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zmey [24]
3 years ago
7

F(x) = −16(x − 4) + 255 What is the value of f(x) when x = 5?

Mathematics
1 answer:
kobusy [5.1K]3 years ago
4 0
Replace the x's values in the equation with 5.

f(5)= -16(x-4) + 225
= -16(1) + 225
= -16 + 225
= 209

The Answer is 209
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A huge ice glacier in the Himalayas initially covered an area of 454545 square kilometers. Because of changing weather patterns,
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We have been given that a huge ice glacier in the Himalayas initially covered an area of 45 square kilo-meters. The relationship between A, the area of the glacier in square kilo-meters, and t, the number of years the glacier has been melting, is modeled by the equation A=45e^{-0.05t}.

To find the time it will take for the area of the glacier to decrease to 15 square kilo-meters, we will equate A=15 and solve for t as:

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Let us take natural log on both sides of equation.

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Using natural log property \text{ln}(a^b)=b\cdot \text{ln}(a), we will get:

-0.05t\cdot \text{ln}(e)=\text{ln}(\frac{1}{3})

-0.05t\cdot (1)=\text{ln}(\frac{1}{3})

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t=\frac{\text{ln}(\frac{1}{3})}{-0.05}

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t=20\text{ln}(3)

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Step-by-step explanation:

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