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lara31 [8.8K]
3 years ago
6

A line passes through (1, –5) and (–3, 7).

Mathematics
1 answer:
Brilliant_brown [7]3 years ago
5 0
Slope of the line =(7- -5) / (-3-1) = 12 / -4 = -3

a. point slope form is y + 5 = -3(x - 1)  Answer

b  rearrange to slope-intercept form:-
 y = -3x + 3 - 5
y = -3x - 2  Answer
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18, 26, 34, 42, find the 52nd term and the explicit formula
daser333 [38]
We have 26 - 18 = 8; 34 - 26 = 8; 42 - 34 = 8; (an arithmetic progression)
We use the formula an = a1 + (n-1)x8 (the explicit formula)
So, an = 18 + (n-1)x8 ;
Then, an = 8n + 10;
Finally, a52 =  8x52 + 10 = 426 (the 52nd term);


3 0
3 years ago
The answer to question 21 please??
Ad libitum [116K]

Answer:

A = 1/2*(2 + 8)*4 + 1/2*(8 + 7)*2 = 35

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5 0
2 years ago
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If x equals 3 calculate the value of 2x squared plus x
Korolek [52]
2 × 3 = 6
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Hope this helps!
6 0
2 years ago
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7/12 × 6\14 please help
Mama L [17]
7/12*6/14
  7*6=42
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6 0
2 years ago
2x+3y=9<br> 2x+y=7<br> simultaneous equation
Marat540 [252]

Answer:

x=3 and y=1

Step-by-step explanation:

subtract equation 2 from 1

then (2x+3y) -(2x+y) =9-7

2x-2x+3y-y =2

2y=2 therefore y=1

substitute y value in 2x+y=7

2x+1=7

2x=7-1

2x=6

x=3

3 0
3 years ago
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