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Rom4ik [11]
3 years ago
15

The movement of a projectile, thrown upwards vertically, is described by the equation y = - 40x

=x%5E%7B2%7D" id="TexFormula1" title="x^{2}" alt="x^{2}" align="absmiddle" class="latex-formula"> + 200x . Where y is the height, in meters, reached by the projectile x seconds after launch. Therefore, determine the instant when the projectile hits the ground.
Mathematics
1 answer:
kow [346]3 years ago
7 0
At X = 2.5 the projectile hits the ground
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If you horizontally stretch the quadratic parent function, f(x) = x2, by a factor
Brilliant_brown [7]

Answer:

Step-by-step explanation:

If you horizontally stretch the quadratic parent function, f(x) = x2, by a factor

of 3, what is the equation of the new function?

A. g(x) = 1/3x2

B. g(x) = 3x2

C. g(x) = (3x)2

D. g(x) = (1/3x)2

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Which is a stretch of an exponential decay function?
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The answer 

for such a question, it is required to graph each function, the answer is 
<span>f(x) =4/5(4/5 )^x 
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3 years ago
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What is the standard form of y-8=2(x+3)
Zinaida [17]
Either:
y-8=2(x+3)
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or 

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3 years ago
3. The weights of apples in a shipment from Al's Orchards are normally distributed with a mean of 142 grams and a standard devia
Kamila [148]
The z scores corresponding to the mean weight of a rotten apple relative to the apples from either orchard are, respectively,

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3 0
3 years ago
10. Create a scenario to explain why 3P3=3!.
Flauer [41]

Step-by-step explanation:

Permutation :The number of ways to choose a sample of r elements from a set of n distinct objects where order does matter and replacements are not allowed.

                                  nPr = \frac{n!}{(n-r)!}

Factorial : There are n! ways of arranging n distinct objects into an ordered sequence.  

Considering a situation when n = r in a permutation, nPr reduces to n!, a simple factorial of n.

Proof: 3P3 = 3!

n = 3 and r = 3

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But 0! = 1

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3 0
3 years ago
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