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3 years ago

9

The temperture was -10 Fahrenheit and dropped by 16 Fahrenheit. which statement represnts the resulting temperture in degrees fa

hrenheit?

1 answer:

Makovka662 [10]3 years ago

3 0

-10 degrees- 16 degrees=-26 degrees

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

BabaBlast [244]

Answer:

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Step-by-step explanation:

$x^{2} -8x+14=2x-7$

$x^{2} -8x-2x+14+7=0$

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

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

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

positive

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

$x=7$

negative

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

$x=3$

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Really need help on this , thanks so much! (:

Mazyrski [523]

-2y>12x-42
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so a is true

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Use the vertex formula to find the vertex of the quadratic function f(x) = -x2 + 4x - 8.

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The answer is c. Since she has three balls and she is going to chose one is will be 1/3
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