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Verizon [17]
3 years ago
11

Find an equation of the line L. L is perpendicular to y=-2x and is passing through points 2,-4

Mathematics
1 answer:
galina1969 [7]3 years ago
6 0

slope of line y= -2x is -2

slope of line L= (-1)reciprocal of slope line y= -2x.

=( -1)(-1/2)

=1/2

since the L passes through (2,-4),

equation of line L: y-(-4)= 1/2(x-2)

2y+8 = x-2

x-2y-10=0

Hence equation of line L is x-2y-10=0

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A section of road covers 18.3 square feet. Each square foot will require 5.1 minutes to repair.
Salsk061 [2.6K]

Answer:I think it’s 61 minutes

Step-by-step explanation:

8 0
3 years ago
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The width of a rectangular rug is 4 1/4 inches longer than twice its length. If the perimeter of the rug is 56 1/2 inches, which
olga_2 [115]

The question requires calculating the perimeter of the rectangular r ug

The equation which represent the situation is 113/2 = 6x + 34/4 and length is 8 inches and width is 20 1/4 inches

Given:

let

length of the rectangular r ug = x inches

Width of a rectangular r ug = <em>(2x + 4 1/4) inches</em>

Perimeter of the r ug = 56 1/2 inches

<em>Perimeter of the r ug = 2(length + width)</em>

56 1/2 = 2{x + (2x + 4 1/4)

113/2 = 2(x + 2x + 17/4)

113/2 = 2(3x + 17/4)

113/2 = 6x + 34/4

113/2 - 34/4 = 6x

(226-34) / 4 = 6x

192/4 = 6x

48 = 6x

divide both sides by 6

x = 48/6

x = 8 inches

So,

length of the rectangular r ug = x inches

= 8 inches

Width of a rectangular r ug = (2x + 4 1/4) inches

= 2(8) + 4 1/4

= 16 + 4 1/4

= 20 1/4 inches

Therefore, the equation which represent the situation is 113/2 = 6x + 34/4 and length is 8 inches and width is 20 1/4 inches

Read more:

brainly.com/question/10452031

7 0
3 years ago
Someone answer ASAP!!! 15 points
IceJOKER [234]

Answer:

maybe you should add the question and someone could help you out

Step-by-step explanation:

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8 0
3 years ago
Pwese<br><br><br> Math suks lol and I didn't learn this
RUDIKE [14]

Answer:

y = 1/9 x z^3

Step-by-step explanation:

y is jointly proportional to x and z^3

y = k * x * z^3 where k is the constant of proportionality

y =12, x = 4 and z =3

12 = k * 4 * 3^3

12 = k * 4 * 27

12 = k * 108

12/108 = k

1/9 = k

y = 1/9 x z^3

8 0
3 years ago
In APQR, P = 83°, p = 285 m, r = 216 m.<br>Calculate R.​
vladimir1956 [14]

Answer:

48.8°

Step-by-step explanation:

We solve using sine rule

The formula is given as

p/sin P = r/sin R

In APQR, P = 83°, p = 285 m, r = 216 m.

Calculate R.

Hence, solving for R

285/sin 83 = 216/sin R

Cross Multiply

285 × sin R = sin 83 × 216

sin R = sin 83 × 216/285

R = arc sin (sin 83 × 216/285)

R = 48.78527°

Approximately = 48.8°

Therefore, R = 48.8°

5 0
3 years ago
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