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djverab [1.8K]
3 years ago
9

HELP ASAP PLSS 10 POINTS

Mathematics
2 answers:
iren2701 [21]3 years ago
8 0

Answer:

It's the last one, 2.5

Step-by-step explanation:

Monica [59]3 years ago
5 0
The scale factor is 2.5



let me know if you have any ?s
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The image of (6, 9) under a dilation is (4, 6).
Ad libitum [116K]
For this case we have the following ordered pairs:
 (6, 9)
 (4, 6)
 The scale factor can be found in two different ways:
 k = 6/4 = 3/2 = 1.5

k = 9/6 = 3/2 = 1.5
 Therefore, the scale factor is given by:
 k = 1.5

 Answer:
 
The scale factor of the dilation is 1.5
8 0
3 years ago
Read 2 more answers
Which of the following is the number of sides for a regular polygon that will not form a regular tessellation?
trasher [3.6K]

Answer with explanation:

A regular polygon is simple closed geometrical shape, only made up of line segments.

And Regular Tessellation, is geometrical shape, made up of regular polygons having, 3 ,or 4 or 6 sides.

It is combination of, only single kind of polygon,either, polygon having 3 sides, or ,4 sides or 6 sides.

→Regular polygon having 3 sides is Called Equilateral Triangle.

→Regular polygon having 4 sides is Called Square.

→Regular polygon having 6 sides is Called Regular Hexagon.

⇒Regular polygon having , 8 sides will not form a regular tessellation.

Option D

6 0
3 years ago
. If α and β are the roots of
Lostsunrise [7]

Answer:

18x^2+85x+18 = 0

Step-by-step explanation:

<u><em>Given Equation is </em></u>

=> 2x^2+7x-9=0

Comparing it with ax^2+bx+c = 0, we get

=> a = 2, b = 7 and c = -9

So,

Sum of roots = α+β = -\frac{b}{a}

α+β = -7/2

Product of roots = αβ = c/a

αβ = -9/2

<em>Now, Finding the equation whose roots are:</em>

α/β ,β/α

Sum of Roots = \frac{\alpha }{\beta } + \frac{\beta }{\alpha }

Sum of Roots = \frac{\alpha^2+\beta^2  }{\alpha \beta }

Sum of Roots = \frac{(\alpha+\beta )^2-2\alpha\beta   }{\alpha\beta  }

Sum of roots = (\frac{-7}{2} )^2-2(\frac{-9}{2} ) / \frac{-9}{2}

Sum of roots = \frac{49}{4} + 9 /\frac{-9}{2}

Sum of Roots = \frac{49+36}{4} / \frac{-9}{2}

Sum of roots = \frac{85}{4} * \frac{2}{-9}

Sum of roots = S = -\frac{85}{18}

Product of Roots = \frac{\alpha }{\beta } \frac{\beta }{\alpha }

Product of Roots = P = 1

<u><em>The Quadratic Equation is:</em></u>

=> x^2-Sx+P = 0

=> x^2 - (-\frac{85}{18} )x+1 = 0

=> x^2 + \frac{85}{18}x + 1 = 0

=> 18x^2+85x+18 = 0

This is the required quadratic equation.

5 0
3 years ago
Read 2 more answers
HELP ITS DUE IN A FEW MINS WITH MY OTHER QUESTION BUT I NEED MY LAST HELP PLS AND TYYY I WOULD APPRECIATE IT SM &lt;3
kolbaska11 [484]

Answer:

y=3/4x+1

Step-by-step explanation:

up 3 right 4. U better hurry up and answer that question my guy!

6 0
2 years ago
If I have 9 employees and only 5 of them worked. What is my percentage
Charra [1.4K]
Percentage of working employees is 55.56
workings:5/9 x100
4 0
3 years ago
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