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kipiarov [429]
3 years ago
5

Can someone please solve this with steps

Mathematics
1 answer:
EastWind [94]3 years ago
6 0

(x+10)+(3x-5)+x=5x+5

5x-5=180

+5 +5

5x=185

185/5=37

37=x

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Explain the
Ivenika [448]

Answer:

a2=12 (the second term of the sequence is 12)

Step-by-step explanation:

a5=324

If the term to term rule is multiply by any number, we deal with geometrical sequence

The formula you should use is an= a1*r^(n-1)  where n is the number of the term which we know. In our case we know

a5, so use 5 instead of n

Then you have a5=a1*r^4 where r is the number 3 (because each next term is greater than previous in 3 times)

a5=324

324= a1*3^4

324=a1*81

a1=4 (We find the first term of sequence, because having it you can easily search for every term )

Return to the formula an= a1*r^n-1

Now search for the second term using 2 instead of n in the formula

a2= a1*r^1

a2=a1*r, a1=4, r=3

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3 years ago
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Tema [17]

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Step-by-step explanation:

Solve for x:

(x - 9) (x + 7) = 25

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x^2 - 2 x - 63 = 25

Add 63 to both sides:

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x^2 - 2 x + 1 = 89

Write the left hand side as a square:

(x - 1)^2 = 89

Take the square root of both sides:

x - 1 = sqrt(89) or x - 1 = -sqrt(89)

Add 1 to both sides:

x = 1 + sqrt(89) or x - 1 = -sqrt(89)

Add 1 to both sides:

Answer: x = 1 + sqrt(89) or x = 1 - sqrt(89)

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Answer:

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olganol [36]

Answer:

6 3/8

Step-by-step explanation:

1.5x4.25=6.375=51/8= 6 3/8

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2 years ago
PLEASE HELP I WILL MARK BRAINLIEST
worty [1.4K]
The answer would be 7 inches i believe?..
6 0
3 years ago
Read 2 more answers
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