15 MINUTES LEFT PLEASE!

Mathematics

2 answers:

inysia [295]3 years ago

8 0

Answer:

65x^2 – 26x

Step-by-step explanation:

To determine the total number of seats, take the number of rows and multiply by the number of seats per row

f(x) * g(x)

13x * (5x-2)

65x^2 -26x

kow [346]3 years ago

3 0

Answer:

15 MINUTES LEFT PLEASE!

A wedding planner is organizing the seating for a wedding. He can represent the number of rows by the function f(x) = 13x

and the number of seats in each row by the function g(x) = 5x-2

Which function represents the total number of seats?

65x + 26

65x – 26

65x2 + 26x

65x2 – 26x✔

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Andre45 [30]

You have to find the slope of the line. It will give you the conversion rate from inches to centimetres or the other way around.

Looking closely at the graph, or using a ruler as reference, you can estimate that 30 cm ≈ 12 in. In terms of the graph, the line very nearly passes through the point (12, 30). It also passes through the origin, (0, 0), since 0 cm = 0 in exactly.

The slope of the line is then

$\dfrac{30\,\mathrm{cm}-0\,\mathrm{cm}}{12\,\mathrm{in}-0\,\mathrm{in}} = \dfrac{30\,\rm cm}{12\,\rm in} = \dfrac{5\,\rm cm}{2\,\rm in} = 2.5\dfrac{\rm cm}{\rm in}$