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LenaWriter [7]
3 years ago
12

If a side of a square is 1/2 ft long what is the perimeter of the square

Mathematics
1 answer:
ruslelena [56]3 years ago
5 0
Perimeter is the sum of the length of all sides. A square has 4 sides with equal sides. So the perimeter = 4*1/2ft =2ft
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Find a parametrization of the line in which the planes x + y + z = -6 and y + z = -8 intersect.
rewona [7]

Answer:

L(x,y) = (2,-8,0) + (0,-1,1)*t

Step-by-step explanation:

for the planes

x + y + z = -6  and y + z = -8

the intersection can be found subtracting the equation of the planes

x + y + z - ( y + z ) = -6 - (-8)

x= 2

therefore

x=2

z=z

y= -8 - z

using z as parameter t and the point (2,-8,0) as reference point , then

x= 2

y= -8 - t

z= 0 + t

another way of writing it is

L(x,y) = (2,-8,0) + (0,-1,1)*t

6 0
3 years ago
Solve the quadratic by factoring.<br> x^2-5x-31=5
torisob [31]

Answer:

x =  - 4\: or \: x =  9

Step-by-step explanation:

make one side equal to zero:

{x}^{2}  - 5x - 36 = 0

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{x }^{2}  - 9x + 4x - 36 = 0

factorise

x(x - 9) + 4(x - 9) = 0

(x + 4)(x - 9) = 0

solve for x

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5 0
3 years ago
A triangle has the following side lengths: x - 2, x, and 3x + 1. Another triangle has the following side lengths: 2x - 5, x + 4,
notka56 [123]

we know that

Perimeter of a triangle is equal to

P=a+b+c

where

a,b and c are the length sides of the triangle

<u>Find the perimeter of the triangles</u>

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P=(x-2)+(x)+(3x+1)-------> P=5x-1

<u>Triangle N 2</u>

P=(2x-5)+(x+4)+(6x-7)------> P=9x-8

equate the perimeters

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x=7/4------> x=1.75

therefore

the answer is

x=1.75

5 0
3 years ago
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ycow [4]

Answer:

3 or 6/2

Step-by-step explanation:

when there are two subtraction signs it can be taken as a plus sign

1/2 + 5/2

1/2 + 5/2 = 6/2

6 / 2 = 3

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4 0
2 years ago
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user100 [1]

Answer:

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Step-by-step explanation:

you substituto 2 week to 336 cause there are 336 hours in 2 weeks therefore 14/336 = 0.41

the unit rate is 14/336

7 0
2 years ago
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