***HELP NEEDED ASAP ANSWER PLEASE*** Use sigma notation to represent the sum of the first seven terms of the following sequence: −4, −6, −8, …

A: the summation from n equals one to 7 of quantity negative 2 minus 2 times n

B: the summation from n equals one to 7 of quantity negative 4 plus 2 times n

C: the summation from n equals one to 7 of quantity negative 2 minus 4 times n

D: the summation from n equals one to 7 of quantity negative 2 plus 2 times n

This is FLVS exam... help ASAP.

-4, -6, -8, -10, -12, -14, -16

Step-by-step explanation:

option 1 is correct.

step-by-step explanation:

y varies inversely with x and constant of variation is 4

the equation will be:

y = k/x

where k =4 so,

y = 4/x

if we put values of x of option 1 in the above equation and find values of y

y = 4/-2 => y =-2

y = 4/-1 => y = -4

y = 4/1 => y = 4

y = 4/2 => y =2

so, all the values of x and y are correct.

if we put values of x given in other options and find value of y we cannot find whole table satisfying the equation.

hence option 1 is correct.

14 ft 7 inches

step-by-step explanation:

since each model inch corresponds to 25 real inches, 7 model inches will correspond to

7×25" = 175"

at 12" per foot, that is 14 feet, 7 inches.