Given an integer n 2 1, how many decimal strings of length n begin and end with the same digit? 2(10)"-1 – 10"-2 O 10" – 10(10)"–1 10"-1 None of these. O 10"–2

Q: how many integers from 1 to 1000 are multiples of 3 or 5 (or both)

A: We want to find number of integer from 1 to 1000 are multiples of 3 or 5 (or both)

Q: 2. Perform the indicated Integer operations. -2+(-3) = -4-(-5) = 1- (-2) +2 (-3) 2 (2-4) + (-4) 2-8=…

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Q: Evaluate. (32-22) + 2 O 10 O 10 O 5 O 5

A: use BODMAS to simplify the expression.

Q: Find a11 of A-1 Find a12 of A-1

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Q: n 21. if an+1 = an an 2n + 3 n=1

A: We have, an+1=n2n+3an Substitute value of n=0,1,2,3,4,..... At n=0, a1=020+3a0a1=0 At n=1,…

Q: If N=6+4+3+1+1/3N, then the value of N is?

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Q: Where does the 52 and 26 come from and why

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Q: person can encode 1000 words in every hour of typing job.which of the number n of hours that the…

A: Number of words the person can encode per hour=1000

Q: A state's licese plate has 7 characters. Each character can be a capital letter (A – Z), or a…

A: Number of license plates= (no .of arrangements of 3 capital letters )*(no. of arrangements of 4…

Q: 8x + 6 c² + 9x - 361] S[x² 3x

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Q: How many integers will there be on the number line between the numbers 2.09 and 15.3?

A: There will be 13 integers between 2.09 and 15.3 on the number line.

Q: . Verify the formula п(n + 1) 2 for n = 10, 50, and 100.

A: ∑x=1nx = n(n+1)2To verify the formula for n = 10, 50 and 100.

Q: 10. Find the sum of the coefficients of (2x– 3)°. c. -6560 d. -5120 а. -5660 b. -6780

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Q: How many 3-digit number can be formed from the digits 0,1,2,3  a. if no two digits are to be the…

A: * SOLUTION :-  from the given information the calculation is given below

Q: let a = 3^4 7^3 11^2 13^5 and b = 2^6 5^2 7^2 11^3 13^4 Determine the values of (a,b) and [a,b] and…

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Q: The 63 students in a classical music lecture class were polled, with the results that 38 like…

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Q: Let ab be a two-digit number. Now, swap its digits to form another two-digit number, multiply it by…

A: ab is a 2-digit number where, ab = 10a+b  When the digits of ab are swapped, we get the 2-digit…

Q: . n > 5 only if n > 7.

A: Given that n>5 only if n>7

Q: Find a21 of A-1 Find a22 of A-1

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Q: #5 Find An if n is a positive integer and A = 4 -3 - 2

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Q: (5x +3) (9x-33)

A: Since l and m are parallel Sum of co-interior angles = 180 5x+3+9x-33 = 180 14x = 180+30 x=210/14…

Q: ss the following as a factorial: 6 x 5 x 4 x 3x 2 x

A: The factorial function tells us to multiply all whole numbers down to 1 from the selected number.

Q: where did the 26 and 10 come from?

A: where did the 26 and 10 come from?

Q: Evaluate        5  -2 [ ∑ (n-2)2 ]      n=1

A: We know  ∑i=1n xi = x1+x2+ ⋯ + xn

Q: 3*4=5 9*1=2 6*4=2 9*3=0 Then5*8= ____?

A: Introduction: Pattern identification is a tricky part of mathematics. From the given numbers, first,…

Q: How many two digit numbers can be formed from the digits 1, 3, 7 and 9 when the digits are: (a) not…

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