6. If x is any positive integer, which one of the following terms could be added to the sum of 2x + 3x + 4x + 6x so that the new sum would be divisible by 7? (A) 3x (B) 4x (C) 5x (D) 6x (E) 7x

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Q: 6. A. Show that 81 – x²dx : 81n %3| 4

A: According to company rule we can answer only first question and rest can be reposted

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Q: 4 Get rid of anyth 5. Get rid of any multiplication or division 15 - 2x = -7x 1. a+9=4a 13 SK 3. 3.…

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Q: (a) In (x - 3) = 7 (b) In (x + 4) + In (x- 4) = 1

A: Given(a) In(x-3) = 7(b) In(x+4) +In(x-4) =1solve for x(a) In(x-3) = 7In(x-3) =7take Ine  both…

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A: The objective is to prove the given statement using induction

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Q: How many terms are there in the expansion of (4.x + 7y)0.+ (4x- 7y)10 ?

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Q: If 6-digit positive integer is added to a 6-digit positive integer , the sum could have A) 5 digits…

A: A detailed solution is given below.

Q: Prove by cases that n2−1 is divisible by 3 when n is an integer not divisible by 3.

A: The detailed solution is given below Thank you

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A: Solve the given problem.

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A: To show x2 + 9 is prime.

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Q: find rref 2 6 -4 0 1 2 -3 6 8 3 2 5

A: NOTE: Refresh your page if you can't see any equations. . the given matrix is now convert into…

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A: We prove this by induction.

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Q: Use a combinatorial argument to show that n 1(n 3 |

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Q: 4. Use a combinatorial argument to show that () n 1 -2) n + 22 n 2 3 -

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Q: 6. Determine. 2r - 3x 4x SET A.

A: I have stated the used formula in the solution

Q: 2. Show that if 8=(AB)- then - > N - - (AB)² + (aß)² – (αB)² – (AB)² = [(A) − (α)] [(B) − (ß)] +…

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Q: 14. Perform the indicated operations. (3x² - 9) + (3x² + 4x + 9) - ( - 6x² + 4)

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Q: 22. Divide by (*- k): -6x-16x-5x +9 *--2. O -6x - 4x+3R 3 O -6x -4x +3 O -6x -4x + 3x R 3 -6x-4x +3x…

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Q: A boy imagined a four-digit multiple of 5 with different digits. If the first digit is erased, the…

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Q: Show that 2^n &gt;=1/8 for n&gt;= -3.

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Q: composite. 10. Suppose that n = 2³ x 5² × 7 × 17³. Give the prime factoriz= (Hint: Do not work too…

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