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Sergio039 [100]
3 years ago
15

1. Considere as funções f e g, ambas com domínio Z, dadas por f(x) = x²- 2x e g(x) = x³-1. Associe as colunas e assinale a alter

nativa que apresenta a sequência correta: * 1 ponto Imagem sem legenda a) C, D, A, B b) A, B, D, C c) D, C, A, B d) A, C, D, B
Mathematics
1 answer:
ivolga24 [154]3 years ago
4 0

Answer:

(A)C,D,A,B

Step-by-step explanation:

f(x) = x^2- 2x\\g(x) = x^3-1

a) f(-2)

f(-2) = (-2)^2- 2(-2)\\=4-(-4)\\=4+4\\=8$ (C)

b) g(-2)

g(-2) = (-2)^3-1\\\=-8-1\\=-9 $(D)

c) f(-1)+g(3)

f(-1) = (-1)^2- 2(-1)=1+2=3\\g(3) = (3)^3-1=27-1=26\\f(-1) + g(3)=3+26\\=29$ (A)

d) f(5) : g(2)

f(5) = (5)^2- 2(5)=25-10=15\\g(2) = (2)^3-1=8-1=7\\f(5) :g(2)=15/7$ (B)

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The first time that Arnold ran for mayor in a small town, he received 5% of the votes. This year, when Arnold ran for mayor agai
sammy [17]

Answer:

20 votes

Step-by-step explanation:

You start with the percents: You always start with 100%

100-5=95

Then you multiply

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Then you subtract

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3 years ago
30+30-2 hi brainly people and I
GrogVix [38]

Answer:

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5 0
3 years ago
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The box plots below show attendance at a local movie theater and high school basketball games:
cricket20 [7]

The standard deviation is a better measure of spread for movies than it is for basketball games.

<h3>What is box- plot?</h3>

A box plot is a graphical rendition of statistical data based on the minimum, first quartile, median, third quartile, and maximum.

As, Movies is more centric to mean and not skewed on a particular side whereas basketball games is not centric to mean but is skewed right then left.

Now, Standard deviation just measures the deviation or spread with respect to mean of collected data.

So, In the movies the data is more collected. Thus standard deviation is best suited for movie data.

Now, interquartile range. IQR relies on if the data is skewed.

So, in the basketball data the standard deviation will not give the information.

Hence, the  standard deviation is a better measure of spread for movies than it is for basketball games.

Learn more about this concept here:

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5 0
2 years ago
The current population of a threatened animal species is 1.2 million, but it is declining with a half-life of 20 years. How many
Allisa [31]
Rate:\frac{1,200,000}{20}
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6 0
3 years ago
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Step2247 [10]

Answer:

No, it is 45

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5*9=45

6 0
3 years ago
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