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riadik2000 [5.3K]
3 years ago
7

7

Mathematics
1 answer:
LUCKY_DIMON [66]3 years ago
5 0

The answer is B. 15 cm

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What is the length of one side of a regular pentagon if the perimeter is 120 cm?
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The answer is D: 5p = 120
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Find the remaining factors of x^3+6x^2-4x+3 given (x+2)
satela [25.4K]

Answer:

y=(x+6)(x−2)(x+2) 

Step-by-step explanation:

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1 year ago
List all the factors of 39 from least to greatest.<br> onarato gach factor
Elan Coil [88]

Answer:

(1 x 39) (3 x 13) (13 x 3) (39 x 1)

Step-by-step explanation:

those are all the factors

5 0
3 years ago
Read 2 more answers
-6x+5y+2z=-11<br> -2x+y+4z=-9<br> 4x-5y+5z=-4
AlladinOne [14]

Answer:

[4, 3, -1]

Explanation:

When solving systems of equations in three variables, pick two equations to work with first, solve for both variables, plug them into one of the equations you first started on, then in the end, put them altogether:

{-6<em>x</em> + 5<em>y</em> + 2<em>z</em> = -11 ←

{-2<em>x</em> + <em>y</em> + 4<em>z</em> = -9 We can eliminate the<em> </em><em>y-</em><em>values</em><em> </em>obviously

{4<em>x</em> - 5<em>y</em> + 5<em>z</em> = -4 ←

{-6<em>x</em> + 5<em>y</em> + 2<em>z</em> = -11

{4<em>x</em> - 5<em>y</em> + 5<em>z</em> = -4

___________________

-2<em>x</em> + 7<em>z</em> = -15

- 7<em>z</em> -7<em>z</em>

______________

-2<em>x</em> = -15 - 7<em>z</em>

___ ________

-2 -2

<em>x</em> = 7½ + 3½<em>z</em>

-2[7½ + 3½<em>z</em>] + <em>y</em> + 4<em>z</em> = -9

-15 - 7<em>z</em> + <em>y</em> + 4<em>z</em> = -9

-15 - 3<em>z</em> + <em>y</em> = -9

+15 + 15

_______________

-3<em>z</em> + <em>y</em> = 6

+3<em>z</em> + 3<em>z</em>

<em>y</em> = 6 + 3<em>z</em> [Plug in -1 for <em>z</em><em> </em>to give you the y-value of 3; 3 = <em>y</em>; since you now have both <em>z</em><em> </em>and <em>y</em><em> </em>terms, plug in these terms back into all three equations above to get the x-value of 4.]; 4 = <em>x</em> ⤻

-6[7½ + 3½<em>z</em>] + 5[6 + 3<em>z</em>] + 2<em>z</em> = -11

-45 - 21<em>z</em> + 30 + 15<em>z</em> + 2<em>z</em> = -11

-15 - 4<em>z</em> = -11

+15 + 15

_____________

-4<em>z</em> = 4

___ __

-4 -4

<em>z</em> = -1 [Plug this into the equation for <em>y</em>]⤻

I am joyous to assist you anytime.

3 0
3 years ago
Will mark you brainliest once you get the answer correct!!
BartSMP [9]
The answer is thirty four
5 0
3 years ago
Read 2 more answers
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