3 years ago

Find the value of x for the rectangle

1 answer:

5 0

(x+3)(2x-6)=26

2x(to the second power)-18=26

2x(to the second power) -18-26=26-26

2x(to the second power)-44 = 0

x=square root of 22,x= negative square root of 22

decimal form : x = 4.69042,x= -4.69042

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strojnjashka [21]

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4 years ago

Suppose that the number of bacteria in a certain population increases according to an exponential growth model. A sample of 2600

melisa1 [442]

Answer: There is 3.994% continuous growth rate per hour.

Step-by-step explanation:

Since we have given that

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After two and a half hours,

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$y=y_0e^{rt}\\\\2873=2600e^{2.5r}\\\\\dfrac{2873}{2600}=e^{2.5r}\\\\1.105=e^{2.5r}\\\\\text{Taking log on both the sides}\\\\\ln 1.105=2.5r\\\\0.0998=2.5r\\\\r=\dfac{0.0998}{2.5}\\\\r=0.0399\times 100\\\\r=3.994\%$