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ololo11 [35]
3 years ago
14

∑from 1to infinity of n^2* e^-2n

Mathematics
1 answer:
Naily [24]3 years ago
3 0
<span>∑ from 1 to infinity of n^2* e^(-2n) = (e^2 + e^4)/(e^2 - 1)^3 = 0.23768</span>
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A seller has a house that is 1700 ft^2. The neighborhood comps show the line of best fit to be y=0.074x + 50.48. What is a fair
natita [175]
Let the price for the house be x and the square feet of the house be y,
when the house is 1700 sq ft, y = 1700.

y = 0.074x + 50.48
1700 = 0.074x + 50.48
0.074x = 1700 - 50.48
0.074x = 1649.52
x = 22 290.81 (to the nearest cent)

A fair price for this house would be $22 290.81.
4 0
3 years ago
Which of the following must describe a irrational number? A. a number with a repeating or terminating decimal expansion B. a num
Olenka [21]

Answer:

D.

Step-by-step explanation:

A irrational number can be defined as those numbers which are real but can NOT be expressed in simple fractions. The term 'irrational' means 'a number which can not be expressed in ratio of two integers', 'no ratio.'

<u>When a irrational number is expressed in decimal, the numbers keep on expanding without repeating andd without terminating, which means it keeps on expanding infinitely.</u>

For example, π (pi) is an irrational number. When it is expressed in decimals it keeps on expanding non-repeatedly and unendingly.

Another example of an irrational number is √2.

Thus the correct statement that defines irrational number is option D.

5 0
3 years ago
Which of the following is an example of a rational number that is not an integer? a. -3 b. 1 c. 1/3 d. 3
JulijaS [17]

Answer:

the answer is C.1/3

Step-by-step explanation:

Here is why  in mathematics, a rational number is a number that can be expressed as the quotient or fraction p/q of two integers, a numerator p and a non-zero denominator q. Since q may be equal to 1, every integer is a rational number.  Hope this helps. :)

5 0
3 years ago
Read 2 more answers
NO LINKS!!
victus00 [196]

Step-by-step explanation:

<u>Given function:</u>

  • y = |x + 4| - 1

<em>See the graph below</em>

According to the graph we see that

The minimum is (-4, -1) and zero's are (-5, 0) and (-3, 0)

<u>Function is positive: </u>

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<u>Negative:</u>

  • When x is between -5 and -3

<u>Increasing:</u>

  • When x > -4

<u>Decreasing:​</u>

  • When x < -4

6 0
3 years ago
Which of the following best defines a function?
Sidana [21]
Answer: <span>A. A function is a special type of relation for which there is a rule that pairs each input with exactly one output.

Option B is incorrect because it does not include that there cannot be two x-values with the same y-value. Option C is incorrect because it is a relation, not just a set of ordered pairs. Option D is incorrect because there <em>is</em> a particular pattern in a function.

Hope this helps!</span>
8 0
3 years ago
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