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3 years ago

What would rate be equal to?

Mathematics

1 answer:

elena55 [62]3 years ago

3 0

Answer:

Step-by-step explanation:

Average rate equals the negative of delta concentration of reactants

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17 is 34% of what number

andrew-mc [135]

50 is the answer. Divide 17 by 34 and multiply by hundred.

8 0

3 years ago

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Perform the indicated operations below and simplify ((a+b)/4) + ((2a-b)/5).

ArbitrLikvidat [17]

Answer:

$\frac{(a+b)}{4} +\frac{(2a-b)}{5}=\frac{13a}{20} +\frac{b}{20}$

Step-by-step explanation:

We have:

$\frac{(a+b)}{4} +\frac{(2a-b)}{5}$

We can use common denominator.

Observation:

If you have, $\frac{a}{b} +\frac{c}{d}=\frac{(a*d)+(c*b)}{b*d}$

Then,

$\frac{(a+b)}{4} +\frac{(2a-b)}{5}=\frac{5(a+b)+4(2a-b)}{4*5}$

Using distributive property:

Observation:

c(a+b)=ca+cb

$\frac{5(a+b)+4(2a-b)}{4*5}=\frac{5a+5b+8a-4b}{20}=\frac{(5a+8a)+(5b-4b)}{20}$

Finally,

$\frac{(5a+8a)+(5b-4b)}{20} =\frac{13a+b}{20}=\frac{13a}{20} +\frac{b}{20}$

The answer then is:

$\frac{(a+b)}{4} +\frac{(2a-b)}{5}=\frac{13a}{20} +\frac{b}{20}$

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3 years ago

Find the sum of the "n" terms of the series: Sn=1²+3²+5²+...+(2n-1)²

djverab [1.8K]

Answer:

Step-by-step explanation:

12 + 32 + 52 + 72

= 1 + 9 + 25 + 49

= 84

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4 years ago

HELPPP Verify that csc theta cos theta tan theta=1

ZanzabumX [31]

Answer:

See Explanation

Step-by-step explanation:

$\csc \theta \: \cos \theta \: \tan \theta = 1 \\ \\ LHS = \csc \theta \: \cos \theta \: \tan \theta \: \\ \\ = \frac{1}{ \sin \theta} \: \times \cancel{ \cos \theta }\: \times \frac{ \sin \theta}{ \cancel{ \cos \theta }} \\ \\ = \frac{1}{ \cancel{ \sin \theta}} \: \times \cancel{ \sin \theta} \\ \\ = 1 \\ \\ = RHS \\ \\ hence \: proved$

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3 years ago

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Micah has two valuable watches.

BlackZzzverrR [31]

Answer:£149

Step-by-step explanation:

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3 years ago