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sergey [27]
3 years ago
15

Solution set for 6a^2-a-5=0

Mathematics
2 answers:
UNO [17]3 years ago
7 0
6a^2-a-5=0\\\\6a^2+5a-6a-5=0\\\\a(6a+5)-1(6a+5)=0\\\\(6a+5)(a-1)=0\iff6a+5=0\ \vee\ a-1=0\\\\6a+5=0\ \ |-5\\6a=-5\ \ \ |:6\\a=-\dfrac{5}{6}\\\\a-1=0\ \ \ |+1\\a=1\\\\Answer:\ \boxed{a=-\dfrac{5}{6}\ \vee\ a=1}
VMariaS [17]3 years ago
6 0
(step 1) (6a+5)(a-1)=0

 (step 2) 6a+5=0 or a-1=0

answer is
a= -5/6 or a= 1
 i hope this helps! ;)
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Molly owes her brother $300.She works for $10 per hour as a checker at the local grocery store.Molly plans to repay her brother
gavmur [86]

Answer: The expression which represents the condition described is given as  4x=300

Step-by-step explanation:

Since we have given that

Amount that Molly owes her brother = $300

Let the number of hours she worked as a checker be x

Cost of per hour = $10

Amount she get after doing work for x hours is given by

10x

Rate of tax are taken out = 80%

So, amount she left with is given by

\frac{100-20}{100}\times 10x\\\\=\frac{80}{100}\times 10x\\\\=8x

So, Molly plans to repay her brother half of what she earns is given by

\frac{8x}{2}=4x

According to question,

4x=300\\\\x=\frac{300}{4}\\\\x=75\ hours

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4 years ago
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marissa [1.9K]
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3 years ago
17. Test Practice which represents the number that is ten more than two
AleksAgata [21]

Answer:

2,080

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The points (-3,-1) and (-3,5) are adjacent vertices of a rectangle. Two of the sides of the rectangle have a length of 8 units.
taurus [48]

Answer:

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Step-by-step explanation:

Data

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B (-3 , 5)

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Process

1.- Calculate the distance between A and B

dAB = \sqrt{(x2 - x1)^{2} + (y2 - y1)^{2}}

x1 = -3     y1 = -1

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-Substitution

dAB = \sqrt{(-3 + 3)^{2}+ (5 + 1)^{2}}

dAB = \sqrt{0^{2} + 6^{2}}

dAB = \sqrt{36}

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2.- Calculate the diagonal using the Pythagorean theorem.

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3 years ago
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