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Tasya [4]
3 years ago
15

Which statements represent the rules of significant figures? Check all that apply.

Mathematics
1 answer:
maksim [4K]3 years ago
8 0

Answer:

The integers 1, 2, 3, 4, 5, 6, 7, 8, and 9 are always significant.

Zeros in between numbers are always significant.

Step-by-step explanation:

There are three rules by which the number of significant figures can be determined:

  • The digits which are other than the zero are said to be significant figures.
  • Any zero which is present between two significant figure is said to be significant.
  • The zero which appears in the right of the decimal portion in the end is significant. The zero which comes after the decimal is not significant.
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Please help, I'm really confused with these two questions ):
erik [133]

Step-by-step explanation:

The die is rigged, so "not 3" is not a possibility.  Ruling out those branches of the tree, there are 4 possible outcomes, one of which is the desired outcome.  So the probability is 1/4.

A fair die has six sides that are equally likely, so the probability of rolling more than 2 is always 4/6.  The outcome of the first roll does not effect the outcome of the second roll.

7 0
3 years ago
Please answer this question
Papessa [141]
I don’t get it either
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2 years ago
Add the two expressions.<br><br> −2.4n−3 and −7.8n+2
Sphinxa [80]

Answer:

-10.2n - 1

Step-by-step explanation:

We have two expressions in variable n and we have to add the two expressions.

An important thing to note is that only like terms can be added. i.e. the term with "n" can only be added or subtracted to the term with "n". Similarly a constant can only be added or subtracted to a constant.

(-2.4n-3)+(-7.8n+2)\\=-2.4n-3-7.8n+2\\=-2.4n-7.8n-3+2\\=-10.2n-1

Thus, the two given expressions add up to -10.2n - 1

4 0
2 years ago
Circle and Arcs<br><br> x + y + z =[ ?]
Lelechka [254]
360 degrees. x+y+z = 360°
4 0
2 years ago
When asked to write a point slope equation for a line passing through the points (-4,-7) and (3,2) a student wrote y-2=-9/7(x-3)
AleksAgata [21]
First let's find the slope
Slope formula: 
\frac{y_2-y_1}{x_2-x_1} =slope
Given the two coordinates: 
(-4,-7) (3,2) 
 x1,y1  x2,y2

Plug these numbers into the formula
\frac{2-(-7)}{3-(-4)} = \frac{9}{7}
In this case the mistake that was made was that the student wrote the slope negative instead of positive
Final answer: 
<span>y-2=9/7(x-3)</span>
8 0
2 years ago
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