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AlladinOne [14]
3 years ago
15

Four times a number, minus 8, is equal to three times the number plus 4

Mathematics
2 answers:
Eva8 [605]3 years ago
6 0

Answer:

4n-8=3n+4

Step-by-step explanation:

4n-8=3n+4

   +8      +8

4n=3n+12

-3n  -3n

n=12

Oxana [17]3 years ago
4 0

Step-by-step explanation:

correct equation is

(4x - 8 ) =(3x + 4)

4x - 3x = 8 + 4

x = 12

hope it helps

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Need help with this math problem
Andre45 [30]

Hey There!

First you would need to factor out the two.

-4x^3/2 = -2x^3

2x^2/2= x^2

12x/2= 6x

6/2= 3

Now we have.

-2x^3+x^2+6x+3 / x+1

We would then factor with polynomial division, and then we should have.

-2(2x^2 - 3x - 3)(x+1) / x+1

We would then cancel out the x+1

Therefore, the answer would be \boxed{-2(2x^2-3x-3)}

Hope this helped!

8 0
3 years ago
It would be SUPER helpful if you could answer this question! The height of a right square pyramid is multiplied by 6, but the ar
diamong [38]

Answer:

  B.  6

Step-by-step explanation:

The volume is proportional to the height. The ratio of the heights of the taller to shorter pyramids is 6 : 1. Since the pyramids have the same base ares, this is also the ratio of volumes.

The volume ratio is 6.

7 0
3 years ago
Do 0.3 and 3.0 have same value?explain
SSSSS [86.1K]
Solutions 

0.3 and 3.0 have different values.

The decimal <span>0.3 is behind the decimal and it is in the 10ths place.

3.0 is a whole number.</span>
8 0
3 years ago
Find the surface area of the cylinder in terms of straight pi.<br> 14 r 15 h
Reptile [31]

Answer:

The lateral surface area of the cylinder would be 420 π (pi) units^{2}

If the value of π (pi) is taken as 3.14 the exact lateral surface area of the cylinder would be 1318.8 units^{2}


The total surface area of the cylinder would be 812 π (pi) units^{2}

If the value of π (pi) is taken as 3.14 the exact total surface area of the cylinder would be 2549.68 units^{2}


Step-by-step explanation:

The formula for lateral surface area of a cylinder is :

= 2 * pi (π) * radius (r) * height (h)

In this question, the radius (r) is given as 14 units and the height (h) is given as 15 units.

Therefore, the lateral surface area would can be calculated as follows :

= 2 * π * r * h

= 2 * π * 14 * 15

= 2 * π * 210

= 420 π units^{2}


If the value of π (pi) is taken as 3.14 the exact lateral surface area of the cylinder would be:


= 420 * 3.14

= 1318.8 units^{2}



Now, talking about the total surface area :

The formula for total surface area of a cylinder is :

= [2 * pi (π) * radius (r) * height (h)] + [2 * π * radius (r)^{2}]

In this question, the radius (r) is given as 14 units and the height (h) is given as 15 units.

Therefore, the total surface area of the cylinder can be calculated as follows :

= (2 * π * r * h) + (2 * π * r^{2})

= (2 * π * 14 * 15) + (2 * π * 14^{2})

= (2 * π * 210) + (2 * π * 196)

= 420 π + 392 pi

= 812 π units^{2}


If the value of π (pi) is taken as 3.14 the exact total surface area of the cylinder would be :


= 812* 3.14

= 2549.68 units^{2}


3 0
3 years ago
Pls answer my question . It's math and I need help .
Mandarinka [93]
You have to put the question on here
4 0
3 years ago
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