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Deffense [45]
3 years ago
13

Which statement is false?

Mathematics
2 answers:
kotykmax [81]3 years ago
6 0

Answer:

Every real number is a rational number (False)

Step-by-step explanation:

A Rational Number is a number that can be written in this form \frac{a}{b} such b≠0. But in the Real Set, there is other subset like the Irrational set whose elements cannot be written in p/q form such as \sqrt{2}, \pi, etc. Those numbers can't be written as a ratio p/q.

So it is false to say that Every Real number is a rational number, for Irrational numbers are not Rational ones.

Ahat [919]3 years ago
4 0
Every positive integer is a rational number

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Pls help me i just need help
Ray Of Light [21]

Step-by-step explanation:

the total cost is, of course, first the cost to buy the copier, and then the running costs per copy made.

it is really that easy.

the equations just put this into mathematical form :

A

y = 0.02×x + 800

B

y = 0.06×x + 600

please notice, we put $600 or $800 in as constant term, because these costs are the starting costs that we have, even if we never make a single copy (x = 0).

and then the total cost goes up with every copy we make.

I cannot draw here.

so, to find the number of copies where both copier systems would cost the same, means we have to say both equating deliver the same result :

0.02×x + 800 = 0.06×x + 600

200 = 0.04×x

x = 200 / 0.04 = 5000

when making 5000 copies both costs are the same.

4 0
2 years ago
Which is the following statements is NOT true?
Dominik [7]

Answer:

The last one is the answer; The slope of AB is different than the slope of BC.

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Question 12 (1 point) Given P(A) 0.34, P(A and B) 0.27, P(A or B) 0.44, what is P(B)? Answer in decimal form. Round to 2 decimal
Tema [17]

Answer:  The required probability of event B is P(B) = 0.37.

Step-by-step explanation:  For two events A and B, we are given the following probabilities :

P(A) = 0.34,    P(A ∩ B) = 0.27   and   P(A ∪ B) = 0.44.

We are to find the probability of event B, P(B) = ?

From the laws of probability, we have

P(A\cup B)=P(A)+P(B)-P(A\cap B)\\\\\Rightarrow 0.44=0.34+P(B)-0.27\\\\\Rightarrow 0.44=0.07+P(B)\\\\\Rightarrow P(B)=0.44-0.07\\\\\Rightarrow P(B)=0.37.

Thus, the required probability of event B is P(B) = 0.37.

6 0
3 years ago
How is the graph of y=7x^2+4 different from the graph of y=7x^2
Hoochie [10]
1, it is shifted 4 units up
6 0
3 years ago
Please help me! Please don't get it wrong ;-;
polet [3.4K]

Answer:

Its 40 degrees

Step-by-step explanation:

60+80=140

180-140=40   (a straight line is always 180 degrees)

Hope it helped

3 0
3 years ago
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