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AysviL [449]
3 years ago
9

A randomly generated password has four characters. Each character is either A, B, C, D, E or F or a number from 0 - 9. Each char

acter in the password can only be used once. What is the probability that a password has only one number?
A. 5/182
B. 10/91
C. 9/91
D. 9/364
Mathematics
2 answers:
Monica [59]3 years ago
7 0

Answer:

The answer is B!!!

Step-by-step explanation:

NON

motikmotik3 years ago
3 0

Answer:

B. 10/91

Step-by-step explanation:

Total passwords:

16C4 × 4!

43680

Passwords with exactly one digit:

6C3 × 10C1 × 4!

4800

Probability

4800/43680

10/91

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What is the value of z in the equation 2(4z − 3 − 1) = 166 − 46?
shepuryov [24]

Refine 2(4z-3-1)

= 2(4z-4)

Refine : 166 - 16 = 120

therefore:

2(z-4) = 120

Divide both sides by  2 :

\frac{2(z-4)}{2} =  \frac{120}{2}

4z-4 = 60

add 4  to both sides:

4z-4+4 = 60+4

4z = 64

Divide both sides by 4 :

\frac{4z}{4} =  \frac{64}{4}

z = 16

hope this helps!


8 0
3 years ago
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If the area of the blue square is 25 in2 and the area of the green square is 15 points
galben [10]

Answer:

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Step-by-step explanation:

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3 years ago
Suppose y varies directly as x², and y = 160 when x = 4. Find y when x = 6.
labwork [276]

<u>Finding the constant of proportionality</u> :

  • y = kx²
  • 160 = k(4)²
  • k = 10

<u>Finding y when x = 6</u> :

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  • y = 10(36)
  • y = 360

The value of y is <u>360</u> when x = 6.

7 0
1 year ago
PLEASE ANSWER QUICKLY, WITH THE ACTUAL ANSWER!
GalinKa [24]

Answer:

b

Step-by-step explanation:

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