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Rasek [7]
3 years ago
5

In what instance would you use the upside down U when doing interval notation

Mathematics
1 answer:
Jet001 [13]3 years ago
8 0
The U and inverted U symbols, ∪ and ∩, are mathematical symbols used to denote union or intersection, respectively. For example, when a rational algebraic equation is graphed, there may be some points where the equation is undefined. Visually, we see it as breaks or discontinuities. We use the ∪ symbol to express union. For example, {-∞,2)∪(4,+∞). That means that the graph passes at all x values except x=3.

The ∩ symbol is used for intersection of two lines, for instance. When equation A and equation B are graphed, they can intersect at points (x,y). It is therefore expressed as: A∩B = (x,y).
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Answer:

Step-by-step explanation:

Given that the number of people with Alzheimer's disease in the United States age 65 years and over is projected to be

N(t) = 0.00525t^2 +0.075t+4.7,(0 ≤ t ≤ 4)

where N is in millions where year 2010 corresponds to t=0

For 2020, 10 years lapsed hence t= 1

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b) Growth = N(1)-n(0) =0.08025 million

c) N(4) = 5.084

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4 0
3 years ago
3. Last month, Ed ate 9 apples, 5 bananas, 4 peaches,
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Answer:

(5:23), (5/23), or (5 to 23)

there are 5 bannanas to every 23 pieces of fruit there are.

8 0
3 years ago
Click an item in the list or group of pictures at the bottom of the problem and, holding the button down, drag it into the
andrew-mc [135]

Answer:

Wheres the picture?

Step-by-step explanation:

4 0
3 years ago
12/35 = 36/X find x step by step
Zigmanuir [339]

Answer:

x = 105°

Step-by-step explanation:

Question :

\frac{12}{35} =\frac{36}{x}

You can use cross multiplication to solve this.

Let us solve now

\frac{12}{35} =\frac{36}{x}

12 × x = 35 × 36

12x = 1260

Divide both sides by 12.

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Hope this helps you :-)

8 0
2 years ago
Read 2 more answers
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ira [324]

Answer:

Step-by-step explanation:

Given that for X the amount of credit card debt for U.S. adults under 35, is

having mean as 8724 dollars.  

For this point estimate to be unbiased and most accurate we must ensure that

i) The sample represents the population

ii) Samples are drawn at random

iii) Sample sizes are sufficienly large.

Hence we see that C is not right as college students cannot represent the entire population.  Tv poll cannot be said to be random since there may be a significant population who was not aware about this poll.  A and B are right but B is better with more sample size.

4 0
3 years ago
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