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Tasya [4]
3 years ago
8

Using the given information, find the sum of each arithmetic series. 12. a, = 6 d = 7 n = = 12 S 12​

Mathematics
1 answer:
Naya [18.7K]3 years ago
3 0

Answer:

Step-by-step explanation

We need to have more infomation to finish this problem completely

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The length of a room is 4 feet less than twice its width. The perimeter of
AlladinOne [14]

L=2W-4

PERIMETER=2L+2W

58=2(2W-4)+2W

58=4W-8+2W

58=6W-8

6W=58+8

6W=66

W=66/6

W=11 ANS. FOR THE WIDTH.

L=2*11-4

L=22-4

L=18 ANS. FOR THE LENGTH.

PROOF:

58=2*18=2*11

58=36+22

58=58

5 0
3 years ago
SOMEONE PLZZZ ANSWER THIS IM VERY BAD AT THIS!!
Furkat [3]

Answer:

Step-by-step explanation:

A. Linear- the add up to 180

B. 3x-5+2x+3+4x+2=180

   9x=180

    x=20

C. plug x in

   ABD- 55, DBK- 82, KBC- 43

7 0
3 years ago
Graph the line with slope<br> −1/2<br> and y-intercept 3.
joja [24]

Step-by-step explanation:

m=-1/2

b(0,3)

mark (0,3)then go down 1 and 2 to the right as in positive side

6 0
3 years ago
manav needs 40% marks to pass. if he secures 208 marks and falls short by 16 marks what was the maximum marks he could have got​
Dominik [7]

Answer: the max marks he could have gotten are 224

Step-by-step explanation: 208+16=224.

7 0
3 years ago
What is the equation of a line that passes through the points (-3, 4) and (2,8)?
ziro4ka [17]

Given that the line passes through the two points (-3,4) and (2,8)

We need to determine the equation of the line.

<u>Slope:</u>

The slope of the line can be determined using the formula,

m=\frac{y_2-y_1}{x_2-x_1}

Substituting the points (-3,4) and (2,8) in the above formula, we get;

m=\frac{8-4}{2+3}

m=\frac{4}{5}

Thus, the slope of the line is m=\frac{4}{5}

<u>Equation of the line:</u>

The equation of the line can be determined using the formula,

y-y_1=m(x-x_1)

Substituting the point (-3,4) and m=\frac{4}{5} in the above formula, we have;

y-4=\frac{4}{5}(x+3)

y-4=\frac{4}{5}x+\frac{12}{5}

     y=\frac{4}{5}x+\frac{12}{5}+4

     y=\frac{4}{5}x+\frac{32}{5}

Thus, the equation of the line is y=\frac{4}{5}x+\frac{32}{5}

6 0
3 years ago
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