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professor190 [17]
4 years ago
12

I need help with solving these and my teacher wants me to do it like in the example but I dont understand ​

Mathematics
1 answer:
loris [4]4 years ago
4 0

Answer: https://drive.google.com/file/d/1g7bDTS0c5Sz30JzGjsQl30tZX5sfUqe_/view?usp=drivesdk (answer to bottom left one)

Step-by-step explanation: that link should help somewhat

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Answer:

0.95

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3 years ago
X^2-x+12 solve using the quadratic formula
devlian [24]

The quadratic formula is x=\frac{-b\pm\sqrt{b^2-4ac} }{2a}.

From the problem, a is 1, b is -1, and c is 12. Plugging in these values gives:

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4 0
4 years ago
Solve : <br> 20-9x=11<br> 4(2x+1)=8<br> 5(2x+5)=-15<br> 3(8x+1)=-21
laila [671]
<span>20-9x=11
-9x=11-20
-9x= -9
x= -9/(-9)
x=1


4(2x+1)=8
2x+1=8/4
2x+1=2
2x=2-1
2x=1
x=1/2
x=0.5


5(2x+5)=-15
2x+5= -15/5
2x+5= -3
2x= -3-5
2x= -8
x= -8/2
x=-4

3(8x+1)=-21
8x+1= -21/3
8x+1= -7
8x= -7-1
8x =-8
x= -8/8
x= -1
</span>
4 0
3 years ago
Which of the following is a monomial?
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Which linear function shows a direct variation?
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Answer:

I think it is C

Step-by-step explanation:

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