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swat32
2 years ago
13

Solve 18 and 19 please

Mathematics
1 answer:
riadik2000 [5.3K]2 years ago
5 0

Answer:

Step-by-step explanation:

18.

slope of line y=2x-5 is 2

slope of line ⊥ to y=2x-5 is

m=-1/2

eq. of reqd. line through (10,6) with slope -1/2 is

y-6=-1/2(x-10)

multiply by 2

2y-12=-x+10

2y+x=10+12

2y+x=22

2y=-x+22

y=-1/2x+11

19.

slope of line y=12x+5,m=12

eq. of line through (5,2) with slope 12 is

y-2=12(x-5)

y-2=12x-60

y=12x-60+2

y=12x-58

compare with y=mx+b

b=-58

You might be interested in
X^2 = 1/100, what is x​
Contact [7]

X in (-oo:+oo)

X^2 = 1/100 // - 1/100

X^2-(1/100) = 0

X^2-1/100 = 0

1*X^2 = 1/100 // : 1

X^2 = 1/100

X^2 = 1/100 // ^ 1/2

abs(X) = 1/10

X = 1/10 or X = -1/10

X in { 1/10, -1/10 }

6 0
3 years ago
Read 2 more answers
Plz help when you see this
kolezko [41]

Answer:

126

Step-by-step explanation:

angle ZWY = 180 - 90 - 63 = 27

Base on the given information, the length of XW is same with the length of ZW, which means they have the same angle.

Quadrangle has angle of 360

360(quadrangle) - 27(ZWY)- 27(XWY) - 90(WZY) - 90(WXY)

= 126

5 0
2 years ago
-2(n+3)+3n please help it’s do in less than 8 hours
saveliy_v [14]

Answer:

n - 6

Step-by-step explanation:

Firsly, break the bracket and you will get:

-2(n+3)+3n

= -2 * n + 3 * (-2) + 3n

= -2n + (-6) + 3n

= -2n + 3n - 6

= n - 6

Hope this helped :3

6 0
3 years ago
How do u solve 2/8=4
timofeeve [1]

Answer:

8/8 (then entire number) is 16

Step-by-step explanation:

4/2 = 2

2x8=16

so 8/8=16

8 0
4 years ago
Read 2 more answers
Devaughn is 8 years older than Sydney. The sum of their ages is 64. What is Sydney's age?
Zigmanuir [339]

Answer:

Sydney's age is 28

Step-by-step explanation:

Let Devaughn be D

And Sydney be S

D=S+8..... equation 1

D+S=64...... equation 2

Substitute equation 1 to equation 2

S+8+S=64

2S+8=64

2S=64-8

2S=56

S=56/2

S=28

Hope it helps

Good luck

8 0
3 years ago
Read 2 more answers
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