Trace metals in drinking water affect the flavor and an unusually high concentration can pose a health hazard. We obtain the fol
lowing data for 9 glasses of water. Each glass contained the same amount of water. We look at the zinc concentration (mg/L) in bottom water and the zinc concentration in surface water for each glass. It is fine to round any standard deviations to 2 decimals. Glass 1 2 3 4 5 6 7 8 9 Bottom Water .48 .32 .62 .58 .76 .77 .70 .64 .52 Surface Water .42 .24 .39 .41 .61 .61 .63 .52 .41
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As the x-values go to positive infinity, the function’s values go to negative infinity.
As the x-values go to positive infinity, the function’s values go to negative infinity.
the length of the side of this square is cm
Answer:
Solutions Given:
let diagonal of square be AC: 8 cm
let each side be a.
As diagonal bisect square.
let it forms right angled triangle ABC .
Where diagonal AC is hypotenuse and a is their opposite side and base.
By using Pythagoras law
hypotenuse ²=opposite side²+base side²
8²=a²+a²
64=2a²
a²=
a²=32
doing square root on both side
a=±
a=±2*2
Since side of square is always positive so
a=4 or 5.65 cm
