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jeka94
3 years ago
15

Polygon Y is a scaled copy of polygon X using a scale factor of 1/3. Polygon Ys area is what fraction of polygons Xs area?

Mathematics
1 answer:
PSYCHO15rus [73]3 years ago
8 0

Answer:

The answer is "\bold{\frac{1}{9}}"

Step-by-step explanation:

In this question, when two figures are similar so, the ratio from its size is equal to the squared factor that are:

Scaling factor= Z

Area of Polygon Y=a

Area of Polygon X=b

z=\frac{1}{3}\\\\using \ substitution:\\\\(\frac{1}{3})^2=\frac{a}{b}\\\\\frac{1}{9}=\frac{a}{b}\\\\a=\frac{1}{9}b

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Rewrite each expression below using the distributive property then evaluate each expression for X equals two and Y equals five.
Anit [1.1K]
A)8*2-4            b)6*5+2+24*5                c)7*2(5-2)                  d)3(9+5)
  12                      30+2+120                     14*3                             3*14
                            152                                  42                              42
i hope it helps

4 0
3 years ago
5+7k>=-30 and -4k +4>20​
Slav-nsk [51]

Answer:

\large\boxed{-5\leq k

Step-by-step explanation:

5+7k\geq-30\ \wedge\ -4k+4>20\\\\5+7k\geq-30\qquad\text{subtract 5 from both sides}\\7k\geq-35\qquad\text{divide both sides by 7}\\\boxed{k\geq-5}\\\\-4k+4>20\qquad\text{subtract 4 from both sides}\\-4k>16\qquad\text{change the signs}\\4k

7 0
3 years ago
A parallelogram where opposite angles are equal and all sides are equal
Kipish [7]
I think that would be a rhombus.
5 0
3 years ago
Read 2 more answers
If the graph of f(x)= 3^x is reflected over the x-axis, what is the equation of the new graph?
Lerok [7]

Answer:

  • g(x) = - 3^x

Step-by-step explanation:

<u>Reflection over x-axis results in:</u>

  • f(x) → - f(x) translation

<u>Therefore the new function is:</u>

  • g(x) = - 3^x
8 0
3 years ago
Read 2 more answers
Can anyone help me with the 7th and 8th question which I have taken a bad photo of?
Vsevolod [243]
<u>Question 7:

Define x :
</u>
Let the digit in the ones place be x.
The digit in the tens place is  x+2.

The sum of the digit and its reverse is 66

<u>Find x:</u>

10(x + 2) + x + 10x + (x + 2) = 66
10x  + 20 + x + 10x + x + 2 = 66
22x + 22 = 66
22x = 44
x = 2

<u>Find the number:</u>

The number in the ones place = x= 2
The number in the tens place = x = 2 + 2 = 4

Answer : The number is 42.

<u>Question 8:</u>

<u>Define x:</u>

Let the digit in the tens place be x.
The digit in the ones place is x+7.

The number  = 10x + x + 7 = 11x + 7

If the digit interchange,
the number = 10(x + 7) + x = 10x + 70 + x = 11x + 70

<u>Find x:
</u>
9(11x + 7) = 2(11x + 70)
99x + 63 = 22x + 140
99x - 22x = 140 - 63
77x = 77
x = 1

<u>Find the number:
</u>
x = 1
x + 7 = 1 + 7 = 8
So the number is 18

Answer: The number is 18.

7 0
3 years ago
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