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rosijanka [135]

2 years ago

6

A submarine submerges from the surface of the sea at the rate of 10 m/min. How long will it take to reach 300 m below the sea le

vel

1 answer:

Pavlova-9 [17]2 years ago

5 0

Answer:

answer is 300m/30min

Step-by-step explanation:

300\10=30

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Solve<br> x2 - 8x + 14 = 2x - 7

BabaBlast [244]

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Step-by-step explanation:

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$x^{2} -10x+21=0$

$\mathrm{For\:a\:quadratic\:equation\:of\:the\:form\:}ax^2+bx+c=0\mathrm{\:the\:solutions\:are\:}$

$x=$ $\frac{-b\pm \sqrt{b^2-4ac}}{2a}$

positive

$x=\frac{-\left(-10\right)+\sqrt{\left(-10\right)^2-4\cdot \:1\cdot \:21}}{2\cdot \:1}$

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negative

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7 0

3 years ago