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Lemur [1.5K]
3 years ago
13

3/4x^2+8x+20=0 factor

Mathematics
1 answer:
elena-s [515]3 years ago
6 0

\frac{3}{4}  {x}^{2}  + 8x + 20 = 0
multiplied by 4
3 {x}^{2}  + 32x + 80 = 0 \\ (3x + 20)(x + 4) = 0 \\ so \: x =  -  \frac{20}{3}  \: or \: x =  - 4
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Match each exponential function to the description of its percent rate of change. 22% growth 12% decay 2% decay 20% growth 20% d
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Then we have the following:

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y = a( 1 - 12%/100 )^x = a(0.88)^x

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3) 20% decay

y = a( 1 - 20%/100 )^x = a(0.8)^x

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y = a( 1 + 12%/100 )^x = a(1.12)^x

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4 0
3 years ago
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kotegsom [21]
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8 0
2 years ago
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Which describes the first step in solving the equation 4x - 7 = -15?
GalinKa [24]

Answer:

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Answer B.
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3 years ago
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