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3 years ago

Who knows how to do this

Mathematics

2 answers:

Oksi-84 [34.3K]3 years ago

7 0

Answer:

(-1, 7)

Step-by-step explanation:

2 unites left would movie from 1 to -1.

1 unit down would move from 8 to 7.

Neporo4naja [7]3 years ago

5 0

Answer:

The answer is -1, 7

Step-by-step explanation:

I did this type of math last year

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faust18 [17]

The greatest common factor of 21 and 40 is 1

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3 years ago

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Josh has $25 and he wants to buy some movies. He picks one movie that costs $9.99 and two that cost $5.99 each.

vova2212 [387]

He should add exact since money is involved
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A

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3 years ago

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Help me pleaseeee thank you sm

Leno4ka [110]

Answer:

The answer is A) 379.9

Step-by-step explanation:

3.14(11^2)

3.14*11^2

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379.94 if rounded to the nearest tenth it would be 379.9

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3 years ago

Determine the zeroes of the polynomial

Anna71 [15]

Answer:

3,7/6

Step-by-step explanation:

$(\sqrt{x^2-4x+3} )+(\sqrt{x^{2} -9} )-(\sqrt{4x^2-14x+6} )\\=(\sqrt{x^2-x-3x+3} )+(\sqrt{(x^2-3^2})-(\sqrt{4x^2-2x-12x+6})\\ =(\sqrt{x(x-1)-3(x-1)} )+\sqrt{(x+3)(x-3)}-\sqrt{2x(2x-1)-6(2x-1)} \\=\sqrt{(x-1)(x-3)}+\sqrt{(x+3)(x-3)} -\sqrt{2(2x-1)(x-3)} \\=\sqrt{x-3} (\sqrt{x-1} +\sqrt{x+3} -\sqrt{2(2x-1)} )\\$

$\sqrt{x-3} =0~gives~x=3\\or~\sqrt{x-1} +\sqrt{x+3} -\sqrt{2(2x-1)} =0\\or~ \sqrt{x-1} +\sqrt{x+3} =\sqrt{2(2x-1)} \\squaring\\x-1+x+3+2\sqrt{x-1} \sqrt{x+3} =2(2x-1)\\2x+2+2\sqrt{(x-1)(x+3)} =4x-2\\2\sqrt{x^2-x+3x-3} =2x-4\\\sqrt{x^2+2x-3} =x-2\\again ~squaring\\x^2+2x-3=x^2-4x+4\\\\2x+4x=4+3\\6x=7\\x=\frac{7}{6}$

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3 years ago

Study time (hours)

xxTIMURxx [149]

Answer: A B and C

Step-by-step explanation:

I did the usatestprep

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3 years ago