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Bezzdna [24]
3 years ago
6

Can someone help me? I don’t know how to solve it. Thank you!

Mathematics
1 answer:
Minchanka [31]3 years ago
3 0

Answer:

C. 5x^2 - 8x + 13

Step-by-step explanation:

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Simplify the expression below.
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Answer:

D. 10^10

Step-by-step explanation:

Multiplying numbers with exponents rule : a^b*a^c=a^b^+^c

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10^3 • 10^7

keep the base as 10 and add the exponents

10^3 * 10^7 =10^3^+^7=10^1^0

Keep in mind that this only works when the bases are the same.

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I think It is 6,12,24,18
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3 years ago
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Awser to this questin
kobusy [5.1K]


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3 years ago
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If mZDEC = (12x - 3), mZBCE =
kati45 [8]

Answer:

Step-by-step explanation:

12x - 3 = 180 - (7x - 26) supplementary angles

19x = 209

   x = 11

m∠DEC = 12(11) - 3 = 129°

m∠BCE = 7(11) - 26 = 51°

M∠ADE = 129 - 72 = 57°  exterior angle rule

m∠EDB = 180 - 57 = 123° supplementary angles

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Solving two step equations​
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