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navik [9.2K]
3 years ago
9

What are the solutions to the equation? x2 + 6x = 40

Mathematics
2 answers:
creativ13 [48]3 years ago
8 0
Just plug in the numbers:

4:  16 + 24 = 40  YES

5 = 25 + 40 ≠ 40 NO

8: 64 + 48 ≠ 40 NO

10: 100 + 60 ≠ 40 NO


So A. is the correct answer. Just to be sure:

-10: 100 + ( - 60) = 40 


Your answer is A. Hope that helps! :) 
Zielflug [23.3K]3 years ago
6 0

A............................

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30 degrees. 

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6 0
3 years ago
2.375 in expanded form
kari74 [83]

Answer:

2375^-3

Step-by-step explanation:

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6 0
3 years ago
*trigonometry and area.*
soldier1979 [14.2K]

Answer:

<u>The correct answer is that the area of the regular octagon is 309 cm²</u>

Step-by-step explanation:

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Replacing with the real values, we have:

Area = (2 * 8²)/tan 22,5°

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3 years ago
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