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qaws [65]
3 years ago
13

B^3-21/5b+9 when b = 3

Mathematics
2 answers:
vlada-n [284]3 years ago
8 0

Hey there!

b^3 - 21/5b + 9

= 3^3 - 21/5(3) + 9

= 27 - 63/5 + 9

= 72/5 + 9

= 117/5

Answer: 117/5

Good luck on your assignment and enjoy your day!

~Amphitrite1040:)

Vesna [10]3 years ago
5 0

Answer:

-21b + 180 / 5

Step-by-step explanation:

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emmainna [20.7K]
Larger triangle’s base length

a^2 + b^2 = c^2
a^2 + 3^2 = 8^2
a^2 = 8^2 - (3^2)
sqrt(a^2) = sqrt(55)
a = sqrt(55)
__________________

Smaller triangle’s base length:

The same formula applies.
a^2 + 3^2 = 5^2
a^2 = 5^2 - (3^2)
sqrt(a^2) = sqrt(16)
a = 4
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The finale!

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Good luck to you!
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3 years ago
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matrenka [14]
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seraphim [82]

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