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Bad White [126]
3 years ago
8

Please help and show work​

Mathematics
1 answer:
weqwewe [10]3 years ago
7 0

Because corresponding parts in a similar polygon is in proportion, 18/12=x/5

12x=90

4x=30

2x=15

x=15/2

Done!

If you have any more questions about this problem just comment and I will answer it for you, also I would really really appreciate it if you give me brainlliest!

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Complete the factorization of 3x ^ 2 - 10x + 8 3x^ 2 -10x+8=(x- Box x-4)
aniked [119]

Answer:

3x^2-10x+8=(x-x_1)(x-x_2)=(x-2)(x-\frac{4}{3})

Step-by-step explanation:

The general form of a quadratic polynomial is given by:

ax^2+bx+c    (1)

You have the following polynomial:

3x^2-10x+8    (2)

In order to complete the factorization you can use the quadratic formula, to obtain the roost of the polynomial. The quadratic formula is given by:

x_{1,2}=\frac{-b\pm \sqrt{b^2-4ac}}{2a}    (3)

By comparing the equation (1) with the equation (2) you obtain:

a = 3

b = -10

c = 8

Then, you replace these values in the equation (3):

x_{1,2}=\frac{-(-10)\pm \sqrt{(-10)^2-4(3)(8)}}{2(3)}\\\\x_{1,2}=\frac{10\pm2}{6}\\\\x_1=2\\\\x_2=\frac{4}{3}

Then, the factorization of the polynomial is:

3x^2-10x+8=(x-x_1)(x-x_2)=(x-2)(x-\frac{4}{3})

5 0
3 years ago
Given:m<6=m<8b l l cprove:a l l b
makvit [3.9K]

1) From the data, we can see that

\angle6=\angle8

is given.

2) Next,

\angle6=\angle7

since they are alternate angles.

3) By substitution, these means that

\angle7=\angle8

4) Finally, a || b since

\angle7=\angle8

this is because, angle 7 and angle 8 are corresponding angles.

Corresponding angles are angles that are on the same corner at each intersection. For instance, 2 and 6

4 and 8, 1 and 5, 3 and 7

In our case, 7 and 8 are corresponding angles

5 0
11 months ago
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lesya692 [45]

Answer:

because it easily displays all of the info

7 0
3 years ago
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What is the equation of the line that is perpendicular to the given line and passes through the point (5,3)?
MrRissso [65]
4x-5y=5 is the answer i got
3 0
3 years ago
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What is the slope of a line passing through (5, 9) and (7, 15)?
LenaWriter [7]
Slope = change in y / change in x
 
          = (15 - 9) / (7 - 5)
 
          =   6 / 2
    
          = 3   

6 0
3 years ago
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