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Murrr4er [49]
3 years ago
5

A thief steals an ATM card and must randomly guess the correct five​-digit pin code from a 7​-key keypad. Repetition of digits i

s allowed. What is the probability of a correct guess on the first​ try?
Mathematics
1 answer:
bearhunter [10]3 years ago
3 0

Answer:

1 in 16,807 chance or a 0.00595% chance

Step-by-step explanation:

There is only one correct 5-digit pin that the thief must guess. If there are 7 possible values for each of the five digits, the total number of combinations is:

n = 7*7*7*7*7\\n= 16,807\ possibilities

Therefore, there is a 1 in 16,807 chance or a 0.00595% chance that the thief will guess on the first try.

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Write the vector YZ in component form.<br> Y(-9, 2) Z(3, -4)
Temka [501]

Answer:

\displaystyle \overrightarrow{YZ} = \

General Formulas and Concepts:
<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
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  • Left to Right

<u>Algebra I</u>

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<u>Pre-Calculus</u>

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  • Component Form: \displaystyle \overrightarrow{XY} = \

Step-by-step explanation:

<u>Step 1: Define</u>

<em>Identify.</em>

Point Y(-9, 2)

Point Z(3, -4)

<u>Step 2: Find</u>

  1. Substitute in points [Vector Component Form]:                                        \displaystyle \overrightarrow{YZ} = \
  2. [Order of Operations] Evaluate:                                                                  \displaystyle \overrightarrow{YZ} = \
6 0
2 years ago
the 5th and 6th grade students at jackson middle school are going on a field trip. there are 6 classes in the fitth grade, and e
Mariulka [41]
No because there are 20 multiplied by 3 is 60. So the answer would be 60+144=204x12=2448 but the last answer was still correct
4 0
2 years ago
if tom has 6 apple and he gave his mom 3 apple and and she made a apple pie how many apple are left. ​
ch4aika [34]

Answer:

depends, if he has 6 then he still has 6

if he gave her 3 of his six, then ate the pies, he has 3

Step-by-step explanation:

5 0
2 years ago
Explain what the acronym PEMDAS means and how you use it when evaluating expressions.​
netineya [11]
It mean Parentheses-exponents-multiplication/division-addition/subtraction and it is the order you do multi step equations
4 0
2 years ago
12 grapes cost 90 $how many can bought in 40$
likoan [24]

Let x = the amount of grapes that can be bought for 0.40.


Note: By 90 I assume you mean 90 cents. The same for 40.


12/x = 0.90/0.40


0.90x = 12(0.40)


0.90x = 4.80


x = 4.80 ÷ 0.90


x = 5.33333


We can round the decimal to the ones place to get 5 grapes.




4 0
3 years ago
Read 2 more answers
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