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Rashid [163]
3 years ago
9

Why must a scientist keep a complete record of an experiment?

Mathematics
1 answer:
Musya8 [376]3 years ago
3 0
Because if he don’t he wouldn’t keep track on a invention he has made
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Simplify<br> (a+3)2 -3 (2a+3)
Anna71 [15]

Answer:

-4a-3

Step-by-step explanation:

2a + 6 - 6a - 9 =  - 4a - 3

5 0
2 years ago
What's the answer to n+4.5-0.3n-3
VLD [36.1K]
1. Collect like terms

(n - 0.3n) + (4.5 - 3)

2. Simplify

0.7n + 1.5

Final Answer:

0.7n + 1.5
7 0
3 years ago
What is an equation of the line that passes through the points (-5,6) and (7,6)?​
Strike441 [17]
The answer is y = 6
Step-by-step explanation:
The formula of a slope:

We have the points (-5, 6) and (7, 6). Substitute:

The slope m = 0. Therefore it's a horizontal line y = a.
In the given points we have y = 6.
5 0
2 years ago
Wat is the ratio of 10 to 15
Rasek [7]

Ok we can simplify the ratio 10 and 15 by dividing both terms by the greatest common factor which is 5 Ok. So 10 divided by 5 is 2 and 15 divided by 5 is 3 therefore the answer is 2 : 3

4 0
3 years ago
Read 2 more answers
What is the answer to 7x+9=13+6x
Anastasy [175]

X=4

Step-by-step explanation:

Solve for x by moving all terms to the left side

7x+9=13+6x

subtract 6x from both side

7x+9-6x=13

subtract 6x from 7x

x+9=13

subtract 9 from both sides

x=4

7 0
3 years ago
Read 2 more answers
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