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MaRussiya [10]
3 years ago
10

Can somebody help me with these 2. Will Mark Brainliest.

Mathematics
1 answer:
RSB [31]3 years ago
8 0

Answer:

for the first one, because its tan of D and also tan formula is opp/adj it should be tanD=80/18

for the second one, because sin(A) and cos(B) is the same thing, if one increases the other would increase as well

Step-by-step explanation:

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Answer:

1.668 S

Step-by-step explanation:

We are given that

A\rightarrowProduct

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t=\frac{1}{k}ln\frac{A_0}{A}

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Rate constant=k=0.740s^{-1}

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We have to find the time taken by the reaction when concentration of A to decrease from 0.790 M to 0.230 M.

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t=\frac{2.303}{0.740}log\frac{0.79}{0.23}

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4 0
4 years ago
0.8% of what number is 6
algol [13]
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3 years ago
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Step-by-step explanation:

There you go my answer is pretty much the explanation

not sure what grade this is but if this is collage than that would be the answer

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Answer:

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4 0
3 years ago
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