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Nady [450]
3 years ago
13

5n + 34 = -2(1-7n) n= ill mark brainliest and 20 points

Mathematics
2 answers:
mash [69]3 years ago
6 0

Answer:

n=4

Step-by-step explanation:

Expand  −2(1−7n):    −2+14n

5n+34=−2+14n

Subtract 34 from both sides

5n+34−34=−2+14n−34

Simplify

5n=14n−36

Subtract 14n from both sides

5n−14n=14n−36−14n

Simplify

−9n=−36

Divide both sides by −9

−9n

−9 =

−36

−9

Simplify

n=4​

Arturiano [62]3 years ago
5 0
The answer is n = 4

5n + 34 = -2 ( 1 - 7n )

You first need to the the parentheses which is -2(1) = -2 and -2(-7) = 14 it’s positive 14 because a negative times a negative it’s positive. So it would be:

5n + 34 = -2 + 14n

You want to have variables on one side so you can take away 14 from the 5 or 5 from the 14

5n + 34 = -2 + 14n
-14n. -14n

Which would equal:

-9n + 34 = -2

Then you need to subtract 34 from both sides.

-9n + 34 = -2
-34. -34

When done your answer should be:

-9n = -36

Then you divide both sides by -9 which would give you n = 4




There is this app called “Photomath” which helps with this type of problems.

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poizon [28]

'A' is the square root of 25. That's 5, so take A=5 with you
as you go to the next step.

B is A³.   A³ means (A x A x A).  We know that 'A' is 5, so 'B' is (5x 5 x 5) = 125 .
Take B=125 with you to the next step.

'C' is  B - 25.  We know that  'B'  is 125.  So  C = (125 - 25) = 100 .
Take  C=100  with you to the next step.

'D' is the square root of  'C'.  We know that C=100, so  D = √100 .
The square root of 100 is 10, so  D=10.
Take  D=10  with you to the next step .

'E' is  D+39.  We know that  D=10.  So  E=(10+39) = 49 .
Take  E=49 with you to the last step.

'F' is the square root of 'E'.  We know that E=49.


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3 years ago
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Andru [333]

Answer:

The tree is 28 feet tall.

Step-by-step explanation:

It is given that:

Height of flag pole = 8 feet

Shadow of flag pole = 6 feet

Ratio of height to shadow = 8 : 6

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Height of nearby tree = x

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Product of means = Product of extremes

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Dividing both sides by 6

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Therefore,

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The characteristics of the polynomial can be derived from algebraic techniques. Roots and multiplicity can be found by <em>factoring</em> the polynomial. The multiplicity is represented by a power binomial of the form:

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Now we proceed to factor the formula:

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We kindly invite to see this question on polynomials: brainly.com/question/1218505

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Step-by-step explanation:

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