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Lera25 [3.4K]
3 years ago
13

How many four letter passwords can be created if no repetition is allowed?

Mathematics
1 answer:
Shkiper50 [21]3 years ago
8 0

Answer:

840

Step-by-step explanation:

7*6*5*4=840

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What is the greatest common factor of 6a²b3 + 15ab^5– 9a^3b^2??
Roman55 [17]

Answer:

3ab^2

Step-by-step explanation:

Factor 6a^2b^3

= 2 * 3 * a * a * b * b * b

Factor 15ab^5

= 3 * 5 * a * b * b * b * b * b

Factor 9a^3b^2

3 * 3 * a * a * a * b * b

Common Factor

= 3 * a * b * b

Simplify

= 3ab^2

5 0
3 years ago
Please help me out..
Firdavs [7]
I think it’s B I’m sorry if I’m wrong
8 0
3 years ago
Please help me ASAP i give brainliests and thanks :)
Firdavs [7]

Answer:

Positive

Step-by-step explanation:

Since there are two x-intercepts, -2 and 2, there is a positive discriminant. If the parabola was below the x axis and opened downwards, the discriminant would be negative.

4 0
3 years ago
Read 2 more answers
(Please 75 points if answerd need this is 1 min)
chubhunter [2.5K]

Answer:

(5,-4)

Step-by-step explanation:

If reflected over the x-axis, the quadrilateral would be in the fourth quadrant. N' would be at (1,-1) and P' at (6,-1). To reflect, look at the y-coordinate of the point and turn it to negative. With point Q, it's at (5,4) so we just flip the 4 to -4 and that's our point! (5,-4)

8 0
2 years ago
Write an equation for this model and solve for `x`
WARRIOR [948]
The equation is -5x = 4

x = -0.8

4 0
2 years ago
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