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ahrayia [7]
3 years ago
7

WILL GIVE BRAINLIEST PLEASE HELP ASAP

Mathematics
1 answer:
BigorU [14]3 years ago
4 0

Answer:

x= -5

Step-by-step explanation:

its kinda complex, i don't know if my answer is right but i think it has to do with propertions

if its right can i have brainliest

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What is the constant term in the expansion of the binomial (2x + 3)^3
Levart [38]
For (a+b)^3 is:

1a^3+3a^2b+3ab^2+1b^3

8x^2+36x^2+54x+27

So the constant term is b^3=3^3=27
8 0
3 years ago
A new shopping mall records 120 total shoppers on their first day of business. Each day after that, the
KiRa [710]

\boldsymbol{\mathbf{Answer}}

\boldsymbol{\mathbf{213\,shoppers\, will\, visit\,on \, first\, seventh\, day}}

\boldsymbol{\mathbf{Step-by-step explanation}}

Let, No of shoppers on first day = a

No of shoppers on second day = b

Similarly till seventh day,

Therfore shoppers on seventh day=

a + b + c + d + e + f + g

As mentioned ,number of shoppers is 10% more than the number of shoppers the day before. i.e we can understand that a to g all are 1.1 times bigger than the previous letter.

That means all are in geometric series.

We know the formula for sum of geometric series is,

=\boldsymbol{\mathbf{\sum {a}\times{r^{(n-1)}}}}

\boldsymbol{\mathbf{a \, is\, first\, value}}

\boldsymbol{\mathbf{r \, is\, multiplication\, factor\, value}}

\boldsymbol{\mathbf{n \, is\, no\, items\, in\, series}}

That is,

a = 120

r = 1.1

n = 7

=\sum {120}\times{1.1^{(7-1)}}

={120}\times{1.7715}  

= 212.58

Approximately

\boldsymbol{\mathbf{=\, 213 \,shoppers \,will\, be \,there\, on \,seventh \,day.}}

6 0
3 years ago
The ratio of boys to girls in a computer class is 5:3. There are 27 girls in the class. How many boys are in the class
Flauer [41]
5 : 3  = 45 : 27

3/5 = 27/?
3 × 9 = 27   5 <span>× 9 = 45
5 : 3 = 45 : 27

45 boys</span>
8 0
3 years ago
In Jaden’s garden, there is a triangular patch of grass. He wants to plant a geranium in the patch at a point equidistant from a
True [87]
<span>in the center of the circumscribed circle of the triangle</span>
7 0
3 years ago
Read 2 more answers
Rhian sat a maths test and an english test
noname [10]

Answer:

i don't understand

Step-by-step explanation:

please give more info so I can answer you question

4 0
3 years ago
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