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MakcuM [25]
3 years ago
12

Can someone please help me??

Mathematics
2 answers:
iren2701 [21]3 years ago
8 0

Answer:

the first one

Step-by-step explanation:

using y=mx+b, you can find which has a "bigger" slope.

Nutka1998 [239]3 years ago
4 0
The first one have a good day
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7x + 4y = -3<br> -7x - 5y = 9<br> How do I solve using elimination
mel-nik [20]

Answer:

X=3, y=-6

Step-by-step explanation:

7x+4y=-3 equation 1

-7x-5y=9 equation 2

     -y=6. Add above two equations    

      Y=-6

solve for x by inputting y value into either equation.

7x+4(-6)=-3

7x-24=-3

7x=21

x=3

check answer by inputting x and y values into either equation

-7x-5y=9

-7(3)-5(-6)=9

–21+30=9

9=9

5 0
3 years ago
Three pizzas are share equally among 12 people. What fraction will each person get
victus00 [196]

Answer:

<u>1/4</u>

Step-by-step explanation:

if you take the fraction 3/12 and divide it by 3 on both sides, you get the remaining fraction 1/4

3 0
3 years ago
Read 2 more answers
What is the determinant of the coefficient matrix of the system {4x+3y+2z=0 -3x+y+5z=0 -x-4y+3z=0
slava [35]

Answer:

  130

Step-by-step explanation:

You want the determinant of the matrix ...

  \left[\begin{array}{ccc}4&3&2\\-3&1&5\\-1&-4&3\end{array}\right]

One way to figure it is as the difference between the sum of products of the down-diagonals and the sum of products of the up-diagonals:

  D = (4)(1)(3) +(3)(5)(-1) +(2)(-3)(-4) -(-1)(1)(2) -(-4)(5)(4) -(3)(-3)(3)

  = 12 -15 +24 +2 +80 +27

  D = 130

The determinant of the coefficient matrix is 130.

_____

Many scientific and graphing calculators and web sites can perform this calculation for you.

7 0
3 years ago
Just the last two ones please and thank you if you awnsered this
Rudik [331]
Number 1 is twenty and number two is fifty six
8 0
3 years ago
What is the sum?<br> 6x^7 + 8x^7
BaLLatris [955]
Since both terms have the same variable to the same power, you can simply add the coefficients...

14x^7
3 0
3 years ago
Read 2 more answers
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