3 years ago

Find area for 26,27,28

Mathematics

1 answer:

notsponge [240]3 years ago

8 0

I only know Q26 and that's 10x10/2

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Center (-9,0) radius 1

gogolik [260]

Answer:

Step-by-step explanation:

im guessing you need the equation of the circle?

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2 years ago

ivan has 6 times as many blue beads as red beads. he has 49 red and blue beads in all. how many blue beads does he have

sasho [114]

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3 years ago

If √2 = 1.414 then the value of 5+√2 / 5-√2 is

Gala2k [10]

Answer:

1.787

Step-by-step explanation:

$\\ \sf \frac{5 + \sqrt{2} }{5 - \sqrt{2} } \times \frac{5 + \sqrt{2} }{5 + \sqrt{2} }$

$\\ \sf = \frac{(5 + \sqrt{2}) }{5 - \sqrt{2} } \times \frac{(5 + \sqrt{2}) }{5 + \sqrt{2} }$

$\\ \sf = \frac{25 + 5 \sqrt{2 } + 5 \sqrt{2} + 2 }{( {5})^{2} - ( \sqrt{ {2}})^{2} }$

$\\ \sf = \frac{27 + 10 \sqrt{2} }{25 - 2}$

$\\ \sf = \frac{27 - 10 \sqrt{2} }{23}$

Now putting the value of√2

$\\ \sf = \frac{27 + 10 \times 1.414}{23}$

$\\ \sf = \frac{27 + 14.14}{23}$

$\\ \sf = \frac{41.14}{23}$

$\\ \sf = 1.787$

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2 years ago

Evaluate b^2 + 5a – 20

Rina8888 [55]

Answer: it cant even be factored

Step-by-step explanation:

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