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seraphim [82]
3 years ago
13

If triangle ABC is dilated by a scale factor of 2.5 with a center of dilation at vertex B, how does the area of A'B'C' compare w

ith the area of ABC?
Mathematics
2 answers:
Dafna1 [17]3 years ago
6 0
The area of A'B'C is 6.25 times the area of ABC. Also it wouldnt hurt the report the guy below who's obviously milking points.

Over [174]3 years ago
6 0

Answer:

The area of A'B'C' is 6.25 times the area of ABC.

Step-by-step explanation:

Got this right on USA test prep

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Can someone please help me with this question?? It’s really hard and once you understand it, can you please give me an explanati
Thepotemich [5.8K]

We want to subtract 8x + 3 from -2x+5. We can create an expression to represent this.

-2x + 5 - (8x + 3).


After this, lets distribute the - sign (think of this like expanding something with -1).

-2x + 5 - 8x - 3


Lastly, we just need to combine like terms.

-2x + 5 - 8x - 3


Combine the 5 and -3 to get 2.

-2x + 2 - 8x


Combine the -2x and -8x to get -10x.

-10x + 2


The final answer to the question is therefore A.

3 0
3 years ago
Please answer the question soon! (Select all that apply)
lisov135 [29]

Answer:

Step-by-step explanation:

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5 0
3 years ago
Please help with this Math Question...
Nataly [62]

Answer: A

<u>Step-by-step explanation:</u>

f(x) = x³ + 4x² + 7x + 6

possible rational roots are ±{1, 2, 3, 6}

Try x = -2

-2 |   1   4   7   6

   <u>|   ↓  -2  -4  -6</u>

       1    2    3   0 ← remainder is 0 so x = -2 is a root  ⇒  (x + 2) = 0

The factored polynomial x² + 2x + 3 = 0 is not factorable so use the quadratic formula to find the roots.

a=1, b=2, c=3

x=\dfrac{-b\pm\sqrt{b^2-4ac} }{2a}

x=\dfrac{-(2)\pm\sqrt{(2)^2-4(1)(3)} }{2(1)}

x=\dfrac{-2\pm\sqrt{4-12} }{2}

x=\dfrac{-2\pm\sqrt{-8} }{2}

x=\dfrac{-2\pm2i\sqrt{2}}{2}

x = -1 \pm i\sqrt{2}

x = -1 + i\sqrt{2}       x = -1 - i\sqrt{2}

x - (-1 + i\sqrt{2})=0       x - (-1 - i\sqrt{2})=0

The factors are:

(x - 2)[x - (-1 + i\sqrt{2})][x - (-1 - i\sqrt{2})]




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3 years ago
Can someone tell me what the volume is? It is question #1
tia_tia [17]
The answer would be 19.6

8 0
3 years ago
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How does the graph of g(x) = 2^x+3 differ from the graph of f(x) = 2^x ? **WILL BE GIVING BRAINLIEST**
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The graph of g(x) will be moved 3 units up i believe!!
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