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Arturiano [62]
3 years ago
10

Why do scientist use models?

Mathematics
2 answers:
Elina [12.6K]3 years ago
7 0
So they can record their info with a visual aspect

Tema [17]3 years ago
6 0
In science<span>, a model is a representation of an idea, an object or even a process or a system that is </span>used<span> to describe and explain phenomena that cannot be experienced directly. </span>Models<span> are central to what </span>scientists do<span>, both in their research as well as when communicating their explanations.</span>
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Which of the following is the weakest r-squared value? Which one is the strongest?
Setler [38]

Answer:

Weakest value = 0.0196

Strongest value = 0.5929

Step-by-step explanation:

Given:

Choices

0.691

-0.14

-0.24

-0.77

Computation:

0.691² = 0.477481

-0.14² = 0.0196

-0.24² = 0.0576

-0.77² = 0.5929

Weakest value = 0.0196

Strongest value = 0.5929

7 0
3 years ago
The diameter of a circle is 9 m. Find the circumference to the nearest tenth.​
DerKrebs [107]

Answer:

Circumference = diameter × π

Take π =3. 14

  • 9×3. 14 = 28. 26 ~ 28. 3
5 0
3 years ago
Can someone really help me please
maksim [4K]

Answer:

1-B, 2-B, 3-B, 4-B, 5-A

4 0
2 years ago
In order to qualify for a bowling tournament, bowlers bowl 20 games. The results are normal. The average score was 167 with a st
Ksenya-84 [330]

Answer:

189

Step-by-step explanation:

bc that's just what I think

6 0
3 years ago
Suppose that 95% of the fasteners pass the initial inspection. Of those that fail the initial inspection, 20% are defective. Of
hichkok12 [17]

Answer

Step-by-step explanation:

Let x be the fasteners

95% of x passed, and 5% of x failed

20% of the 5% which failed are defective, remaining the 80% of the failed 5%.

Now 40% of this 80% of the 5% which failed are scrapped, meaning only the remaining 60% passed second inspection.

Thus

a). The proportion ;

60% of 80% of 5% of x

mathematically

= 60/100 × 80/100 × 5/100

= 0.024 or 2.4%

b) initially 95% passed and later on 2.4% pass again. Therefore total that passed = 95%+2.4%=97.4%

c) probability that it passed on first inspection is 95/100

Percentage that went through recrimping = 80% of 5% = 80/100 × 5/100 = 1/25 or 0.04 or 4%

Thus probability of passing and not going through recrimping

= 1 - (1/25) = 0.96 or 96%

7 0
3 years ago
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