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Grace [21]
3 years ago
10

5+ x2 – 7х What is the answer?

Mathematics
2 answers:
PolarNik [594]3 years ago
7 0

Answer:

-5x+5

Step-by-step explanation:

5+2x-7x

Combine like terms:

2x-7x+5\\

which is

-5x+5

Hope this helps :D

bagirrra123 [75]3 years ago
6 0

<u>My</u><u> </u><u>Answers:</u>

I think the equation you typed may have some typo error but:

  • If the problem is 5+2x-7x, then the answers would be:
  1. Factor the expression= 5(1-x)
  2. Simplify the expression= 5-5x
  • But if the expression you want to ask is 5+x⋅2-7x, the answer is:
  1. Simplify the expression= 5-5x

Hope this helps and if you could mark me as brainliest. Thanks!

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8-35. Use your knowledge of polygons to answer the questions below, if possible.
Nataliya [291]

Answer:

(a)I. 13 Sides II. 7 Sides

(b) 4 Sides, Square

(c)x=52 degrees

(d)x=107 degrees

(e)1620 degrees

Step-by-step explanation:

(a)The Sum of the Interior angle of polygon with n sides is derived using the formula: (n-2)180.

I. If the Interior angle is 1980^0

Then:

(n-2)180^0=1980^0\\$Divide both sides by 180^0 $ to isolate n$\\n-2=11\\$Add 2 to both sides of the equation\\n-2+2=11+2\\n=13

The polygon has <u>13 sides.</u>

II. If the Interior angle is 900^0

Then:

(n-2)180^0=900^0\\$Divide both sides by 180^0 $ to isolate n$\\n-2=5\\$Add 2 to both sides of the equation\\n-2+2=5+2\\n=7

The polygon has <u>7 sides.</u>

(b)The sum of the exterior angle of a polygon is 360 degrees,

Each exterior angle of a n-sided regular polygon is: \frac{360^0}{n}

If the exterior angle of a regular polygon is 90°

Then:

90\°=\frac{360^0}{n}\\ 90n=360\\n=4

The regular polygon has 4 sides and it is called a <u>Square.</u>

<u>(c)</u>The Sum of the Interior angle of polygon with n sides is derived using the formula: (n-2)180.

Each Interior angle of a regular n-sided polygon is:  \frac{(n-2)180^0}{n}

For a pentagon, n=5

Then:

\frac{(5-2)180^0}{5}=2x+4\\108=2x+4\\108-4=2x\\104=2x\\x=52^0

(d)The <u>sum of the exterior angle of a polygon is 360 degrees.</u>

If four of the exterior angles of a pentagon are 57, 74, 56, and 66.

Let the fifth angle=x

Then:

57+74+56+66+x=360^0\\253+x=360\\x=107^0

(e)The Sum of the Interior angle of polygon with n sides is derived using the formula: (n-2)180.

In an 11-gon., n=11

Therefore, the sum of the interior angle=(11-2)180=1620^0

The sum of the interior angle <u>does not change either in a regular or irregular polygon.</u>

3 0
3 years ago
What value of x makes the denominator of the function equal zero? y= 6/4x-40
Scilla [17]
Y=6/(4*10)-40
y=6/40-40
y=6/0
undefined
8 0
3 years ago
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What is 41 divided by 17 as a decimal rounded to the nearest tenth.
emmasim [6.3K]

2.4 sould be your answer sorry if u no longer need this answered

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Write the fraction in simplest from 8/10
AleksandrR [38]

Divide common factors from both numerator and denominator.

Divide 2

8/2 = 4

10/2 = 5

8/10 simplified = 4/5

hope this helps

7 0
3 years ago
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The formula for the future value V (in dollars) of an investment earning simple interest is V=p+prt, where p (in dollars) is the
Vitek1552 [10]
A) V = P + PRT
<span>     
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    P=A/(1+RT)

P = 6000 / (1 + .08 X 7)

P = 6000 / 1.56

P = $3,846.15</span>
5 0
3 years ago
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