Answer:
x=√2,-√2
Step-by-step explanation:
A:
Width of the deck =
units
Length of the deck =
units
So area of rectangular deck = Length * width
= 
Area = 
Area=
units square
As mentioned in part B, the area of the pool is
so the combined area of the deck and pool is
Area = area of rectangular deck + area of pool
=
unit square
B:
The area of only the deck is
unit square
It would still be 80
Example:
<span>14,494 </span>
<span>To round off the height value to the nearest thousand we can use the expanded from to clarity the position of numbers which is: </span>
<span>10, 000 = ten thousand </span>
<span>4, 000 = thousands </span>
<span>400 = hundreds </span>
<span>90 = tens </span>
<span>4 = ones </span>
<span>Here we can notice than four thousand is the value where the nearest thousands is placed. Hence we can round off the number of 14, 494 into 14, 000. Notice 0-4 rounding off rules.<span> </span></span>
Answer:
x=13
y=11
Step-by-step explanation:
3y+5+52=90
3y=90-57
3y=33
y=33/3=11
4x=52
x=52/4=13
Answer:
value of expression = 12
Step-by-step explanation:
[(-10+2)-1]+(2+3)
= [(8)-1]+(5) ∵according to PEMDAS, we first solve the Parenthesis
= (7)+(5)
= 12