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Ede4ka [16]
3 years ago
5

1. Expand and simplify the following brackets: a) 2ab(3b-5) b) 4ab(2a4b + 8b)

Mathematics
1 answer:
Nikolay [14]3 years ago
6 0

Answer:

Step-by-step explanation:

a) 2ab(3b-5)

6ab^{2} - 10ab

b) 4ab(2a4b + 8b)

32a^{2} b^{2} + 32ab^{2}

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A town has a population of 14000 and grows at 2.5% every year. What will be the population after 5 years, to the nearest whole n
Lyrx [107]
This is exponential growth.  Use the formula P = 14000 (1+0.025)^5.

Note that (1+0.025)^5 = 1.025^5 = 1.131.  Mult. the given population, 14000, by this factor to find the answer.  Then round off your answer to the nearest whole number.

4 0
3 years ago
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8 + (-10) just confused lol
grin007 [14]
8+(-10) is like 10-8 except backwards so how i do some problems is like that and then add a negative sign; so say if i were doing 8+(-10), i would do 10-8 which equals 2 and then since 10 is bigger than 8 and it’s a negative number, i would put -2 as my answer
5 0
3 years ago
three consecutive integers can be represented by n, n+1 and n+2. if the sum of three consecutive integers is 57 what are the int
Paul [167]

18,19 and 20 are the integers.

Step-by-step explanation:

Given three integers are;

n, n+1, n+2

According to given statement;

n+(n+1)+(n+2)=57

n+n+1+n+2=57\\3n+3=57\\3n=57-3\\3n=54\\Dividing\ both\ sides\ by\ 3\\\frac{3n}{3}=\frac{54}{3}\\n=18

n=18

n+1 = 18+1 = 19

n+2 = 18+2 = 20

18,19 and 20 are the integers.

Keywords: Integers, Addition

Learn more about addition at:

  • brainly.com/question/2860697
  • brainly.com/question/2977815

#LearnwithBrainly

6 0
3 years ago
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poizon [28]

Answer:

15.4

Step-by-step explanation:

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Sholpan [36]

Answer:

B

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2(x+2y)=2x+4y

2x+4y

So option B is the correct answer

6 0
3 years ago
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