3 years ago

Find the discriminant 8y^2-2y+9=0

Mathematics

2 answers:

Lesechka [4]3 years ago

8 0

Answer:3

Step-by-step explanation:

Yuri [45]3 years ago

7 0

Answer:

The answer is 3

Step-by-step explanation:

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mr_godi [17]

Answer:

1/5

Step-by-step explanation:

first write the formula of average speed

2) then equate the values of given question
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2 years ago

Factorise a.x3+4.a.x

Contact [7]

Answer:

${ax}^{3} + 4ax \\$

factorise out a and x :

${ \boxed{answer{= ax( {x}^{2} + 4) }}}\\ but \: farther \: more : \\ = ax( {x}^{2} + {2}^{2} )$

but from general factorization:

${ \boxed{( {a}^{2} + {b}^{2}) = {(a + b)}^{2} - 2ab }}$

a » x

b » 2

therefore:

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2 years ago

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jasenka [17]

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Step-by-step explanation:

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2 years ago

Sasha can mow 3/8 of an acre of grass in 45minutes.how many acres of grass does Sasha now per hour?

horrorfan [7]

Keeping in mind that an hour is 60 minutes.

$\bf \begin{array}{ccll}
\stackrel{acre}{grass}&\stackrel{minutes}{time}\\
\text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\
\frac{3}{8}&45\\
g&60
\end{array}\implies \cfrac{\frac{3}{8}}{g}=\cfrac{45}{60}\implies \cfrac{\frac{3}{8}}{\frac{g}{1}}=\cfrac{45}{60}\implies \cfrac{3}{8}\cdot \cfrac{1}{g}=\cfrac{45}{60}
\\\\\\
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2 years ago

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damaskus [11]

Answer:

3.7

Step-by-step explanation:

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2 years ago