<span>A ( -10,8), B(2,3)
slope = (Δy)/(Δx) = (3-8)/(2-(-10)) = -5/12

the require line is parallel to the line </span><span><span>passes through the points A and B
</span>∴ the slope of the line </span><span>that passes through Point X = -5/12
and have a general form
   y = m x + c
where m is the slope and c is constant
the constant can be calculated by substituting with the point x (-5,10) in the equation of general form
∴ 10 = (-5/12)*-5 + c
   c = 10 - 25/12 = 95/12
∴ y = (-5/12)x +95/12  ⇒⇒⇒⇒ multiplying the equation by 12

∴ 12y = -5x +95 
</span>
5 0
3 years ago
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