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xxTIMURxx [149]

3 years ago

7

(∗− 3x )(∗ +3x) = 16y^2–9x^2 Find the * please

1 answer:

labwork [276]3 years ago

5 0

Answer:The answer is -473

Step-by-step explanation:

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statuscvo [17]

Answer:9

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3 years ago

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The squares on the two legs of a right triangle have an area of 20 cm and 5 cm, what is the area of the square on the hypotenuse

defon

I think the answer is 125 cm

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3 years ago

Complete the pattern and find the rule. 1'3,6,10,15' _ ,_ ,_ , _, 1,2,4,8,16, _ , _, _ ,_

Allisa [31]

A.) 21, 28, 36, 45
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32, 64, 128, 256
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3 years ago

The submarine took 12 min to climb back to the surface. How far did it climb per minute

Sonja [21]

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7 0

3 years ago

suppose you have ab on a coordinate plane located at a(-3,-4) and b(5,-4). under a dilation centered at (9,0), ab becomes a'b' w

Galina-37 [17]

The distace between the center of dilation and point a is diven by:

$d=\sqrt{(9-(-3))^2+(0-(-4))^2} \\ \\ =\sqrt{(9+3)^2+(0+4)^2}=\sqrt{12^2+4^2} \\ \\ =\sqrt{144+16}=\sqrt{160}=\sqrt{16\times10}=4\sqrt{10}$

The distance between the center of dilation and point a' is given by:

$d=\sqrt{(9-6)^2+(0-(-1))^2} \\ \\ =\sqrt{3^2+(0+1)^2}=\sqrt{3^2+1^2} \\ \\ =\sqrt{9+1}=\sqrt{10}$

It can be seen that the distance from the center of dilation to the image is 1/4 times the distance from the centre of dilation to the preimage.

Therefore, the scale factor is 1/4.

7 0

4 years ago