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nexus9112 [7]
3 years ago
6

rs%3F%7D" id="TexFormula1" title=" \large \tt \blue{What \: are \: prime \: numbers?}" alt=" \large \tt \blue{What \: are \: prime \: numbers?}" align="absmiddle" class="latex-formula">
​
Mathematics
1 answer:
GrogVix [38]3 years ago
6 0
The numbers that are divisible by 1 and the number itself is called a prime number. Eg: 1,2,3,5,7,11,13,17,19
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The rectangle has an area of 42 sq. in. Which of these could be the dimensions of the rectangle?
photoshop1234 [79]

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Step-by-step explanation:

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Identify the angles of rotational symmetry for the figure.
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A mixture of compounds X and Y in a 0.100-cm cell had an absorbance of 0.215 at 272 nm and 0.191 at 327 nm. Find [X] and [Y] in
Oksi-84 [34.3K]

Answer: The concentration of X is 7.13582\times 10^{-6} and the concentration of Y is 2.53159\times 10^{-5}.

Step-by-step explanation:

Since we have given that

At 272 nm, absorbance = 0.215

At 327 nm, absorbance = 0.191

As we have given that

                               Compound X             Compound Y

272                               16400                            3870

327                                3990                             6420

So, our equations becomes

16400C_1+3870c_2=0.215\\\\3990C_1+6420C_2=0.191

By solving these two equations, we get that

C_1=7.13582\times 10^{-6}\\\\C_2=2.53159\times 10^{-5}

Hence, the concentration of X is 7.13582\times 10^{-6} and the concentration of Y is 2.53159\times 10^{-5}.

5 0
4 years ago
35 miles by 7 miles find the area for the triangle
SCORPION-xisa [38]

Answer:

35 x 7 = 245

Step-by-step explanation:

8 0
3 years ago
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