PLEASE HELP Given the sequence in the table below, determine the sigma notation of the sum for term 4 through term 15. n an 1 5 2 −10 3 20 the summation of 5 times negative 2 to the n minus 1 power, from n equals 4 to 15 the summation of 5 times negative 2 n, from n equals 1 to 15 the summation of 5 times negative 2 to the n plus 1 power, from n equals 4 to 15 the summation of 5 times negative 2 times n to the n plus 1 power, from n equals 1 to 15

I don’t know the answer I just need some points to ask more questions

Step-by-step explanation:

e.

step-by-step explanation:

because there are always 10 numbers in a phone number.

x ≥ 18 is your answer

step-by-step explanation:

let "a number" = x

(2/3)x + 17 ≥ 29

isolate the variable (x). do the opposite of pemdas (parenthesis, exponent (& root), multiplication, division, addition, subtraction).

first, subtract 17 from both sides.

(2/3)x + 17 (-17) ≥ 29 (-17)

(2/3)x ≥ 29 - 17

(2/3)x ≥ 12

next, multiply 3/2 to both sides to isolate the x

(3/2)(2/3)x ≥ 12(3/2)

x ≥ 12(3/2)

simplify. multiply, then divide

x ≥ (12 * 3)/2

x ≥ (36)/2

x ≥ 18

x ≥ 18 is your answer

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