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kow [346]
3 years ago
10

What is the value of the expression below? (27^2/3)^1/2 Please explain!!

Mathematics
1 answer:
lubasha [3.4K]3 years ago
6 0

Answer:

3

Step-by-step explanation:

First deal with the brackets

27^2/3 can be written as

( \sqrt[3]{27} ) ^{2 }

which simplifies to 3^2

which is 9

so now you have (9)^1/2

which is also written as

\sqrt{9}

which is 3

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liubo4ka [24]

Answer:

-18 C°

Step-by-step explanation:

Warmed means add cooled means subtract

starting at -23 it warmed by 8 add 8

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8 0
2 years ago
Solve the system 2x+4y=16 5x +3y=19 then find the value of y/x
AURORKA [14]

Answer:

I would change 2x+4y=24 into x=12–2y

To do that, divide both sides by 2 and then subtract 2y on each side.

After that, substitute for x. 3x+2y=19 would become 3(12–2y)+2y=19.

Then solve.

3(12–2y)+2y=19

36–6y+2y=19

-4y+36=19

-4y=-17

y=4.25

Then, substitute y in either equation.

Either this:

3x+2y=19

3x+2(4.25)=19

3x+8.5=19

3x=10.5

x=3.5

Or:

2x+4y=24

2x+4(4.25)=24

2x+17=24

2x=7

x=3.5

Or you could solve it in the equation you created in the beginning:

x=12–2y

x=12–2(4.25)

x=12–8.5

x=3.5

The coordinates where the lines intercept are (3.5, 4.25).

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4 0
3 years ago
A pipe is 25 inches long and has a diameter of
Lilit [14]

Answer:

The lateral area is 392.5 sq. inches.

Step-by-step explanation:

The pipe is in a shape of a cylinder. The lateral area formula for a cylinder is:

Lateral Area = 2\pi r h

Where

r is the radius (half of diameter)

h is the height

Given, diameter = 5

so,

radius = 5/2 = 2.5

Also,

height = 25 inches (same as length, here)

Now we use 3.14 for \pi and substitute the values to get the lateral area:

Lateral Area = 2\pi r h = 2(3.14)(2.5)(25)=392.5

The lateral area is 392.5 sq. inches.

4 0
3 years ago
Can someone good at math give me a hand I really need some w
dedylja [7]
What is the question that u need help with
5 0
3 years ago
1)
Dominik [7]

Answer:

a

Step-by-step explanation:

4 0
2 years ago
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