Answer:
Step-by-step explanation:
d=√((-3-7)²+(3+7)²)=10√2≈14
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Answer:
303.6ft² or 347.88 ft²
Step-by-step explanation:
The question is on area
The dimensions of the living room are given as;
Length= L = 22'-0"
Width= W= 12' -0" or 13'- 9"
Area= L× W
22'×12'=264ft²
Allow 15% waste
264× 115/100 =303.6ft²
or
Length= 22' and width = 13' 9"
change 9" to ft ⇒1'=12"...........................divide by 12"
9/12=0.75'................add to 13'
13'+0.75'=13.75'
Area=L×W
22'×13.75'=302.5ft²
Add 15% allowed waste
302.5 × 115/100 =347.88 ft²
Answer:
3 metres
Step-by-step explanation:
Let the width of the pathway be x
Area: (9+2x)(4+2x)
36 + 8x + 18x + 4x²
4x² + 26x + 36
Increased area is 150:
4x² + 26x + 36 = 150
4x² + 26x - 114 = 0
2x² + 13x - 57 = 0
2x² + 19x - 6x - 57 = 0
x(2x + 19) - 3(2x + 19) = 0
(x - 3)(2x + 19) = 0
x = 3, x = -19/2
Answer:
150
Step-by-step explanation:
