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LenKa [72]
3 years ago
12

Which is a prime number? 19 22 18 15 ​

Mathematics
1 answer:
Savatey [412]3 years ago
8 0

Answer:

19

Step-by-step explanation:

You might be interested in
What two numbers have the product of -135 and the sum of 6?
Andrews [41]
Step 1: Find factors of 135 

1 and 135
3 and 45
5 and 27
9 and 15

Remember the rules for multiplication involving negatives:

Multiplying a negative with a negative will always be positive.
Multiplying a negative with a positive will always be negative. 

So in order for the product to be -135, one number of each factor pair will need to be negative. 

Step 2: Figure out which factor pair will add together to get the sum of 6
(Remember at least one from each pair will be negative)

Part A: 
1 + (-135) = -134
3 + (-45) = -42
5 + (-27) = -22
9 + (-15) = -6

Part B:
135 + (-1) = 134
45 + (-3) = 42
27 + (-5) = 22
15 + (-9) = 6

(Knowing that the sum of adding a larger negative number to a smaller positive number will be negative, will make this a bit faster because you would just skip to Part B) 

The sum of 15 and -9 is 6. So there is the answer.

You can also check it, just to make sure it's the correct answer.

15 × (-9) = -135
15 + (-9) = 6
4 0
3 years ago
Misha practices the guitar for 3 hours every day.
kakasveta [241]

Answer:

It is B. H = 3d

Step-by-step explanation:

I got it right :)

4 0
3 years ago
Read 2 more answers
Ariana’s annual(year) pay is $34,320. What is her average gross pay?
MArishka [77]

Answer:

9. $2,860 per month

10. $660 per week

11. $94 per day <u><em>(not 100% sure on this one, not sure if its getting techinical with working 5 days a week)</em></u>

Step-by-step explanation:

9. $34,320 divide by number of months in a year (12)

10. $34,320 divide by number of weeks in a year (52)

11. $34,320 divide by number of days in a year (365)

4 0
3 years ago
What do exponential functions model in the real world? How does the
sineoko [7]

They model various situations where there is an increasing curve. An example is if you throw a baseball and it curves back down as gravity has more and more of a affect on it. This would be a different equation than if you threw a basketball as the basketball wouldn't go as high but would have about the same downwards acceleration due to gravity.

3 0
3 years ago
Pls help i’ll give brainliest
finlep [7]

Answer:

1/5x12 and 12/5

Step-by-step explanation:

both are dividing by five or equal to 2.4 which is the same as 1/5 of 12

5 0
3 years ago
Read 2 more answers
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