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4 years ago

13

Yo i need help with 1,000,000 + - 3,000,000

2 answers:

Arada [10]4 years ago

6 0

Answer: -2,000,000

Step-by-step explanation:

Think of it as -3,000,000 + 1,000,000

Rus_ich [418]4 years ago

3 0

Answer:

The answer is -2,000,000.

Step-by-step explanation:

Do 3,000,000 - 1,000,000

and then add the negative sign to the answer which is 2,000,000.

It becomes -2,000,000

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The answer would be A . 7/5

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3 years ago

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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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$\frac{15}{45}=\frac{45e^{-0.05t}}{45}$

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Now we will switch sides:

$e^{-0.05t}=\frac{1}{3}$

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:

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

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

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

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

$t=\frac{\text{ln}(\frac{1}{3})\cdot 100}{-0.05\cdot 100}$

$t=\frac{\text{ln}(\frac{1}{3})\cdot 100}{-5}$

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3 years ago

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Step-by-step explanation:

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3 years ago

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Answer:

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