Write the sum using summation notation, assuming the suggested pattern continues. -4 + 5 + 14 + 23 + ... + 131

summation of the quantity negative four plus nine n from n equals zero to fifteen
summation of negative thirty six times n from n equals zero to fifteen
summation of the quantity negative four plus nine n from n equals zero to infinity
summation of negative thirty six times n from n equals zero to infinity

the last choice

step-by-step explanation:

2

step-by-step explanation:

the length of o'p' is .

step-by-step explanation:

it is given that the quadrilateral m'n'o'p' is the image of quadrilateral mnop after dilation.

the center of dilation is origin and the scale factor is 1.5.

in dilation the image and preimge are similar figures. it means the sides of image and preimage are proportional.

the scale factor is defined as

the scale factor is 1.5.

multiply both sides by op.

note: if the value of op is given, then multiply the value of op with 1.5 to get the length of side o'p'.

therefore length of o'p' is .

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step-by-step explanatio89