Mathematics, 26.06.2019 19:00, LuisTorres8966

Which of the following is the correct expanded form for the series below? o (7+3•1)+(7 +3-2)+(7 +3,3)+(7+34) o (7+1)+(7+2)+(7 +3)+(7+4) o (3-1)+(3-2) +(303)+(3-4)+7 o 3+32 +38 +34 +7

Which of the following is the correct expanded form for the series below? o (7+3•1)+(7 +3-2)+(7 +3,

Answers: 1

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Answers

answered: cesarcastellan9

Step-by-step explanation:

four terms are needed. 1-4

so that eliminates bottom 2 choices

answered: haileysolis5

The correct option is A) $(7+3\cdot 1)+(7+3\cdot 2)+(7+3\cdot 3)+(7+3\cdot 4)$ .

Step-by-step explanation:

Consider the provided series.

$\sum_{n=1}^{4}(3n+7)$

Substitute the value of n = 1,2,3 and 4 respectively.

$(3\cdot 1+7)+(3\cdot 2+7)+(3\cdot 3+7)+(3\cdot 4+7)$

Which can be written as:

$(7+3\cdot 1)+(7+3\cdot 2)+(7+3\cdot 3)+(7+3\cdot 4)$

Therefore, the correct option is A) $(7+3\cdot 1)+(7+3\cdot 2)+(7+3\cdot 3)+(7+3\cdot 4)$ .

answered: Guest

(2 x^3 + 7 x^2 + 5 x + 2)/(x (x + 2))

step-by-step explanation:

simplify the following:

x/x^2 + 3 x + 2 - (x (x + 1))/(x + 2)

combine powers. x/x^2 = x^(1 - 2):

x^(1 - 2) + 3 x + 2 - (x (x + 1))/(x + 2)

1 - 2 = -1:

x^(-1) + 3 x + 2 - (x (x + 1))/(x + 2)

put each term in 1/x + 3 x + 2 - (x (x + 1))/(x + 2) over the common denominator x (x + 2): 1/x + 3 x + 2 - (x (x + 1))/(x + 2) = (x + 2)/(x (x + 2)) + (3 x^2 (x + 2))/(x (x + 2)) + (2 x (x + 2))/(x (x + 2)) - (x^2 (x + 1))/(x (x + 2)):

(x + 2)/(x (x + 2)) + (3 x^2 (x + 2))/(x (x + 2)) + (2 x (x + 2))/(x (x + 2)) - (x^2 (x + 1))/(x (x + 2))

(x + 2)/(x (x + 2)) + (3 x^2 (x + 2))/(x (x + 2)) + (2 x (x + 2))/(x (x + 2)) - (x^2 (x + 1))/(x (x + 2)) = ((x + 2) + 3 x^2 (x + 2) + 2 x (x + 2) - x^2 (x + 1))/(x (x + 2)):

(2 + x + 3 x^2 (x + 2) + 2 x (x + 2) - x^2 (x + 1))/(x (x + 2))

3 x^2 (x + 2) = 3 x^3 + 6 x^2:

(2 + x + 3 x^3 + 6 x^2 + 2 x (x + 2) - x^2 (x + 1))/(x (x + 2))

2 x (x + 2) = 2 x^2 + 4 x:

(2 + x + 6 x^2 + 3 x^3 + 2 x^2 + 4 x - x^2 (x + 1))/(x (x + 2))

-x^2 (x + 1) = -x^2 - x^3:

(-x^2 - x^3 + 3 x^3 + 6 x^2 + 2 x^2 + 4 x + x + 2)/(x (x + 2))

grouping like terms, 3 x^3 - x^3 + 6 x^2 + 2 x^2 - x^2 + 4 x + x + 2 = (3 x^3 - x^3) + (6 x^2 + 2 x^2 - x^2) + (x + 4 x) + 2:

((3 x^3 - x^3) + (6 x^2 + 2 x^2 - x^2) + (x + 4 x) + 2)/(x (x + 2))

3 x^3 - x^3 = 2 x^3:

(2 x^3 + (6 x^2 + 2 x^2 - x^2) + (x + 4 x) + 2)/(x (x + 2))

6 x^2 + 2 x^2 - x^2 = 7 x^2:

(2 x^3 + 7 x^2 + (x + 4 x) + 2)/(x (x + 2))

x + 4 x = 5 x:

answer: (2 x^3 + 7 x^2 + 5 x + 2)/(x (x + 2))

answered: Guest

It is 5.8 you add all of the up to equat 180 then solve the equation
Need asap! brainliest and 15 points! triangle ghj has the exterior angles shown below.

Need asap! brainliest and 15 points! triangle ghj has the exterior angles shown below.

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Which of the following is the correct expanded form for the series below? o (7+3•1)+(7 +3-2)+(7 +3,...