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coldgirl [10]
3 years ago
13

Whats the perimeter ​

Mathematics
2 answers:
pav-90 [236]3 years ago
7 0

Perimeter is the distance around the shape.

Formula for rectangle  P = 2l + 2w

soldier1979 [14.2K]3 years ago
4 0
Perimeter of what????
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Rachel deposits $100 in a bank account and she gets 8% simple interest on it. Which linear model gives the return on her investm
Mandarinka [93]
The answer would be B because the 100 stays in there and you are adding 8% per year. Hope this helps.
3 0
3 years ago
The midpoint of segment AB is (6, 5). The coordinates of point A are (7, 10). Find the coordinates of point
gayaneshka [121]
Mx = (Ax + Bx)/2      My = (Ay + By)
 6  =   (7 + Bx)/2        5  = (10 + By)/2
 12 = 7 + Bx              10 = 10 + By
  5  =  Bx                     0 =    By

(5,0)
5 0
3 years ago
Melissa said that each member of her group completed 5/12 foot of a tower for a garden display. There were 3 members in her grou
Setler [38]
A) 5/12×3=1 1/4 I know this for sure
4 0
3 years ago
Read 2 more answers
Calculate pt3 such that a line from pt1 to pt3 is perpendicular to the line from pt1 to pt2, and the distance between pt1 and pt
Leni [432]
Let the point_1 = p₁ = (1,4)
and      point_2 = p₂ = (-2,1)
and      Point_3 = p₃ = (x,y)

The line from point_1 to point_2 is L₁ and has slope = m₁
The line from point_1 to point_3 is L₂ and has slope = m₂
m₁ = Δy/Δx = (1-4)/(-2-1) = 1
m₂ = Δy/Δx = (y-4)/(x-1)
L₁⊥L₂ ⇒⇒⇒⇒ m₁ * m₂ = -1
∴ (y-4)/(x-1) = -1 ⇒⇒⇒ (y-4)= -(x-1)
(y-4) = (1-x) ⇒⇒⇒⇒⇒⇒⇒⇒⇒⇒⇒⇒⇒⇒ equation (1)

The distance from point_1 to point_2 is d₁
The distance from point_1 to point_3 is d₂
d = \sqrt{Δx^2+Δy^2}
d₁ = \sqrt{(-2-1)^2+(1-4)^2}
d₂ = \sqrt{(x-1)^2+(y-4)^2}
d₁ = d₂
∴ \sqrt{(-2-1)^2+(1-4)^2} = \sqrt{(x-1)^2+(y-4)^2} ⇒⇒ eliminating the root
∴(-2-1)²+(1-4)² = (x-1)²+(y-4)²
 (x-1)²+(y-4)² = 18
from equatoin (1)  y-4 = 1-x
∴(x-1)²+(1-x)² = 18            ⇒⇒⇒⇒⇒ note: (1-x)² = (x-1)²
2 (x-1)² = 18
(x-1)² = 9
x-1 = \pm \sqrt{9} = \pm 3
∴ x = 4 or x = -2
∴ y = 1 or y = 7

Point_3 = (4,1)  or  (-2,7)












8 0
3 years ago
You can buy 3 sandwiches for 4:$4.95 or 4 sandwiches for $6.72.Which is a better buy?
elixir [45]
If you would like to know which one of the options is better to buy, you can calculate this using the following steps:

3 sandwiches ... $4.95
1 sandwich ... $x = ?
______________________
3 * x = 1 * 4.95       /3
x = 4.95 / 3 = $1.65


4 sandwiches ... $6.72
1 sandwich ... $y = ?
______________________
4 * y = 1 * 6.72     /4
y = 6.72 / 4 = $1.68

Result: You should buy sandwiches from the first option ($1.65 < $1.68 per unit).
7 0
3 years ago
Read 2 more answers
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