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polet [3.4K]
2 years ago
14

Please simplify this it would help a lot

Mathematics
2 answers:
dexar [7]2 years ago
8 0

Answer:

-1

Step-by-step explanation:

Ierofanga [76]2 years ago
8 0

Answer:

-1

Step-by-step explanation:

Calculate the power so 3^2 would be 9

So the problem would now be

3  +   \sqrt{10 - 9 \:  - 5}

Calcute the sum or difference

3 +  \sqrt{1 - 5}

Simplify the radical expression

3 + 1 - 5

And we know that 3 + 1 = 4

And 4-5= -1

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The path followed by a roller coaster as it climbs up and descends down from a peak can be modeled by a quadratic function, wher
Romashka [77]

Answer:

y = -0.1x^2 + 250 ft

Step-by-step explanation:

Because this quadratic equation would have the curve-down form of:

y = -ax^2 + b

where a and b are positive coefficient.

If we let the peak (250 ft) of the curve be at x = 0. Then

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Also at the begins and ends, thats where y = 0, the 2 points are separated by 100 ft. So let the begin at -50 ft and the end at 50ft. We have

-a(\pm 50)^2 + 250 = 0

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a = 250/2500 = 0.1

Therefore, the model quadratic equation of our path would be

y = -0.1x^2 + 250 ft

8 0
3 years ago
How do you solve what is 30% of $240
DerKrebs [107]
The Answer would be x=72. Why? Because \frac{x}{240} =  \frac{30}{100}.   Fraction  \frac{30}{100} is your %.  You Cross multiply 240 * 30 = 100x
240 time 30 = 7200. you want x to  be alone so you do 7200 divided by 100 equaling 72. So you get x=72. 
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3 years ago
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