2 years ago

Please help i begggggggggggggggg

Mathematics

1 answer:

xeze [42]2 years ago

5 0

I’m pretty sure it’s A

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Express in trigonometric form PLEASE... -6+6 sqrt. 3i

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Step-by-step explanation:

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3 years ago

PLS HELP!!! FIRST ANSWER GETS BRAINLIEST!!!

olga55 [171]

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3 years ago

Write your question here (Keep it simple and clear to get the best answer)what number is 20times table

kykrilka [37]

20×1=20
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3 years ago

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Hitman42 [59]

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Step-by-step explanation:

7 0

3 years ago

1.) Find the value of the discriminant and the the number of real solutions of

ruslelena [56]

Hi there!

When we have an equation standard form...
$a {x}^{2} + bx + c = 0$
...the formula of the discriminant is
D = b^2 - 4ac

When
D > 0 we have two real solutions
D = 0 we have one real solutions
D < 0 we don't have real solutions

1.) Find the value of the discriminant and the the number of real solutions of
x^2-8x+7=0

Plug in the values from the equation into the formula of the discriminant

$( - 8) {}^{2} - 4 \times 1 \times 7 = 64 - 28 = 36$

D > 0 and therefore we have two real solutions.

2.) Find the value of the discriminant and the number of real solutions of
2x^2+4x+2=0

Again, plug in the values from the equation into the formula of the discriminant.

${4}^{2} - 4 \times 2 \times 2 = 16 - 16 = 0$

D = 0 and therefore we have one real solution.

~ Hope this helps you.

4 0

2 years ago

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