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dezoksy [38]
3 years ago
7

Given the system below, which points are solutions? (check all that apply)

Mathematics
1 answer:
LuckyWell [14K]3 years ago
7 0
It’s 3.46 and 6.64hrhss
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The bedroom and office in the diagrams below are similar rectangles. The walls on the left sides in the diagram are proportional
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Answer:

D. 16.8

Step-by-step explanation:

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Use Cramers Rule to solve the system <br> 2x - 3y = 11<br> -6x + 8y = 34
Nastasia [14]

Step-by-step explanation:

given :

2x - 3y = 11

-6x + 8y = 34

find : the solutions of the system by using Cramers Rule.

solutions:

in the matrix 2x2 form =>

[ 2 -3] [x] [11]

=

[-6 8] [ y] [34]

D =

| 2 -3 |

|-6 8 |

= 8×2 - (-3) (-6)

= 16-18 = -2

Dx = | 11 -3 |

| 34 8 |

= 11×8 - (-3) (34)

= 88 + 102

= 190

Dy = | 2 11 |

|-6 34 |

= 2×34 - (-6) (11)

= 68 + 66

= 134

x = Dx/D = 190/-2 = -95

y = Dy/D = 134/-2 = -67

the solutions = {-95, -67}

8 0
2 years ago
Read 2 more answers
A rectangular picture frame has a width of 9 cm and a length of x cm.
Fantom [35]

Answer:

x+9

Step-by-step explanation:

the perimeter of any polygon is the sum of all the sides

7 0
2 years ago
Salut! <br> |4x^2+9x-9|=0 <br> X= ? <br> Multumesc in avans :D
Afina-wow [57]
X=3 or -3/4.<span>Îmi pare rău că nu mi-am arătat munca</span>
8 0
3 years ago
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