Simplify -15.5 over 5

Mathematics

1 answer:

PolarNik [594]3 years ago

5 0

Your answer is -3.1. Divide -15.5 by 5

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If a+b+c=0 for a,b,c then prove a²/bc+b²/ca+c²/ab=3.

Ierofanga [76]

According to the identity if a+b+c=0
then a3+b3+c3=3abc
a3+b3+c3/abc=3
a2*a/bc*a+b2*b/ca*b+c2*c/ab*c=3
cancel a,b,c in all the fraction then you get
<span>a²/bc+b²/ca+c²/ab=3.
</span>hence proved

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3 years ago

Please answer this question with any of the 4 choices i have been struggling with this

kotegsom [21]

Answer:

Choice A. $\frac{2}{3}$

Step-by-step explanation:

Turn the mixed numbers into improper fractions:

$\frac{14}{9} /\frac{7}{3}$

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$\frac{14}{9} /\frac{3}{7}$
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Simplify:

$\frac{2}{3}$

7 0

3 years ago

Read 2 more answers

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brilliants [131]

Answer: A

Step-by-step explanation: Complementary angles must add up to 90 degrees.

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3 years ago

26 ptss!! select the expressions that are equivalent to the expression below.

valkas [14]

Answer:

1st, 2nd, and last.

Step-by-step explanation:

For the first two common rules can be applied such as $n\sqrt{a/b}$ = $\frac{\sqrt[n]{a} }{\sqrt[n]{b} }$ and that $\sqrt[n]{\frac{a}{b} } = (\frac{a}{b})^{n}$

and for the last one this is just simplifying the radical and if you factor it you realize that, $\frac{750}{512} = \frac{5^3}{8^3}*6$ meaning that you can take the radical off of 5/8 and end up with that final answer