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Grace [21]
3 years ago
8

How many different passwords are possible if each password consists of six characters where each character is either an uppercas

e letter, a lowercase letter, or a digit, and at least one digit must be included in the password?
Mathematics
1 answer:
irga5000 [103]3 years ago
4 0

<span><span>1,867,866,560</span><span>1,867,866,560</span></span><span>.</span>
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I need the answer pls help!
valina [46]

Answer:

x = ± 7

Step-by-step explanation:

Given

(2x - 1)(3x + 2) = x + 292 ← expand left side using FOIL

6x² + x - 2 = x + 292 ( subtract x from both sides )

6x² - 2 = 292 ( add 2 to both sides )

6x² = 294 ( divide both sides by 6 )

x² = 49 ( take the square root of both sides )

x = ± 7

That is x = - 7, x = 7

7 0
3 years ago
How do I solve this word problem?
OleMash [197]
The answer is A, or 13 because .03 + .03 = .06 and .32-.06=.26.0.26/.02 =13.
7 0
3 years ago
For the reaction 2Fe + O2 → 2FeO, how many grams of iron oxide are produced from 42.4 mol of iron?
Butoxors [25]

In the balanced reaction

2 Fe + O₂   →   2 FeO

2 moles of iron (Fe) react with 1 mole of molecular oxygen (O₂) to produce 2 moles of iron oxide (FeO). The ratio of Fe to FeO is 1-to-1, so if one starts with 42.4 mol of Fe, one will end up with the same amount of FeO, 42.4 mol.

Look up the molar mass of Fe and O:

• Fe = 55.845 g/mol

• O = 15.999 g/mol

Then the molar mass of FeO is approximately 71.835 g/mol, and so the mass of 42.4 mol of FeO is

(42.4 mol) × (71.835 g/mol) ≈ 3050 g

8 0
3 years ago
Which statement is true regarding DC current?
DerKrebs [107]
I think it's this answer <span>C.A high voltage current can be transformed into a low voltage current.</span>
6 0
3 years ago
Read 2 more answers
A ​used-droid dealership buys a droid for ​$2900 and then sells it for ​$4300. What is the percent​ increase?
Anna71 [15]

The percent increase is 48.28

Step-by-step explanation:

Given,

Purchase price of used-droid = $2900

Selling price of used=droid = $4300

Profit = Selling price - purchase price

Profit = 4300-2900 = $1400

Percent increase = \frac{Profit}{Purchase\ price}*100

Percent\ increase=\frac{1400}{2900}*100\\\\Percent\ increase=\frac{140000}{2900}\\\\Percent\ increase=48.275\%

Rounding off to nearest hundredth;

Percent increase = 48.28%

The percent increase is 48.28

Keywords: percentage, subtraction

Learn more about percentages at:

  • brainly.com/question/12148432
  • brainly.com/question/12223460

#LearnwithBrainly

8 0
3 years ago
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