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Natalija [7]
2 years ago
5

Find the discriminant of 3x^2-10+-2

Mathematics
1 answer:
Dahasolnce [82]2 years ago
3 0

Step-by-step explanation:

y = 3x² - 10x - 2

a = 3

b = -10

c = -2

D = b² - 4ac

D = (-10)² - 4.3.(-2)

D = 100 + 24

D = 124

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Find the greatest common factor of 36 and 54
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Hey there!

To find the greatest common factor you will need to find all the factors of 36 and 54. (A factor is a number that can be divided into another number).

54 - 1, 2, 3, 6, 9, 18, 27.

36 - 1, 2, 3, 4, 6, 9, 12, 18.

As you can see here, the factor that is the greatest is 18. Therefore, that is your answer.

Hope this helps! :)

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3 years ago
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OLEGan [10]
I think it would be y=1x+(0-2)
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vampirchik [111]
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Elena-2011 [213]

Answer:

a = 36 and a = 27

Step-by-step explanation:

The geometric mean of two numbers is the square root of the product of the two numbers.

Say for example we have the numbers x and y, the geometric mean z is mathematically;

z = √xy

For the first question, our z is 12, x and y are 4 and a respectively.

12 = √4a

square both sides

144 = 4a

a = 144/4

a = 36

For the second question

z is 9, x and y are 3 and a respectively

9 = √3a

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81 = 3a

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5 0
2 years ago
The heart beats about 3 x 10° times during the lifetime of the average person. Which
Pani-rosa [81]

Answer:

3,000,000,000

Step-by-step explanation:

3 x 10^9 = 3 x 1,000,000,000 because if it were 10^1, then there would be 1 zero. Same thing for this. Since it's 10^9, there will be 9 zeroes.

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2 years ago
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