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OverLord2011 [107]
3 years ago
9

Figure B is a scaled copy of Figure A.

Mathematics
1 answer:
dem82 [27]3 years ago
5 0

Answer:

The length of a is 3 units

And breadth of a is 1 units

The length of b is 9 units and the Breadth of b is 3 units.

Therefore, Ratio of their sides=1:3.

Therefore, Scale os 1:3

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In the diagram, △ABC∼△DEF. The area of △ABC is 180 square centimeters. Find the area of △DEF.
Alexeev081 [22]

Answer:

20

Step-by-step explanation:

The first step is to find out the similarity reason of the sides of the triangle, so we just divide the big side by the small side (12/4=3).

Now, for the similarity reason of the areas, we just square that number (3^2=9).

Then we just divide the area of the big triangle by 9, which is 180/9= 20.

4 0
3 years ago
Read 2 more answers
Find five arithmetic means between-18 and 36
Aleksandr [31]
Are there any answer choices ?
3 0
3 years ago
Ahmed learned: "To multiply a whole number by ten, just place a zero at the end of the number." For
Gala2k [10]

Answer:

a) 2x^4 + 8x^3 + x^2 + 3x

b) evaluate this polynomial at x = 10

Step-by-step explanation:

Hi!

a)

The product of a sum is the sum of the products, having said this:

(2x^3 + 8x^2 + x + 3) \times x = 2x^4 + 8x^3 + x^2 + 3x

b)

We can use the result from part a and consider x = 10.

First lets take the first polynomial

2x^3 + 8x^2 + x + 3 = 2(10)^3 + 8 (10)^2+10^1+3(10)^0

Knowing that every number (excepting probably 0, which could be undefined for some or 1 for others) to the power of 0 is one:

2x^3 + 8x^2 + x + 3 = 2(1000)+ 8(100)+10+3(1) = 2813

Which is the initial number

Now lets conisder the product of the polynomial times x and evaluate it at x=10:

(2x^3 + 8x^2 + x + 3) \times x = 2x^4 + 8x^3 + x^2 + 3x

(2(10)^4 + 8(10)^3 + 10^2 + 3(10) = 2 (10000) + 8(1000) + 100 + 3(10)

= 28130

We can now see that teh rule is treu because we can see the whole number as a sum of numbers from 0 to 9 multiplied by a power of 10, and when it is multiplied by 10, each power increases by one, and at the end, the final result is adding a zero at the end

6 0
3 years ago
The average performance rating of the employees at Company A is 6.5 on a scale from 1 to 10 (10 being highest). The standard dev
forsale [732]
That is a life problem bruh
7 0
3 years ago
Pls help i will give brainliest
Sunny_sXe [5.5K]

Answer:

( -4 , 13 )

Step-by-step explanation:

2 ( -4 ) + ( 13 ) = 5

5 = 5

3 ( 13 ) = 15 - 6 ( -4 )

39 = 39

( -4 , 13 )

6 0
3 years ago
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