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3 years ago

I don't understand pls help

Mathematics

1 answer:

MrMuchimi3 years ago

3 0

Twilight was liked by half the class because if you add up the number of students you get 24 and half of 24 is 12
(Hope this helped)

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A block with a surface area of 4 m2 is pressed against the ground using a force of 100 N.

Musya8 [376]

Answer:

Step-by-step explanation:

Pressure p = force F/ area A

P = F/A

F = 100N and A = 4m^2

P = 100/4

P = 25N/m^2

8 0

3 years ago

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dimaraw [331]

At a package weight of 8 they both cost $37

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3 years ago

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At Garcia’s bike rentals it cost $23 to rent a bike for 6 hours. how many hours of bike use does a customer get per dollar? Roun

Ket [755]

Given:

Rental costs $23 to rent a bike for 6 hours.

$\begin{gathered} \text{Customer get a bike rental for a dollar=}\frac{6}{23} \\ \text{Customer get a bike rental for a dollar=}0.26\text{ hours} \end{gathered}$

A customer gets 0.26 hours as a rent for a dollar.

6 0

1 year ago

Please help. Not sure how to do this one

Sladkaya [172]

The correct answer is: Option 3: $(hofog)(x)=\frac{x-14}{x+4}$

Step-by-step explanation:

Given

$f(x)=\frac{x-6}{x}\\g(x)=x+4\\h(x)=3x-2$

We have to find

$(hofog)(x)$

This will be equal to:

$h(f(g(x)))$

So we have to find the composition of (fog)(x) first

$(fog)(x) = f(g(x))\\=\frac{x+4-6}{x+4}\\=\frac{x-2}{x+4}$

Now,

$(hofog)(x)=h(f(g(x)))\\=3(\frac{x-2}{x+4})-2\\=\frac{3x-6}{x+4}-2\\=\frac{3x-6-2(x+4)}{x+4}\\=\frac{3x-6-2x-8}{x+4}\\=\frac{x-14}{x+4}$

The correct answer is: Option 3: $(hofog)(x)=\frac{x-14}{x+4}$

Keywords: Composition, Functions

Learn more about function composition at:

#LearnwithBrainly

8 0

3 years ago

A community bird-watching society makes and sells simple bird feeders to raise money for its conservation activities. The materi

valentina_108 [34]

Answer:

N(x) = 40 - 2x

P(x) = -2x² + 52 x - 240

maximum profit = 13

Step-by-step explanation:

given data

feeder cost = $6

average sell = 20 per week

price = $10 each

solution

we consider here price per feeder = x

and profit per feeder id here formula = x - 6

so that here

total profit will be

P (x) = ( x - 6 ) Nx

here N(x) is number of feeders sold at price = x

so formula for N (x) is here

N(x) = 20 - 2 ( x - 10 )

N(x) = 40 - 2x

so that

P(x) = (x-6) ( 40 - 2x)

P(x) = -2x² + 52 x - 240

since here

a = -2

b = 52

c = -240

a < 0

so quadratic function have maximum value of c - $\frac{b^2}{4a}$

so it will be

maximum value = -240 - $\frac{52^2}{4(-2)}$

maximum value = 98

so here maximum profit attained at

x = $\frac{-b}{2a}$

x = $\frac{-52}{2(-2)}$

x = 13

maximum profit = 13

3 0

3 years ago