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4 years ago

The function g(n) = n2 − 16n + 69 represents a parabola.

1 answer:

5 0

Hello :
g(n) = n2 − 16n + 69
=( n²-16n+64)-64 +69.....( completing the square)
g(n) = (n-8)² +5...... (the vertex form)
the vertex is : (8,5)
the axis of symmetry is the line : n = 1

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Across a horizontal distance of 25 feet, a roller coaster has a steep drop. The height of the roller coaster at the bottom of th

I am Lyosha [343]

Answer:

For each horizontal foot, the roller coaster changes 6 feet of height.

Step-by-step explanation:

Across a horizontal distance of 25 feet, a roller coaster has a steep drop.

So the run is 25 feet.

The height of the roller coaster at the bottom of the drop is -150 feet. (Negative sign is given because it is measured from the top to bottom)

So the rise is 150 feet.

The slope of the roller coaster is,

$m=\dfrac{\text{Rise}}{\text{Run}}=\dfrac{150}{25}=6$

Slope of 6 means, for 1 unit of run, the object has a rise of 6 units.

Therefore, for each horizontal foot, the roller coaster changes 6 feet of height.

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3 years ago

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Elsie bought a video game for $85.00. If the store charges 170% of it's cost for the game, how much is the store's profit?

stira [4]

Answer:

The stores profit is $59.50

Step-by-step explanation:

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3 years ago

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-(5m+1) please help me!!!!!!!!

Art [367]

Answer:

-5m-1

Step-by-step explanation:

You have to multiply the negative sign by 5m and 1.

(-)(5m)= -5m

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3 years ago

What two nonnegative real numbers with a sum of 60 have the largest possible product?

kogti [31]

The biggest possible real number = 60 ÷ 2 = 30

30 + 30 = 60

Largest Product = 30 x 30 = 900

Answer: The two numbers are 30 and 30.

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3 years ago

4y = 9x - 21 y = x-4

Anastaziya [24]

Answer:

x = 1

y = -3

Step-by-step explanation:

if y = x - 4

then reorganise the first equation

4 (x - 4) = 9x -21

4x - 16 = 9x - 21

5 = 5x

x = 1

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3 years ago

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