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Galina-37 [17]
3 years ago
15

Six divided by the difference of a number and 1​, minus 5 divided by a number plus 1​, equals 5 times the reciprocal of the diff

erence of the number squared and 1. What is the​ number?
Mathematics
1 answer:
AleksandrR [38]3 years ago
3 0
I am not very good you should probably ask someone else sorry
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The number of typographical errors in a document follows a Poisson distribution with a mean of 3 errors per page. Let X represen
n200080 [17]

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probability of x is 0.22 correct to two decimal places

Step-by-step explanation:

step 1. use the poisson formula given as

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3 0
3 years ago
We are standing on the top of a 320 foot tall building and launch a small object upward. The object's vertical altitude, measure
STALIN [3.7K]

Answer:

The highest altitude that the object reaches is 576 feet.

Step-by-step explanation:

The maximum altitude reached by the object can be found by using the first and second derivatives of the given function. (First and Second Derivative Tests). Let be h(t) = -16\cdot t^{2} + 128\cdot t + 320, the first and second derivatives are, respectively:

First Derivative

h'(t) = -32\cdot t +128

Second Derivative

h''(t) = -32

Then, the First and Second Derivative Test can be performed as follows. Let equalize the first derivative to zero and solve the resultant expression:

-32\cdot t +128 = 0

t = \frac{128}{32}\,s

t = 4\,s (Critical value)

The second derivative of the second-order polynomial presented above is a constant function and a negative number, which means that critical values leads to an absolute maximum, that is, the highest altitude reached by the object. Then, let is evaluate the function at the critical value:

h(4\,s) = -16\cdot (4\,s)^{2}+128\cdot (4\,s) +320

h(4\,s) = 576\,ft

The highest altitude that the object reaches is 576 feet.

6 0
3 years ago
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