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vlada-n [284]
3 years ago
7

given that negative 9i is a 0, factor the following polynomial completely. f(x)=x^4+6x^3+86x^2+486x+405

Mathematics
1 answer:
kkurt [141]3 years ago
6 0
Ok so the answer is 1,085
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Suppose that the populations of the United States and China both increase by 12 million people in one year. What would be the re
Jlenok [28]

Question:

Suppose that the populations of the United States and China both increase by 12 million people in one year. What would be the relative change for each country? Answer to the nearest tenth of a percent (1 decimal place). Make sure that you fill in each answer area before checking "How Did I Do?".

If you assume that the U.S. population is about 300 million, an increase of 12 million would result in a relative change of Number %.

If you assume that China has about 1 billion people, an increase of 12 million would result in a relative change of Number %.

Answer:

The relative change of the United States and China is 4% and 1.2%, respectively.

Step-by-step explanation:

Given

Represent population with p. So, we have:

United States

\triangle p = 12\ million

p_1 =300\ million

China

\triangle p = 12\ million

p_1 =1\ billion

Required

Determine the relative change for each country

Relative change, C is calculated as:

C = \frac{\triangle p}{p} * 100\%

For United States

C = \frac{12\ million}{300\ million} * 100\%

C = \frac{12}{300} * 100\%

C = \frac{12 * 100}{300}\%

C = \frac{1200}{300}\%

C = 4\%

For China

C = \frac{12\ million}{1\ billion} * 100\%

C = \frac{12}{1000} * 100\%

C = \frac{12* 100}{1000} \%

C = \frac{1200}{1000} \%

C = 1.2\%

The relative change of the United States and China is 4% and 1.2%, respectively.

3 0
3 years ago
Walter is fencing in his backyard for every 20 fence boards he needs 3 metal posts how many metal posts will he need for 300 fen
laila [671]

Answer:

15 metal post

Step-by-step explanation:

all you have to do is divide 20 into 300

4 0
3 years ago
What is the solution to the system of equations graphed below
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The point where the lines intersect is the point that satisfies both equations.

It is (1, 5), selection C.
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3 years ago
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A box contains eight cards labeled P, Q, R, S, T, U, V, and W. One card will be randomly chosen.
Varvara68 [4.7K]

Answer:

7/8

Step-by-step explanation:

Probability= (Cards having letter Q to W)/(All cards) = 7/8

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3 years ago
Write a real world problem for 5n+8=43
lianna [129]

5n=43-8

5n=35

n=7

This is 7

8 0
3 years ago
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