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frez [133]
3 years ago
8

The triangles are similar by the AA Similarity Postulate. Find the value of x.

Mathematics
2 answers:
cricket20 [7]3 years ago
3 0
Line x is the midsegment of the triangle.

5/2= 2.5

I hope this helps!
~kaikers
CaHeK987 [17]3 years ago
3 0

Answer: 2.5

Step-by-step explanation:

Given: The triangles in the picture are similar by the AA Similarity Postulate.

We know that is two triangles are similar triangles then its corresponding sides are proportional [Larger side is proportional to larger side of another triangle or vise versa].

\Rightarrow\frac{x}{5}=\frac{3}{3+3}\\\\\Rightarrow\frac{x}{5}=\frac{3}{6}\\\\\Rightarrow x=\frac{1}{2}\times5\\\\\Rightarrow x=2.5

Hence, the value of x is 2.5 .

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maria [59]

Answer:

69.08

Step-by-step explanation:

3 0
3 years ago
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Six more than nine times a number is 456
vladimir1956 [14]

Answer:

x=50

Step-by-step explanation:

1) Rewrite the problem as an equation: (x will be "a number")

9x+6=456

2) Subtract 6 from both sides:

9x=450

3) Divide both sides by 9:

x=50

5 0
3 years ago
Marcus sorts his 85 baseball cards into stacks of nine cards each how many stacks of nine cards can Marcus make?
SCORPION-xisa [38]

Answer:A

Step-by-step explanation:

8 0
3 years ago
What is the slope of the line described by the data in the table below?
bezimeni [28]

Given:

The table of values is:

x      y

-4     3

0     8

4     13

8     18

To find:

The slope of the line that described by the data in the table.

Solution:

Consider any two points from the given table.

Let the two points are (0,8) and (4,13). So, the slope of the line is

m=\dfrac{y_2-y_1}{x_2-x_1}

m=\dfrac{13-8}{4-0}

m=\dfrac{5}{4}

m=1.25

Therefore, the slope of the line described by the data in the table is 1.25.

6 0
3 years ago
Use Newton's method to find the second and third approximation of a root of x3+x+2=0 starting with x1=−1 as the initial approxim
adoni [48]

Answer:

The third approximation is x_3=-1.08259

Step-by-step explanation:

We are given that  

f(x)=x^3+x+2=0

x_1=-2

We have to find the second and third approximation of a root of given equation by using Newton's method.

We know that Newton's method , if nth approximation is given x_n and f'(x_n)\neq 0 then, the next approximation is given by  

x_{n+1}=x_n-\frac{f(x_n)}{f'(x_n)}

f'(x)=3x^2+1

Substitute x_1=-2

f(x_1)=f(-2)=(-2)^3+(-2)+2=-8

f'(x_1)=f'(-2)=3(-2)^2+1=13

Substitute the value n=1 then, we get  

x_2=x_1-\frac{f(x_1)}{f'(x_1)}

Substitute the values then , we get  the second approximation

x_2=-2-\frac{-8}{13}=-\frac{18}{13}

For n=2

f(x_2)=f(-\frac{18}{13})=(-\frac{18}{13})^3-\frac{18}{13}+2=-2.03914

f'(x_2)=f'(-\frac{18}{13})=3(-\frac{18}{13})^2+1=6.75148

x_3=x_2-\frac{f(x_2)}{f'(x_2)}

x_3=-\frac{18}{13}-\frac{-2.03914}{6.75148}=-1.08259

Hence, the third approximation is x_3=-1.08259

7 0
3 years ago
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