What is acid rain, and why is it most closely associated with the northeastern part of the United States and eastern Canada?

Analyze the zeros of f(x)=^4-3x^3-2x^2+3x-5

spayn [35]

Answer:

d.−1.4, 3.4

Explanation:

Given

$f(x) = x^4-3x^3-2x^2+3x-5$

Required

Determine the zeros

The best way to solve this is to apply the graphical method.

First, we plot the graph of: $f(x) = x^4-3x^3-2x^2+3x-5$

<em>See attachment </em>

Next, we write out all values of x when the line crosses the y-axis.

From the attached graph, the points are (approximately):

$x =-1.449$

$x = 3.449$

Option (d) is the closest to the above values.

<em>Hence, the zeros are: -1.4 and 3.4</em>

3 0

3 years ago

On a coordinate plane, 2 exponential functions are shown. f (x) = 5 Superscript x Baseline approaches y = 0 in quadrant 2 and in

kiruha [24]

Answer:

$k = -7$

Explanation:

Given

$f(x) = 5^x$ through (0,1) and (1,5)

$g(x) = 5^x + k$ through (0,-6) and (1,-2)

Required

Determine the value of k if f(x) is translated vertically down

To get the value of k, we perform the following operations.

For (0,-6) --- Substitute 0 for x and -6 for g(x) in $g(x) = 5^x + k$

$g(x) = 5^x + k$

$-6 = 5^0 + k$

$-6 = 1 + k$

$k + 1 = -6$

$k = -6 - 1$

$k = -7$

For (1,-2) --- Substitute 1 for x and -2 for g(x) in $g(x) = 5^x + k$

$g(x) = 5^x + k$

$-2 = 5^1 + k$

$-2 = 5 + k$

$k+5 = -2$

$k= -2-5$

$k = -7$

To further show that k = -7, we have the following:

$f(x) = 5^x$

When translated downward by 7 units, the function becomes

$g(x) = f(x) - 7$

Recall that: $g(x) = 5^x + k$ and $f(x) = 5^x$

So, we have:

$5^x + k = 5^x - 7$

Subtract $5^x$ from both sides

$5^x - 5^x + k = 5^x - 5^x + 7$

$k = -7$

3 0

3 years ago

Read 2 more answers

At what temperature did water freeze on Earth 1 billion years ago?

pantera1 [17]

Freezing point of the water is innate property. Therefore, I would say that the freezing point of water from 1 billion years ago would still be the same as to what temperature the water would freeze today. Thus, I choose letter D. 0°C.

7 0

3 years ago

What are some examples of enviromental problems solved by applied geography?

Sphinxa [80]

Answer:

The three environmental problems are as follows:

Climate Change

Deforestation

Water crisis

These are some of the well-known environmental problems of the world where environmental scientists are working to find the solution.

As far as climate change is concerned, the whole world is co-operating because it is not related to any country or region but related to our mother earth. Scientists are working to reduce the temperature of the earth which is a big concern of this issue and it can be done only by the reduction of the carbon emission which we release from fossil fuels burning. Scientists are working to find an alternative source of energy by which we can bypass the fossil fuels usages and make our earth clean and green.

Deforestation is one of the other concern and it can be checked by the plantation of new trees as well as by reducing our dependency on paper which we get from trees and there are other ways also that country should have to cut their pristine forest to set up industries and housing colonies and all nations have to maintain some percentage of their land as a forest.

The water crisis is also a big concern of this 21st century, It can be resolved by the use of water in a proportionate way and also by saving the groundwater for future generations. Scientists are also working in the new-technologies by which we can desalinate water from the sea.

For all this information on the environmental concern, you need to go through any environmental journal or magazine.

Explanation:

The three environmental problems are as follows:

Climate Change

Deforestation

Water crisis

These are some of the well-known environmental problems of the world where environmental scientists are working to find the solution.

As far as climate change is concerned, the whole world is co-operating because it is not related to any country or region but related to our mother earth. Scientists are working to reduce the temperature of the earth which is a big concern of this issue and it can be done only by the reduction of the carbon emission which we release from fossil fuels burning. Scientists are working to find an alternative source of energy by which we can bypass the fossil fuels usages and make our earth clean and green.

Deforestation is one of the other concern and it can be checked by the plantation of new trees as well as by reducing our dependency on paper which we get from trees and there are other ways also that country should have to cut their pristine forest to set up industries and housing colonies and all nations have to maintain some percentage of their land as a forest.

The water crisis is also a big concern of this 21st century, It can be resolved by the use of water in a proportionate way and also by saving the groundwater for future generations. Scientists are also working in the new-technologies by which we can desalinate water from the sea.

For all this information on the environmental concern, you need to go through any environmental journal or magazine.

6 0

3 years ago

Which of the following best describes the Cold War?

Natalka [10]

Answer:A)

The mutual suspicions between the Soviets and the Western democracies

cross out

Explanation:

3 0

3 years ago