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Kobotan [32]
3 years ago
6

Helpppppppp pleaseeeee

Mathematics
1 answer:
lakkis [162]3 years ago
3 0

Answer:

108 cm^2

Step-by-step explanation:

A= 1/2 b×h

so

1/2 12×18

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3 years ago
Please help
lubasha [3.4K]

Let us check series : -10 /-2 = 5 -50/-10 = 5

so it is a geometric series with a= -2 and r= 5

sum formula for n terms of geometric series = a ( r^n -1 ) /( r-1)

here we find S5 that is n= 5 = -2 ( 5^ 5 - 1) /( 5-1)

= -2 ( 3125 -1) / 4 = -1562

second series is : 1.5/1 = 1.5 2.25/1.5 = 1.5

this is also geometric series but n = 12 a= 1 and r= 1.5

we use same formula

S12 = 1 ( (1.5) ^12 -1) /( 1.5-1) =

128.74 / 0.5 = 257.49

Last is 2/1= 2 4/2 = 2 8/4 = 2 so r = 2 a = 1 and n = 12

we use same formula 1 ( 2^12 - 1) / (2-1)

= 4095

Answers : -1562 , 257.49 , 4095

8 0
3 years ago
Read 2 more answers
Help ! Compare these two functions. Which has the greater rate of change?
ololo11 [35]

Answer:

We know this is a tough job. What we want is so intimate that no one can write it for you.

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2 years ago
Solve $16x+9=9y-2x$ for $y$ .
s344n2d4d5 [400]

Answer:

The solution for y is y = 2x + 1

Step-by-step explanation:

* <em>Lets explain how to solve an equation for one of the variables</em>

- We need to solve the equation 16x + 9 = 9y - 2 x for y

- That means we want to find y in terms of x and the numerical term

- the equation has two sides, one side contains x and numerical term

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* <em>Lets do that</em>

∵ 16x + 9 = 9y - 2x

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3 0
2 years ago
Multiply and simplify: 3a(4a2 – 5a + 12) 7a3 – 2a2 + 15a 12a3 – 15a2 + 36a 12a2 – 15a + 36 7a2 – 2a + 15
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