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Ivanshal [37]
3 years ago
12

PLEASE HELP!! ASAP! Thank you!

Mathematics
2 answers:
ASHA 777 [7]3 years ago
6 0
X^2+2x=19
x^2+2x+1=20
(x+1)^2=20

nexus9112 [7]3 years ago
3 0
x^2+2x=19\\
x^2+2x+1=20\\
(x+1)^2=20
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What are the coordinates of the image of vertex R after a reflection across the y-axis? (–4, 3) (4, –3) (–3, –4) (3, 4)
bogdanovich [222]

(–4, 3) (4, –3) (–3, –4) (3, 4)

this is a rather simple yet complex concept the easiest way to solve these is to do the exact opposite.

so in this instance it is refrcted across the y-axiss so we swap ONLY the x value NOT the Y ie (-4,3) would switch to (4,3)

same thing would apply if it reflected across x-axis ex (-4,-3)

If it reflect across orgin you change both signs. ex (4,-3)

ie.

(–4, 3) (4, –3) (–3, –4) (3, 4)

changes to

(4, 3) (-4, –3) (3, –4) (-3, 4)

hope it helps

6 0
4 years ago
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densk [106]

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18.84 feet

Step-by-step explanation:

The circumference of a circle can be found using:

c=π*d

The radius is given, but we have to find diameter. The diameter is twice the radius, or

d=2r

The radius is 3 feet. Substitute 3 in for r.

d=2*3

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Now we have the diameter. We can substitute 6 in for d in the circumference formula. We can also substitute 3.14 in for pi.

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The circumference is <u>18.84 feet</u>

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Vinvika [58]
42+18=60

so
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this should work:)
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xeze [42]

Answer:

-20.

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(10)9 - (10)11

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10(9 - 11)

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4 0
3 years ago
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