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DedPeter [7]
3 years ago
10

For each of the following, use the given information/picture to write an equation in point-slope form. Just the ones that have t

he yellow highlight.

Mathematics
1 answer:
Delvig [45]3 years ago
7 0

Answer:

4. y = -x + 8

9. y = 3/2x + 15

16. y = 1/2x -5

20. y = -3/5x + 16

13. y = -1/2x + 1

14. y =  3/4x - 2

Step-by-step explanation:

4. 5=3(-1)+b = 8

9. 6=-6(3/2)+b=15

16. \frac{1--2}{12-6} =\frac{3}{6} = \frac{1}{2}

     -2= (1/2)6 + b = -5

20. \frac{19-13}{-5-5}= -\frac{6}{10} =-\frac{3}{5}

     19 = -3/5(-5) + b = 16

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In the sequence s of numbers, each term after the first two terms is the sum of the two immediately preceding terms. what is the
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Sn=n/2 (2a1 +(n-1)d)

[s5= 5/2 (2a1 +(5-1)d) = 5a1+10d]

s6=3(2a1+5d) = 6a1+15d
s4=2(2a1+3d) = 4a1+6d

6a1+15d -(4a1+6d) = 5 -----(1)

s7=7/2(2a1+6d) =7a1+21d

6a1+15d + 7a1+21d = 21 -----(2)

(1) 2a1+9d=5 -----(3)
(2) 13a1+36d=21 ----(4)

(3)*4 ; 8a1+36d=20 ----(5)
(4)-(5) 5a1 = 1
so a1 = 1/5

(3) 2a1+9d=5
2(1/5)+9d = 5
9d = 5-2/5 =23/5
d = 23/45


so [s5= 5/2 (2a1 +(5-1)d) = 5a1+10d = 5(1/5) + 10(23/45) = 1 + 5.11 = 6.11 ]

i'm not sure about the answer but the process is correct
6 0
3 years ago
Four books, one each on physics, chemistry, mathematics, and biology are about to be stacked on a shelf. If the books are stacke
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8 0
3 years ago
8(4y-2) +10y= (2y+14) +3(y+27)
love history [14]

Answer:

y=3

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
3 (x - 4) = 5 + 3x + 2
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3x-12= 3x + 7
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