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True [87]
3 years ago
8

A key code must contain 6 numerals. There are 10 numerals available. Using these numerals, how many different key codes maybe cr

eated?
A. 340
B. 210
C. 3,480
D. 151,200
Mathematics
1 answer:
shutvik [7]3 years ago
7 0
10/(10-6)=10/4.
(10*9*8*7*6*5*4*3*2*1)/(4*3*2*1)
Numbers that are in the numerator and denominator are cancelled out
10*9*8*7*6*5=151200 codes
* means multiply if you didn't know
The correct answer is D

Hope this helped :)
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Aleks [24]

Hello from MrBillDoesMath!

Answer:   factor = 4

Discussion:

Look at the sequence of numbers


1/64,  1/16,    1/4,    1,   4


It's seems clear that multiplying a term by 4 gives the next term in the sequence.


Thank you,

MrB

4 0
2 years ago
Please help me i have limited time and im confused
luda_lava [24]
The expected value is $8,000.
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2 years ago
the function 56-4y=-5x can be used to determine the total amount of money in a coin jar,y,after money is added for x days. what
notka56 [123]

Answer:

23

Step-by-step explanation:

4 0
2 years ago
F(x)=x find the graph of f(x)+3
Anastasy [175]
Given that f(x) = x.
Then f(x) + 3 is the graph of f(x) translated 3 units up.
8 0
3 years ago
Answer it answer it answer it
Usimov [2.4K]

Answer:

The correct option is;

C. 52.2 × 4.4 × 2 + 47.8 × 4.4 × 2

Step-by-step explanation:

The area of the square frame is the area of the inner square subtracted from the area of the outer square

Which gives;

52.2² - 47.8² = 440

Therefore;

Option A. 52.2² - 47.8² is a correct way of finding the area of the square frame

Option B. 2 × ((52.2×2.2) + (47.8×2.2)) = 440, is  a correct way of finding the area of the square frame

Option C. 52.2 × 4.4 × 2 + 47.8 × 4.4 × 2 = 880, is not a correct way of finding the area of the square frame

The error is the thickness is 2.2 not 4.4

Option D. 100×(52.2 - 47.8) = (52.2 + 47.8) × (52.2 - 47.8) = 52.2² - 47.8² = 440,  is  a correct way of finding the area of the square frame

5 0
3 years ago
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