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Advocard [28]
3 years ago
9

You are adding two rational numbers with different signs. How can you tell if the sum will be positive negative or zero

Mathematics
1 answer:
Fiesta28 [93]3 years ago
8 0
Positive if the positive number is greater than the negative number. negative if the negative number is greater. 0 if the two numbers are opposites of eachother. an example of this would be -5+5
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What set of reflections and rotations would carry rectangle abc do onto itself
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3 0
3 years ago
If the diameter of a circle is 15 centimeters, what is the circumference of the circle in terms of Pi?
Nat2105 [25]
Circumference of a circle: 2 * Pi * R
1. Calculate radius from diameter.
Radius = Diameter/2
Radius = 15/2
Radius = 7.5cm

Formula to calculate the circumference:
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6 0
3 years ago
What does initial value mean?<br><br> (The topic matter is linear functions)
vagabundo [1.1K]
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I hope this was helpful and answered your inquiry! If you have any further doubts or questions, please let me know so that I can help you!
5 0
3 years ago
Consider a sequence whose first three
snow_tiger [21]

Answer:

Below, depends if 27 is term number 1 or term number 0.  Answered for both cases.  

Step-by-step explanation:

The most common sequences are arithmetic and geometric, so lets check those first.

Arithmetic first since its the easiest.

to go from 27 to 21 we subtract 6, if we subtract 6 from 21 again we get to 15, which is what we need, so it is indeed arithmetic.

Explicit formula is basically of the form of y=mx+b with an arithmetic sequence.  the m is the common difference and b is the first term minus the common difference.  so lets fill those in.  y = -6x + 33

Then it usually has n as the x and y f(n) so we'll just put those in

f(n) = -6n + 33

This si as long as the first term is labeled as term number 1 and not term number 0.  if you have 27 as term 0 instead just make 33 back to 27, so f(n) = -6n + 27

Let me know if this doesn't make sense.

5 0
3 years ago
.
Arturiano [62]
Correct me if I’m wrong but I’d go with
B). 34, 55
8 0
3 years ago
Read 2 more answers
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