Use summation notation to denote the operation shown given the set of X ={3, 7, 4, 2, 5} Do not calculate the answer, just put the statement into summation form:   7(3+7+4+2+5)

Q: Find the sum. -7 + (-11) + (-15) +...+ (-39)

A:

Q: 1+2*5

A:

Q: -4-3|4-4*2|

A: This is a basic question including a modulus function. in this |4-4*2|=|4-8|=|-4| Modulus function…

Q: Simplify each expression. 1) (-3.x* + x²)+ (6x² - 2x + x*) 2) (5n + 2n*) - (4n³ – 4n* – 7n)

A:

Q: 12x-48 ei-ーe

A:

Q: Use the formula for the sum of the first n integers to evaluate the sum given below, then write it…

A:

Q: -4(9-7)

A: We simplify the expression              −4(q−7)by distributing -4 through the…

Q: The partial sum - 2 + (-4) + (-8) +...+(-256) equals

A:

Q: Find x. *: (62-5x) 133 1.

A: Theorem  The sum of opposite angles in cyclic quadrilateral is supplementary (180°)

Q: Number of zeros at the end of 26!is, (a) 5 (b) 6 (c) 7 (d) 8

A: .

Q: (+2)(z-3) (2z-1)(+5 (2a-1)(2+2) (r-3)(x-4)

A:

Q: 8 + 7(42 - 3)

A: 8 + 7(42 - 3) = ?

Q: nvert

A:

Q: Find the sum: −3+−8+−13+...+−63-3+-8+-13+...+-63

A:

Q: There are r rows of chairs with 10 chairs in each row. Write an expression that shows the number of…

A:

Q: Find the sum: -9 + – 10 + – 11 + ... + – 15

A: it is an A.P. with a= -9 , d= (-10+9) = -1  Last term = -15  No. Of terms =n = 7

Q: 42 -3 (4- 3)2 Evaluate:

A: The given expression is,

Sequence and Series

A sequence is defined as a collection of things. Series is defined to sum the things one by one in the sequence.  It was invented by German mathematician Carl Friedrich Gauss.