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german
3 years ago
14

What is 75.4 in expanded form

Mathematics
1 answer:
Shalnov [3]3 years ago
8 0

Answer: 75.4 =

 70  

+ 5  

+   0.4

Step-by-step explanation:

Hope this helps :)

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Please help me on this now.​
alexandr1967 [171]

Answer:

the frist one is 2 the second on is 3.5 and the third one is 3 and the last on is 2.9

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3 years ago
WILL GIVE 100 POINTS
padilas [110]

(a) The explicit rule to model the sequence formed by the number of seats in each row is a_{n}=15+3n

(b) The 35th row has 120 seats

Step-by-step explanation:

The rule of the nth term of an arithmetic sequence is

a_{n}=a+(n-1)d , where

  • a is the the first term
  • d is the common difference between each two consecutive terms

∵ There are 18 seats in the 1st row

∵ There are 21 seats in the 2nd row

∵ 21 - 18 = 3

∵ The number of seats is increased by 3 with each additional row

- The number of seats in each row represents an arithmetic

   sequence because there is a common difference between

   each two consecutive rows

∴ The number of seats in each row formed an arithmetic sequence

∵ The number of seats in the first row = 18 seats

∴ a = 18

∵ The number of seats in a row continues to increase by 3 with each

   additional row

∴ d = 3

- Substitute the values of a and d in the rule of nth term

∴ a_{n}=18+(n-1)3

- Simplify the right hand side

∴ a_{n}=18+3n-3

- Add like terms

∴ a_{n}=15+3n

(a) The explicit rule to model the sequence formed by the number of seats in each row is a_{n}=15+3n

∵ There are 120 seat in a row

- Substitute a_{n} by 120 in the rule above

∴ 120 = 15 + 3n

- Subtract 15 from both sides

∴ 105 = 3n

- Divide both sides by 3

∴ n = 35

∴ The number of the row is 35

(b) The 35th row has 120 seats

Learn more:

You can learn more about the sequences in brainly.com/question/7221312

#LearnwithBrainly

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3 years ago
Every rational number is: (a) an integer (b) a real number (c) a natural number (b) a whole number​
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Answer:

Option C

A Natural Number

Step-by-step explanation:

Every rational number is natural number

<em><u>-TheUnknownScientist</u></em>

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It’s going to be C.
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A jet flew from New York to Los Angeles, a distance of 4,200 kilometers. Then it completed the return trip.
ivolga24 [154]

Answer:

the answer of this qst is A

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