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vesna_86 [32]
3 years ago
7

How would i solve 8x squared plus 4x =0

Mathematics
2 answers:
lbvjy [14]3 years ago
7 0
(8x^2)+4x=0
you would use quadratic formula which is -b +/- square root ((b^2)-4ac)/2a
a: 8
b: 4
c: 0
-4 +/- square root ((4^2)-4(8)(0))/2(8)
(-4+ square root 16)/16 = 0
(-4- square root 16)/16 = -0.5
the two solutions are 0 and -0.5
MAVERICK [17]3 years ago
6 0
8x squared plus 4x =0

A:8
B:4
C:0
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Answer:

81

Step-by-step explanation:

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8 0
3 years ago
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Answer:

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3 years ago
Please help and explain!!!!!
FinnZ [79.3K]

Let x be the amount of the 30% alloy and y the amount of the 60% alloy the metalworker will use. However much is used, the final alloy will have a mass of

x+y=100

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0.3x+0.6y=0.54(x+y)=54

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x+y=100\implies y=100-x

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6 0
4 years ago
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ale4655 [162]
The answer is:
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4 years ago
It takes 9 minutes to fill an empty aquarium of a depth of 3/5 meters. What is the unit rate in minutes per meter?
GarryVolchara [31]

Answer:

<h2>The rate is 15 minutes per meter.</h2>

Step-by-step explanation:

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Filling 3 meters of the aquarium takes 5\times9 = 45 minutes time (Multiplying by 5 both the numbers).

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