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natka813 [3]
3 years ago
10

Please HELP!!!!!!!!!

Mathematics
1 answer:
DaniilM [7]3 years ago
8 0

1.

Calculate the sum

5x - 10 + 7 = 65 - 20x + 32

Move terms

5x - 3 = 97 - 20x

Collect the like terms and calculate

5x + 20x = 97 +3

Divide both sides by 25

25x = 100

X= 4 ANSWER

I skipped some steps because it would be too long :/

2.

Multiply parenthesis by 8

20x>8(4x - 5) -20

Calculate

20x>32x - 40 - 20

Move variable to the left

20x>32x-60

Collect like terms

20x - 32x > -60

Divide both sides by -12

-12x>-60

X<5 ANSWER

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If one root is the square of the other in the equation 8+mx+27x²=0,find the value of m​
aleksklad [387]

Answer:

The value of m is -30.

Step-by-step explanation:

Let 27\cdot x^{2}+m\cdot x +8 = 0, we notice that expression is a second order polynomials. We can rearrange the polynomial and use factorization to calculate all roots:

x^{2}+\frac{m}{27}\cdot x + \frac{8}{27} = 0 (1)

-x^{2}-x = \frac{m}{27} (2)

x^{3} = \frac{8}{27} (3)

From (3) we find the least root:

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3 0
3 years ago
If the side lengths of a polygon are: 4x, 6x, 12, and 18 what is the value of x if the perimeter is 118?
Sonja [21]

The value of x for given polynomial is 8.8.

<h3>What is Polygon?</h3>

The definition of a polygon is given as a closed two-dimensional figure with three or more straight lines.

Here, the length of sides of given Polygon are:

    4x, 6x, 12, 18

Perimeter of polygon = 118 units.

We know that,

Perimeter of polygon = Sum of all sides

                             118 = 4x + 6x + 12 + 18

                             118 = 10x + 30

                             118 - 30 = 10x

                               10x = 88

                               x = 88/10

                               x = 8.8

Thus, the value of x for given polygon is 8.8.

Learn more about Polygon from:

brainly.com/question/17756657

#SPJ1

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2 years ago
GEOMETRY
yawa3891 [41]

Answer:

ASA, ASA, SAS, SSS

Step-by-step explanation:

i think this is it

8 0
2 years ago
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