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Oksi-84 [34.3K]
3 years ago
11

The ordered pairs (1,2),(2,4),(3,8),(4,16), and (5,32) represent a function?

Mathematics
2 answers:
kondaur [170]3 years ago
8 0
I know the first one is b.
Naddik [55]3 years ago
3 0

Answer:

1. The answer for the first question is c.

2. The answer for the second question is d.

Step-by-step explanation:

1. The idea to solve this exercise is to evaluate the given functions in the points {1,2,3,4,5} (notice that these are the x component of the ordered pairs) and then eliminate the different possibilities.

  • The option a. cannot be because 1²=1, which is different from 2 (recall the ordered pair (1,2)).
  • The option b. cannot be because 2*3=6, which is different from 8 (recall the ordered pair (3,8))
  • The option c. is the answer, notice that 2¹=2, 2²=4, 2³=8, 2⁴=16 and 2⁵=32.
  • The option cannot be, because 1+2=3, which is different from 2 (recall the pair (1,2)).

2. The idea is the same of the above.

  • The option a. cannot be because 1²=1, which is different from 16 (recall the pair (1,16)).
  • The option b. cannot be because 2+15=17, which is different from 25 (recall the pair (2,25)).
  • The option c. cannot be because 2(1+3)=8, which is different from 16 (recall the pair (1,16)).
  • By elimination this should be the correct answer. Anyway, it is no difficult to check that (1+3)²=16, (2+3)²=25, (3+3)²=36, (4+3)²=49 and (5+3)²=64.

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2 years ago
Why do you think we have more protests in modern times than in earlier time periods?
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3 years ago
Write the point-slope form of the line that passes through (-8, 2) and is perpendicular to a line with a slope of -8
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Answer:

y - 2 = (1/8)(x + 8)

Step-by-step explanation:

The slope of the given line is -8.  That means the slope of any line perpendicular to the given line will be the negative reciprocal of -8, which would be (1/8).

Then the desired equation is

y - 2 = (1/8)(x + 8)

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3 years ago
In an experiment, some diseased mice were randomly divided into two groups. One group was given an experimental drug, and one wa
damaskus [11]

Answer:

D)Yes, because the difference in the means in the actual experiment was more than two standard deviations from 0.

Step-by-step explanation:

We will test the hypothesis on the difference between means.

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Then, the difference between means is:

M_d=M_1-M_2=18.2-15.9=2.3

If the standard deviation of the differences of the sample means of the two groups was 1.1 days, the t-statistic can be calculated as:

t=\dfrac{M_d-(\mu_1-\mu_2)}{s_{M_d}}=\dfrac{2.3-(0)}{1.1}=2.09

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3 years ago
Maria es una estudiante de la seccion 7-9 que le gusta leer mucho. Actualmente lee un libro que tiene 288 paginas, silee 12 pagi
dmitriy555 [2]

Responder:

24 días

Explicación paso a paso:

Dado que:

Total de páginas = 288

Número de páginas leídas por día = 12

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Por lo tanto, a María le tomará 24 días leer el libro completo, si lee 12 páginas del libro por día.

4 0
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