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Karolina [17]
3 years ago
15

How can you write repeating decimals as fractions

Mathematics
2 answers:
Ghella [55]3 years ago
6 0
By using 9 in the equation
Oduvanchick [21]3 years ago
5 0

Answer:

write the repeating number with 9 in the denominator

Step-by-step explanation:

Just write the repeating number over 9

i.e.

  • 0.11111111... = 1/9
  • 7.22222222... = 7 2/9 or 65/9
  • 1234.555555... = 1234 5/9 or 11111/9
  • etc.
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A triangle ABC with vertices A (1, 5), B (5, 2), and C (-1, 2) is rotated 90º . What are the coordinates of C'?
pshichka [43]
The answer is (-2,-1), by the formula:
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3 years ago
In ideal conditions, 200 colony-forming units (cfu) of E. coli can grow to 400 cfu in 20 minutes, to 800 cfu in 40 minutes, and
kvasek [131]

Answer:

(a)Yes, it is an exponential function.

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Step-by-step explanation:

(a)A population grows exponentially if it increases by a common ratio(called the growth ratio). We can see from the given information that the population of E.coli doubles every 20 minutes, therefore it is an exponential growth with a growth ratio of 2.

(b)The population, P(t) at any time t of an initial population, P_o  with a growth ratio of r over a period k can be modeled using the function:

P(t)=P_o\cdot r^{t/k}

In this Case:

P_o=200

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3 0
4 years ago
9w-4w+6&lt;1+5w supposed to combine like terms
Mariana [72]

Answer/Step-by-step explanation:

Given:

9w - 4w + 6 < 1 + 5w

To solve, collect like terms.

Subtract 5w from both sides

9w - 4w + 6 - 5w < 1 + 5w - 5w

9w - 4w - 5w + 6 < 1

6 < 1 (incorrect)

The inequality given has no solution or an information is missing.

6 0
3 years ago
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egoroff_w [7]

Answer:

C:7

Step-by-step explanation:

Complementary is what else to add to equal 90 degrees. 10 is complementary to 80 because 80+10=90. Supplementary is what would equal to 180. Complementary is usually used in an right angle and supplementary in a line.

8 0
4 years ago
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