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lesya [120]
4 years ago
6

Whats the answer and why?

Mathematics
1 answer:
san4es73 [151]4 years ago
6 0

A) -13

Bcz

x^2-13x+12=0

x^2-x-12x+12=0

x(x-1)-12(x-1)=0

(x-1)(x-12)=0

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The shaded quilt piece has 4 equal sides. What type of quadrilateral is it?
Dennis_Churaev [7]

Answer:

C. Rhombus

Step-by-step explanation:

Because the shaded shape is has 4 sides and looks like a rhombus

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3 years ago
14. What is the solution of the system? Use elimination.<br> 9x + y = 30<br> 6x - y = 15
klemol [59]

Answer:

x=90/16,y=-150/16

Step-by-step explanation:

Simultaneous equation and we are to use elimination method

9x+y=30...(1)

6x-y=15..(2)

Add (1) and (2)

16x=15

Divide both sides by 16

x=15/16

Then substitute the value of x into (2)

6(15/16)-y=15

90/16-y=15

Substrate 15 from both sides

90/16-y-15=0

Add y to both sides

90/16-15=y

Lcm for only the left side which is 16

90-240/16=y

-150/16=y

Therefore x is 90/16 and y is -150/16

6 0
3 years ago
Which statment descirbes the soloution to a equation<br> a+5(2a-1)+3=11a-2
Andreyy89

Answer:

Any real number.

Step-by-step explanation:

I dunno what you're asking, but Im assuming you need what a equals to.

a+5(2a-1)+3=11a-2\\a+10a-5+3=11a-2\\11a-2=11a-2\\

The answer is any real number.

7 0
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B

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