Each character in a password is either a digit [0-9] or lowercase letter [a-z]. How many valid passwords are there with the given restriction(s)? Length is 20 and cannot start with a digit. Write ab as: arb

Q: I don't understand this question I need help solving it.

A: 2. Let x be the incomes are approximately normal distribution with mean $33,000 and standard…

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A: Given as, x¨= y˙ -1 . , y¨=-x-2      u=x˙ and v=y˙       u˙=x¨  v˙=y¨

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A: given number of people probability 1 0.25 2 0.32 3 ? 4 ? 5 0.07 6 0.03 7+ 0.01…

Q: Could you please solve c and d for me

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Q: Noah invests $3,600 for two years.   The account pays 0.43% monthly compound interest. To the…

A: Given the given invest=$3,600 Interest rate=0.43%(compounded monthly) Time=2 years Apply formula…

Q: I need help solving for parts a-c

A: The data is paired when the data is generated using the same subjects at two different conditions.…

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A: Given information: μ=151000σ=35000 n=77

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Q: In a test of the effectiveness of garlic for lowering cholesterol, 45 subjects were treated with…

A: a. The best point estimate is 5.4 mg/dL. The best point estimate for the population mean net change…

Q: why part b and c you not solved ?

A: Given in 1998 an advertising company announced a 1000 chips challenge. Given…

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Q: can you solve g, h, and j too please?

A: Part g)  We need to find the partition numbers of f''x To find partition numbers equate second…

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A: GIVEN: 6 - x - x2  if x ≤ 32x - 5         if x > 3

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A: Basic concept of discrete probability distribution are used

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Q: how do i solve this?

A: Given that: The table ,

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Q: cleared

A: We have to find the digit in thousand place  of the product.

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A: Topic - slope of function To find slope at a point ,take two points on the line and calculate slope…

Q: please answer part d as well. i dont see the solution anywhere here.

A: According to the given information in this question We need to answer part d

Q: Can you explain why you used the certain equations?

A: The solution given by an Expert is correct

Q: How do I solve this?

A: 1,2,3....,23,24,25 are called element of set S.  Hence, set S has 25 element which mean n(S) = 25…