How many positive integers less than 10000 are there which contain at least one 7 or at least one 9 (or both)? The answer is

Q: My question is The product of two integers will have the same sign as the quotient of the two…

A: The given statement is true always ,becauseLet take two numbers x and yCase I x and y both are…

Q: Select two positive integers a and b with 5 <  a  ≤  20  and 5  <  b ≤  20.

A:

Q: what integer is closer to 6

A: given: the integer is six.

Q: the fourth power of an integer is x, and x is between 100 and 600. What is x?

A: It is given that the fourth power of an integer is x.That is, x = n^4, where n is a positive…

Q: How many zeros does 25! end with?

A: A number will have trailing zeros when 5 and at least one even number are factors of it.   Also, the…

Q: Show that if n is any integer, then 3 divides n3 − n

A: To prove:  if n is any integer, then 3 divides n3 − n. Concept used: Here we shall use the identity:…

Q: Find integers ? and ? such that 3220? + 6006? = gcd(3220,6006).

A: Remark: The greatest common divisor (gcd) of two integers is the greatest integer that divides both…

Q: Determine whether the statement is true or false, "3 is an even integer and 3 is less than 5."

A:

Q: 1. Find the number of zeroes at the end of 100!

A: Introduction :Here, we have asked for the number of zeros at the end of 100 !

Q: For each positive integer n, find the number of positive integers that are less than 210n which are…

A: ANSWER :

Q: How many numbers between 1 and 10000 have the digits 1,3, and 5 such that each digit appears exactly…

A: Here Numbers between 1 and 10,000 have digits 1,3,5 and each appears exactly once only

Q: What is the smallest integer n for which 25n&gt;512?

A: The provided expression is as follow:

Q: Any n consecutive integers will include a number that is divisible by n.

A:

Q: "find A2, A−2, and A−k (where k is any integer) by inspection."

A: NOTE: Refresh your page if you can't see any equations. . use the diagonal matrix formula

Q: If product of two consecutive odd integers is 63, then the integers are: 7, 9 9, 11 7, 11 7, 13

A:

Q: Which integers leave a remainder of 1 when divided by 2 and also leave a remainder of 1 when divided…

A:

Q: How many distinct four-digit integers can one make from the digits 1,3,3,7,7, and 8?

A: How many distinct four-digit integers can one make from the digits 1,3,3,7,7, and 8?

Q: See below. Find a + b + c. C sin 5adr a COS 56 - cos 5¤ + 5ædg -cos 5x + K %3D Your answer

A:

Q: that if 3 divides the sum of the digits of n, then 3|n

A:

Q: Show that every odd integer is the sum of two consecutive integers

A:

Q: Which statement is true for the values of P and Q on this number line? + -5 -4 -2 F1 1 A (B) PxQ 4…

A:

Q: Prove by induction that 1.3.5 (2n − 1) - 2.4.6. (2n) . 1 √n +1

A:

Q: For all numbers that are a multiple of 6 and less thar or equal to 100, what fraction of them are…

A: For the given statement

Q: For all integers a, b and c, if a divides b and a divides c, then a divides (4b - 3c). True False

A: Answer is TRUE

Q: If a, b, c all are distinct positive numbers then (a + b) (b + c) (c + a) is

A: