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3 years ago

Who can answer this first POINTS

Mathematics

1 answer:

lilavasa [31]3 years ago

4 0

Answer:

$1.45

Step-by-step explanation:

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The height of a small rise in a roller coaster track is modeled by () = −. + . + . , where x is the distance in feet from a supp

Reika [66]

Answer:

Maximum height is 7 feet

Step-by-step explanation:

Solution:-

- The complete question is as follows:

" The height of a small rise in a roller coaster track is modeled by f(x) = –0.07x^2 + 0.42x + 6.37, where x is the distance in feet from a supported at ground level.

Find the greatest height of the rise "

- To find any turning points ( minimum or maximum ) points of a trajectory expressed as function of independent parameter, we find the critical points of the trajectory where the first derivative of the dependent variable w.rt independent variable is set to zero.

- In our case the height of the roller coaster track (y) is function of the distance (x) from a supported pole at ground level.

f(x) = –0.07x^2 + 0.42x + 6.37

- Now set the first derivative equal to zero, and determine the critical values of x:

0 = -0.14x + 0.42

x = 0.42 / 0.14 = 3 ft

- The critical value for the coaster track is at point 3 feet away from the supported pole at ground level. So the height f(x) at x = 3 ft, would be:

f ( x = 3 ) = max height

max height = –0.07*3^2 + 0.42*3 + 6.37

= 7 ft

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3 years ago

What is the square root of 5/2 please answer

elena55 [62]

I GOT YOU BRAIN FAM!!!

I THINK IT'S THAT

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3 years ago

Divide: 10mm2-30m 5mn O 2mºn - 6 O2mn3 - 6mn? O2mn – 30mn O 5m4n - 25

Evgesh-ka [11]

It’s the second one

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3 years ago

How long is 9/8 of a meter

steposvetlana [31]

9/8 of a meter is 1 1/8 of a meter.

9/8 of a meter is also approximately 3.69 feet.

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3 years ago

Read 2 more answers

You have a bag with 4 pairs of socks. There are 2 red pairs and 2 black pairs. You pull a sock from the bag and put it back 3 ti

eduard

Total Number of socks = 4 pairs= 8 socks
Number of red socks = 4
Number of black socks = 4

Probability of pulling a red sock from the bag the first time =   $\frac{4}{8}= \frac{1}{2}$

Since the sock is placed back in the bag before pulling a sock again, the number of socks remains the same.

So,

Probability of pulling a red sock from the bag the second time =   $\frac{4}{8}= \frac{1}{2}$

And

Probability of pulling a red sock from the bag the third time =   $\frac{4}{8}= \frac{1}{2}$

Therefore, the probability of pulling a red sock 3 times from the bag = $\frac{1}{2}* \frac{1}{2}* \frac{1}{2}= \frac{1}{8}$

7 0

3 years ago