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garik1379 [7]
3 years ago
7

Can some one help please help me

Mathematics
1 answer:
Vedmedyk [2.9K]3 years ago
5 0

Answer:

5\:\:and\:\:7 are the required consecutive odd integers.

Step-by-step explanation:

Let's say, the two consecutive odd integers be, x and x+2.

x\left(x+2\right)=2\left(x+2\right)+21\\\\x^2+2x=2x+4+21\\\\\mathrm{Subtract\:}2x\mathrm{\:from\:both\:sides}\\\\x^2+2x=2x+25\\\\x^2+2x-2x=2x+25-2x\\\\x^2=25\\\\x=5

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Step-by-step explanation:

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If b+c-a/a, c+a-b/CA are in A.P., prove that a, b, c are in<br>Н.Р.​
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Step-by-step explanation:

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3 years ago
Help please! these questions are really confusing me
Anettt [7]

Answer:

Figure 1: Option A :   $ \sqrt{\frac{\textbf{3}}{\textbf{2}}} $ ;   $ \frac{\textbf{1}}{\textbf{2}} $ ;  $ \sqrt{\textbf{3}}} $

Figure 2: Option B: $ \frac{\sqrt{\textbf{19}}}{\textbf{10}} $ ;     $ \frac{\textbf{9}}{\textbf{10}} $ ;  $ \frac{\sqrt{\textbf{19}}}{\textbf{9}} $

Figure 3: Option C:  $ \frac{\textbf{4}}{\textbf{5}} $  ;  $ \frac{\textbf{3}}{\textbf{5}} $ ;  $ \frac{\textbf{4}}{\textbf{3}} $

Step-by-step explanation:

$ \textbf{Sin  A} \hspace{1mm} \textbf{= } \hspace{1mm} \frac{\textbf{opp}}{\textbf{hyp}} $

$ \textbf{Cos A} \hspace{1mm} {\textbf{=} \hspace{1mm} \frac{\textbf{adj}}{\textbf{hyp}} $

$ \textbf{Tan A} \hspace{1mm} \textbf{=} \hspace{1mm} \frac{\textbf{Sin A}}{\textbf{Cos A}} $

We can simply follow these three formulas to solve the problem.

Figure 1:

Sin A = $ \frac{6\sqrt{3}}{12} $  = $ \frac{\sqrt{3}}{2} $

Cos A = $ \frac{6}{12} = \frac{1}{2} $

Tan A = $ \frac{\frac{\sqrt{3}}{2}}{\frac{1}{2}}} $  = $ \sqrt{3} $

Figure 2:

Sin A = $ \frac{2\sqrt{19}}{20} $  = $ \frac{\sqrt{19}}{10} $

Cos A = $ \frac{18}{20} = \frac{9}{10} $

Tan A = $ \frac{\frac{\sqrt{19}}{10}}{\frac{10}{9}} $ = $ \frac{\sqrt{19}}{9} $

Figure 3:

Sin A =   $ \frac{16}{20} $   = $ \frac{4}{5} $

Cos A = $ \frac{12}{20} = \frac{3}{5} $

Tan A = $ \frac{\frac{4}{5}}{\frac{3}{5}} $  = $ \frac{4}{3} $

Hence, the answer.

6 0
3 years ago
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avanturin [10]
Simple....

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Question 13 (1 point)
sergejj [24]

Answer:

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Step-by-step explanation:

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