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3 years ago

What are the x-intercepts of the function f(x) = –2x2 – 3x + 20?

Mathematics

1 answer:

lesya [120]3 years ago

5 0

Answer:

F27

Step-by-step explanation:

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liubo4ka [24]

Answer:

Step-by-step explanation:

The square indicates that the total angle is 90 degrees so

d+59=90

d=90-59

d=31 degrees

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2 years ago

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Natasha2012 [34]

Answer:

Step-by-step explanation:

area of triangle = 1/2*base*height

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2 years ago

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miv72 [106K]

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2 years ago

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erastovalidia [21]

Answer:

Step-by-step explanation:

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2 years ago

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Simplify: log base 3 (1/3) ...?

yarga [219]

The answer is 1.

$log_3( \frac{1}{3} )$
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Since $log_y(x) = \frac{log_{10}(x)}{log_{10}(y)}$ , then: $log_3( \frac{1}{3} )= \frac{log_{10} ( \frac{1}{3}) }{log_{10}(3)}$
_____
Since $\frac{1}{x} = x^{-1}$ , then: $\frac{log_{10} ( \frac{1}{3}) }{log_{10}(3)} = \frac{log_{10}(3^{-1} )}{log_{10}(3)}$
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Since $log x^{a} =a*logx$ , then: $\frac{log_{10}(3^{-1} )}{log_{10}(3)}= \frac{-1*log_{10}(3)}{log_{10}(3)}$

From here: $\frac{-1*log_{10}(3)}{log_{10}(3)}=-1*\frac{log_{10}(3)}{log_{10}(3)}=-1*1 = -1$

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2 years ago