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Sonbull [250]
3 years ago
14

If || m, find the value of x. (8r + 20) (11 x - 31)

Mathematics
1 answer:
kakasveta [241]3 years ago
3 0

Answer:

31/11

or

2 9/11

<h2><u><em>Could I please have BRAINLIEST?</em></u></h2>

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Help and fast
kolbaska11 [484]

Answer:

3 cm base, 6 cm height

Step-by-step explanation:

base is already labeled and the height is as well

3 0
4 years ago
Read 2 more answers
Find the solutions of this system of equations 10x-5y=-20 7x-5y=-26
OverLord2011 [107]

Answer:

i think $25.00

Step-by-step explanation:


8 0
3 years ago
Find all geometric sequences such that the sum of the first two terms is 24 and the sum of the first three terms is 26.
Serga [27]

Answer:

<h3>The nth term Tn = -8(-1/4)^(n-1) or Tn = 6(1/3)^(n-1) can be used to find all geometric sequences</h3>

Step-by-step explanation:

Let the first three terms be a/r, a, ar... where a is the first term and r is the common ratio of the geometric sequence.

If the sum of the first two term is 24, then a/r + a = 24...(1)

and the sum of the first three terms is 26.. then a/r+a+ar = 26...(2)

Substtituting equation 1 into 2 we have;

24+ar = 26

ar = 2

a = 2/r ...(3)

Substituting a = 2/r into equation 1 will give;

(2/r))/r+2/r = 24

2/r²+2/r = 24

(2+2r)/r² = 24

2+2r = 24r²

1+r = 12r²

12r²-r-1 = 0

12r²-4r+3r -1 = 0

4r(3r-1)+1(3r-1) = 0

(4r+1)(3r-1) = 0

r = -1/4 0r 1/3

Since a= 2/r then a = 2/(-1/4)or  a = 2/(1/3)

a = -8 or 6

All the geometric sequence can be found by simply knowing the formula for heir nth term. nth term of  a geometric sequence is expressed as

if r = -1/4 and a = -8

Tn = -8(-1/4)^(n-1)

if r = 1/3 and a = 6

Tn = 6(1/3)^(n-1)

The nth term of the sequence above can be used to find all the geometric sequence where n is the number of terms

6 0
3 years ago
Issac wants to save up some money to buy a new smartphone, so he babysits on the weekends. there is a proportional relationship
Darina [25.2K]
I will tell you the answer if you put brainliet
6 0
2 years ago
2(x + 14) = 40
evablogger [386]

Given:

The equation is

2(x+14)=40

To find:

The solution of the given equation.

Solution:

We have,

2(x+14)=40

Using distributive property, we get

2(x)+2(14)=40

2x+28=40

Subtracting 28 from both sides.

2x=40-28

2x=12

On dividing both sides by 2, we get

x=6

Therefore, the solution of the given equation is x = 6.

4 0
3 years ago
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