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Ugo [173]
3 years ago
12

Help...........................plz

Mathematics
2 answers:
denis-greek [22]3 years ago
8 0

Answer:

something called a calculator but if u want explanation here it is

Step-by-step explanation:

2 1/2 can also be represented as 5/2 and when we open the parenthesees we get 5/2 (divided by) -10. we recipricol the -10 into -1/10 and then u multiply 5/2 and -1/10 which equeals  -1/4

Diano4ka-milaya [45]3 years ago
4 0

Answer: (-1/4)

Step-by-step explanation:

This divides to -1/4

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Which of the following characteristics of the set {(0 , 8), (8 , 0), (1 , 6), (6 , 1), (2 , 4), (4 , 2)} make it a function?
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Answer:

C

Step-by-step explanation:

For a relation to be a function, the ordered pairs do not repeat any of the x values.  This is Answer C.

6 0
3 years ago
A thin tube stretched across a street counts the number of pairs of wheels that pass over it. A vehicle classified as type A wit
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Answer: All possible solutions would be

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Step-by-step explanation:

Let the number of vehicle of type A be 'x'.

Let the number of vehicle of type B be 'y'.

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So, all possible solutions would be

(1,41), (8,33), (15,25), (22,17), (29,9), (36,1)

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svet-max [94.6K]

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Step-by-step explanation:

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Answer:

Q1

<u>The exponential growth model for frogs:</u>

  • F(x) = 100(1.22)ˣ,

F- number of frogs, x- number of years, 1.22 - growth factor

<u>Calculations</u>:

  • F(5) = 100(1.22)⁵ = 270
  • a) F(10) = 100(1.22)¹⁰ = 730
  • b) F(20) = 100(1.22)²⁰ = 5335  

<em>All numbers rounded </em>

Q2

<u>The exponential growth model for bacteria:</u>

  • B(x) = 10(1.8)ˣ

B- number of bacteria, x- number of hours, 1.8 - growth factor

<u>Calculations:</u>

  • a) B(5) = 10(1.8)⁵ = 189
  • b) B(24) = 10(1.8)²⁴ = 13382588
  • c) B(168) = 10(1.8)¹⁶⁸ = 7.68 * 10⁴³

<em>All numbers rounded </em>

Q3.

<u>The exponential growth model for fish:</u>

  • F(x) = 821(1.02)ˣ,

F- number of fish, x- number of months, 1.02 - growth factor

<u>Calculations:</u>

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  • b) F(120) = 821(1.02)¹²⁰ = 8838

<em>All numbers rounded </em>

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3 years ago
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