Find the formula the represent each arithmetic sequence. (Solve) A) a3=8 , d=3 B) a7=-4 , d= -2 C) a12=85 , d=5

Q: The sum of n terms of a A.P. is -45 the first term is 2.5 and the common difference is -0.5. Find n

A: Given that the first term of A.P. is a=2.5 and the common difference is d=-0.5. Also, the sum of n…

Q: (b) Ten times the sum of nine and seven

A: Solved given problem follow step below.

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Q: How would you explain sequence

A: This question can be solved using the concept of sequence and series.

Q: 2) B=(4,-√6,-10, 0, 7 Integers A) 4,0 2, 2, 1.7, √ 4 B) 4,-10,

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A: It is an important part of statistics. It is widely used.

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Q: To find the sum , first add 2+3 ?

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Q: 6x= 67

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A: Simple equation

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A: Disclaimer: Since you have asked multiple questions, we will solve the first question for you. If…

Q: the sum of the first 7 terms if a1=¼, r=-4

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Q: Which number completes the Pythagorean Triple of 9, 12, x?

A: Pythagorean triple of 9, 12, x

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Q: 1. If_f(x)=(x-1)(2x+3), find the value of f(5) . A. 7 B. 5 C. 52 2. If f(x)=, find the value of…

A: To find values of functions: