3 years ago

For f(x) = x +6 and g(x) = 2x + 1, find the following.

Mathematics

1 answer:

GREYUIT [131]3 years ago

3 0

Answer:

f(g(x)) = 2x + 7; g(f(x)) = 2x+13; f(g(4)) = 15

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A school has 840 pupils, if the school hall has seats 85% of the pupils, how many pupils will have no seats?

ioda

Answer:

126

Step-by-step explanation:

So theres 840 people and 85% got a seat

We just do 840 * 85% = 714

then to find the people without the seat

840 - 714 = 126

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3 years ago

Find the area and show work if you can.

baherus [9]

Answer:

The area of figure is 420 000 ft².

Step-by-step explanation:

You can seperate the diagram into 2 parts, top is trapezium and bottom is rectangle. Then you have to use the formula for each part :

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$A = \frac{1}{2} \times (a + b) \times height$

Let a = 600 ft,

Let b = 900 ft,

Let height = 200 ft,

$A = \frac{1}{2} \times (600 + 900) \times 200$

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Rectangle,

$A = base \times height$

Let base = 900 ft,

Let height = 300 ft,

$A = 900 \times 300$

$A = 270 \: 000 \: \: \: {feets}^{2}$

Lastly, you have add both areas together :

$A = 150000 + 270000$

$A = 420 \: 000 \: \: \: {feets}^{2}$

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3 years ago

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Explain how to use a graph of the function f(x) to <br> find f(3).

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Answer:

You would plug in the number 3 into both the F(x) and the x of the equation. By solving for x of your new equation, you would be able to find the value of f(3)!

Step-by-step explanation:

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3 years ago

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PLS HELP ME AM SO STUCK ON THIS

shepuryov [24]

Answer:

it is 612 I think

Step-by-step explanation:

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2 years ago

What are the solutions to the equation -54 + 6x = 0

Sladkaya [172]

Answer:

x=9

Step-by-step explanation:

-54 + 6x = 6 • (x - 9)
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Add 9 to both sides of the equation : x = 9

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3 years ago

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