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3 years ago

Dilations If ABCD is dilated by a factor of Į, the coordinate of D' would be

Mathematics

1 answer:

ValentinkaMS [17]3 years ago

4 0

9514 1404 393

Answer:

D'(2, -1)

Step-by-step explanation:

Dilation about the origin by factor k multiplies each coordinate by that factor:

(x, y) ⇒ (kx, ky)

For k = 1/3, this is ...

(x, y) ⇒ (x/3, y/3)

D(6, -3) ⇒ D'(6/3, -3/3) = D'(2, -1)

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Dmitriy789 [7]

Answer:

-4 just kidding it is 3

Step-by-step explanation:

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3 years ago

Solve the quadratic equation. Show all of your steps. x 2 + 3 x − 5 = 0

AlladinOne [14]

For this case we have the following quadratic equation:

$x ^ 2 + 3x-5 = 0$

Where:

$a = 1\\b = 3\\c = -5$

We look for the solution using the following formula:

$x = \frac {-b \pm \sqrt {b ^ 2-4 (a) (c)}} {2a}$

Substituting the values:

$x = \frac {-3 \pm \sqrt {3 ^ 2-4 (1) (- 5)}} {2 (1)}\\x = \frac {-3 \pm \sqrt {9 + 20}} {2}\\x = \frac {-3 \pm \sqrt {29}} {2}$

Thus, we have two roots:

$x_ {1} = \frac {-3+ \sqrt {29}} {2}\\x_ {2} = \frac {-3- \sqrt {29}} {2}$

Answer:

$x_ {1} = \frac {-3+ \sqrt {29}} {2}\\x_ {2} = \frac {-3- \sqrt {29}} {2}$

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3 years ago

Please need help on this

umka2103 [35]

A "solution" is where the graph crosses the
x-axis so while the quadratic has no real solutions, the straight line passing through it does as it intersects the x-axis at x=-2.
Hope this helps! :)

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4 years ago

ASAP HELP 100 POINTS<br> 2 attachments

insens350 [35]

Answer:

the awnser is D

Step-by-step explanation:

i think its D but i would wait for a 2ed awnser

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7/9 converted to a decimal

bulgar [2K]

0.77777778 is the answer

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4 years ago

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