3 years ago

Which transformation(s) must map the square exactly onto itself? choose all that apply.

Mathematics

1 answer:

Semmy [17]3 years ago

3 0

Answer:

Step-by-step explanation:

The first four

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Draw a line through the point -2,2 with a slope of -3. Draw a line through the point 2,-2 with a slope of -3.

kykrilka [37]

Answer:

56874

Step-by-step explanation:

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3 years ago

Rationalise 10/√7-√2

s344n2d4d5 [400]

<h3>Solution:</h3>

$\frac{10}{ \sqrt{7} - \sqrt{2} } \\ = \frac{10}{ \sqrt{7} - \sqrt{2} } \times \frac{ \sqrt{7} + \sqrt{2} }{ \sqrt{7} + \sqrt{2} } \\ = \frac{10( \sqrt{7} + \sqrt{2}) }{( \sqrt{7} - \sqrt{2} )( \sqrt{7} + \sqrt{2} )} \\ = \frac{10 \sqrt{7} + 10 \sqrt{2} }{( { \sqrt{7} )}^{2} - ( \sqrt{2} ) ^{2} } \\ = \frac{10( \sqrt{7} + \sqrt{2} )}{7 - 2} \\ = \frac{10( \sqrt{7} + \sqrt{2} ) }{5} \\ = 2( \sqrt{7} + \sqrt{2} ) \\ = 2 \sqrt{7} + 2 \sqrt{2}$