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mihalych1998 [28]
4 years ago
9

Which property is not used to simplify the following expression (x+2)×5-7=5 (x+2)-7

Mathematics
1 answer:
bazaltina [42]4 years ago
8 0
Associative
** property I believe.
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Suppose <br> f '(x) = xe^−x^2
iogann1982 [59]
<h3>Answers:</h3>
  • (a) The function is increasing on the interval (0, infinity)
  • (b) The function is decreasing on the interval (-infinity, 0)

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Explanation:

You should find that the derivative is entirely negative whenever x < 0. This suggests that the function f(x) is decreasing on this interval. So that takes care of part (b).

The interval x < 0 is the same as -infinity < x < 0 which then translates to the interval notation (-infinity, 0)

Similarly, you should find that the derivative is positive when x > 0. So the function is increasing on the interval (0, infinity)

6 0
3 years ago
How do i find the relation to a function??
svet-max [94.6K]

Answer:

"You could set up the relation as a table of ordered pairs. Then, test to see if each element in the domain is matched with exactly one element in the range. If so, you have a function!"

Step-by-step explanation: Look it up :)

4 0
3 years ago
Find the 15th term of the geometric sequence 180, 90, 45,...
denis23 [38]

Answer:

\frac{45}{4096}

Step-by-step explanation:

1) q=90/180=45/90=...=1/2;

2) the formula of the n-th term of the given sequence is:

a_n=a_1*q^{n-1};

3) according to the formula 15th term is:

a_{15}=a_1*q^{15-1}=180*\frac{1}{2} ^{14}=\frac{180}{16384} =\frac{45}{4096}

or ≈0.011.

7 0
3 years ago
Do the ordered pairs below represent a relation, a function, both a relation and a function, or neither a relation or a function
tangare [24]

Answer:

Is a relation and a function.

Step-by-step explanation:

Every set of order pairs represent a relation.

Remember that a relation is a function when every element from the domain has a unique corresponding element in the range. In this case

f(-2) = 3

f(2) = 7

f(7) = -12

f(10) = -15

Therefore the relation is a function as well.

4 0
3 years ago
The city sales tax in your city is 4.4% and an item costs $3 before tax
anastassius [24]

Answer:

$3.13 after you add the tax.

5 0
3 years ago
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