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nikklg [1K]
3 years ago
10

There are 16 types of flowers used to decorate for a party. Twelve of the flowers types last an average of 4 days before they wi

lt. The remaining flowers last an average of 6 days.
What is the average number of days before the flowers wilt?

Enter your answer in the box.
Mathematics
1 answer:
Sergio [31]3 years ago
8 0
16 - 12 = 4 flowers
4f = 6 days
1 flower = 1.5 days
1.5 × 16 = 24 days
Have a good day!
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Step-by-step explanation:

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we take the LHS so here goes,

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the identity becomes,

(\frac{sinA-cosA}{sinAcosA})(\frac{1+sinAcosA}{sinAcosA})\\\\(\frac{sinA+sin^2AcosA-cosA-cos^2AsinA}{sin^2Acos^2A})\\\\

now, we know,

sin^2A=1-cos^2A and cos^2A=1-sin^2A

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(\frac{sinA+(1-cos^2A)cosA-cosA-(1-sin^2A)sinA}{sin^2Acos^2A} )\\\\

(\frac{sinA+cosA-cos^3A-cosA-sinA+sin^3A}{sin^2Acos^2A})

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Hence,

tanAsecA-cotAcosecA

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