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Posted by Harshita Chaudhary 4 years ago
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Sia ? 4 years ago
Here, {tex}\frac {3}{13} \div \frac {-4}{65}{/tex}
= {tex}\frac {3}{13} \times \frac {65}{-4}{/tex}
= {tex}\frac {65 \times 3}{13 \times (-4)}{/tex}
= {tex}\frac {15}{-4}{/tex}
Therefore, the reciprocal is {tex}\frac {-4}{15}{/tex}
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Sia ? 4 years ago
If the hypotenuse and leg of one right triangle are congruent to the corresponding parts of another right triangle, the right triangles are congruent. The "included angle" in SAS is the angle formed by the two sides of the triangle being used. The "included side" in ASA is the side between the angles being used.
Posted by Priyanshi Rajput 4 years ago
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Sia ? 4 years ago
Given: Area of parallelogram=1470 cm2
Base(AB)=35 cm and base(AD)=49 cm
Since, Area of parallelogram=base×height
⇒1470=35×DL
⇒ DL=1470/35
⇒ DL=42 cm
Again, Area of parallelogram=base×height
⇒1470=49×BM
⇒BM=1470/49
⇒BM=30 cm
Thus, the lengths of DL and BM are 42 cm and 30 cm respectively.
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Sia ? 4 years ago
The letter "x" is often used in algebra to mean a value that is not yet known. It is called a "variable" or sometimes an "unknown". In x + 2 = 7, x is a variable, but we can work out its value if we try! A variable doesn't have to be "x", it could be "y", "w" or any letter, name or symbol.
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जिन संख्याओं को दो संख्या (p / q रूप) के अनुपात (ratio) के रूप में व्यक्त किया जा सकता है, उन्हें परिमेय संख्या (rational number) कहा जाता है। 1) जिन संख्याओं को दो संख्याओं के अनुपात (ratio) के रूप में व्यक्त नहीं किया जा सकता है , उन्हें एक अपरिमेय संख्या (irrational number) कहा जाता है।
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Bi Bi Haniffa 4 years, 1 month ago
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Sia ? 4 years, 1 month ago
Temperature of the room in the beginning = 50oC
Temperature after 1 hour
= 50oC -1 {tex}\times{/tex} 3oC = 50oC - 3oC = 47oC
Similarly, temperature of the room after 15 hours
= 50oC - 10 {tex}\times{/tex} 3oC = 50oC - 30oC = 20oC
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Gayathri R 4 years ago
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