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saveliy_v [14]
3 years ago
6

Please help............... :)

Mathematics
2 answers:
ZanzabumX [31]3 years ago
4 0

Answer:

False

Step-by-step explanation:

Let's list all the odd numbers less than 15.

13, 11, 9, 7, 5, 3, 1

Prime numbers are numbers that can only be multiplied by 1 and themselves. But, we can see, that 9 can be multiplied by 3 and 3, making it a not-prime number (sorry I don't remember the exact name for that, I'm blanking out).

The number 9 makes that statement false.

Hope I helped! ouo.

~Potato.

Copyright Potato 2019.

murzikaleks [220]3 years ago
4 0

Answer:

False

Step-by-step explanation:

Consider the odd numbers less than 15

1, 3, 5, 7, 9, 11, 13

A prime number has only 2 factors, namely 1 and itself

9 has factors : 1, 3, 9 ← not Prime

The statement is therefore False

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In a class. 40% of the student's study math and science, 60% of the students study
GaryK [48]

Answer:

2/3

Step-by-step explanation:

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B = Student studying Science

P(B|A) = P(A and B) ÷ P(A).

P(B|A) means the probability of event B given event A.

Given :

P(A and B) = 0.40.

Also P(A) = 0.60.

P(B|A) = 0.40 ÷ 0.60 = 2 ÷ 3.

So, the answer is 2/3.

8 0
2 years ago
A certain process for removing copper from copper bearing ore had been in use for a period of time, and it is known that this pr
Anika [276]

Answer:

d. Ore treated with the new process.

Step-by-step explanation:

This is a common practice in statistics, in which we use a sample of a population to infer something about the entire population. We should use a sample of 100.

For example, if we want to know the proportion of residents of Buffalo, New York, who are Bills fans, we are going to take a sample of like, 100 residents, and then use this to estimate for the entire city.

In this problem, we have that:

A new process that is supposed to increase the recovered amount is being tested. In a simple random sample of 100 batches of ore, an average of 42 pounds per ton were recovered using the new process.

So the population of interest is the ore treated with new process. We use a sample of 100 to gather information about the entire population.

So the correct answer is:

d. Ore treated with the new process.

5 0
2 years ago
James defines a circle as "the set of all the points equidistant from a given point." His statement is not precise enough becaus
postnew [5]

Answer:

The Set Of Points is In a Plane

5 0
3 years ago
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Dominick is training for a race. He spends 0.75 hours running each time he runs and 1.5 hours swimming each time
umka2103 [35]

Answer:

The possible graph is "A". A further explanation is given below.

Step-by-step explanation:

The given values are:

Dominick spends on running

= 0.70 hours

He spends on swimming

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This week,

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If,

Number of runs be "x".

Number of swimming be "y".

then,

⇒ 0.75x+1.5y>6

⇒ 75x+150y>600

⇒ x+2y>8

Therefore, x+2y=8

x = 0

y = 4

So the above is the correct answer.

4 0
3 years ago
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68040 or 10^4 x 6.8040
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2 years ago
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