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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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goldfiish [28.3K]

Answer:

p=0.125

Step-by-step explanation:

2p+6p=1

Add like terms

8p=1

Divide both sides by 8 to get p by itself

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p=0.125

7 0
3 years ago
Show some work please or an explanation please. I'll give out brainlest.<br><br> 3x + 5 = -x -7
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Step-by-step explanation:

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7 0
3 years ago
Read 2 more answers
Alberto’s monthly income is $3,200. Part of Alberto’s monthly budget is shown in the table.
Sladkaya [172]

Using the percentage concept, it is found that 40% of Alberto’s income is used to pay for his rent and groceries.

<h3>What is a percentage?</h3>

The percentage of an amount a over a total amount b is given by a multiplied by 100% and divided by b, that is:

P = \frac{a}{b} \times 100\%

In this problem:

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  • He spends 896 + 384 = $1280 in rent and groceries, hence a = 1280.

Then, the percentage is given by:

P = \frac{1280}{3200} \times 100\% = 40\%

More can be learned about the percentage concept at brainly.com/question/10491646

7 0
2 years ago
What is 17/21 - 2/10 = ___ - ___ = ____
umka2103 [35]

Step-by-step explanation:

step 1. 17/21 - 2/10 = x (in order to subtract you need a common denominator)

step 2. (17/21)(10/10) - (2/10)(21/21) = x

step 3. 170/210 - 42/210 = x

step 4. 128/210 = 64/105 = x

step 5. x = 64/105.

5 0
2 years ago
3x^2(4x^3-2x^2+7x-4)
Lunna [17]

▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄

<h3>>> Given Question :</h3>

3x²(4x³ - 2x² + 7x - 4)

<h3>>> Required Solution :</h3>

12x⁵ - 6x⁴ + 21x³ - 12x²

▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄

6 0
3 years ago
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