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marysya [2.9K]
3 years ago
9

I need to simplify the circled questions and explain how I got my answers.

Mathematics
2 answers:
artcher [175]3 years ago
8 0
7) 2^3 / 2(3+5)
8/2(5)
4/5
.8

10) 8(4-1) x 4
8(3) x 4
24x4
96

12) 9^2 (1+1) + 7
81 (2) + 7
162+7
169

14) 8^2 -1 +4 /2
64-1+4/2
67/2
33.5

18) 11^2 + 2^3 -3 x 4
121 + 8 - 3 x 4
129 -12
117
postnew [5]3 years ago
6 0

#7 2^3÷2(3+2) 2^2×(3+2) 4×5 20

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Given a point on a line and the equation of a parallel or perpendicular line, write the equation of the line in point-slope form
Arlecino [84]

Answer: y - 5 = 0(x - 1)

==================================================

Explanation:

Recall that point slope form in general is written as such

y - y1 = m(x - x1)

where,

m is the slope

(x1,y1) is the point the line goes through

The given equation y = 7 can be written as y = 0x+7. So we see that this line has a slope of m = 0

Plug m = 0 along with the given point (x1,y1) = (1,5) into the point slope equation and we get

y - y1 = m(x - x1)

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which is the final answer

note: the equation in bold can be rearranged and simplified to get y = 5; however your teacher seems to want the answer in point-slope form, so we leave it as such.

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