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Lerok [7]
3 years ago
6

Problem solving in trig, help?

Mathematics
1 answer:
antoniya [11.8K]3 years ago
4 0

Answer:

13170 to the nearest whole number.

Step-by-step explanation:

We can use Heron's formula to do this:

Area =  √[s(s-a)(s-b)(s-c)]    where s = the semi-perimeter.

s =  (155+175+260)/ 2

= 295

Therefore the Area = √ 295(295-155)(295-175)(295-260)

= √173460000

=  13170.42.

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Answer:

Step-by-step explanation:

Let x represent the seating capacity

Number of seats = 40+x

Profit per seat = 10 - 0.20x

For maximum number of seats

P(x) = ( 40+x ) ( 10-0.20x )

P(x) = 400+10x-8x-0.2x^2

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Differentiating with respect to ( x )

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The seating capacity will be 40+5 = 45

For the maximum profits

40X10+ 9.9 + 9.8 + 9.7 + 9.6 + 9.5 + 9.4 + 9.3 + 9.2 + 9.1 + ... 1.0, 0.9, 0.8, 0.6, 0.5, 0.4, 0.3, 0.2, 0.1

= 400 + an arithmetic series (first term = 0.1, common difference = 0.1, number of terms = 8+ 40 = 48 )

= 400 + (48/2)(2X0.1 + (48-1)X0.1)

= 400 + 24(0.2 + 4.7)

= 400 + 24(4.9)

= 400 + 117.6

= 517.6

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3 years ago
Los 2/9 de mis lapices son blancos y los 21 restantes azules. ¿Que fracción de lapices son azules? ¿Cuantos lapices en total ten
Gelneren [198K]

Answer:

7/9 son azules. hay 27 en total y hay 6 lapices de blanco

Step-by-step explanation:

8 0
3 years ago
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