The area of the rectangle is the product of the length and the width of the quadrilateral. Hence, the sum of the areas is equal to $2*1+2*4+2*9+2*16+2*25+2*36$. This is simply equal to $2*(1+4+9+16+25+36)$, which is equal to $2*91$, which is equal to our final answer of 182.
1) As a start you have 100% of contaminants: so
the 1st filtration you removed 70% & remaining 30%
the 2nd filtration you removed 70% of the 30% (=21%) & remaining (30%-21%)
or 9%
the 3rd filtration removed 70% of the 9% (=6.30%) & remaining (9%-6.3%)
or 2.7%
the 4th filtration removed 70% of the 2.7% (1.89%) & remaining (2.7%-1.89%)
or 0.81%
Follow the same logic for all remaining question.
Answer:
$160
Step-by-step explanation:
I = 800 * 5 * 4% (I multiply the time and principal first, so I already have the wholes covered.)
I = 4,000 * 4% (now to convert 4% and 4000 into fractions.)
I = 4000/1 * 1/25 (Cross cancel if needed. GCF is 25.)
I = 160/1 * 1/1 (Just remove 1/1)
I = $160 (There's your answer!)
Answer:
b = 12
Step-by-step explanation:
Complementary angles add to 90 degrees
a+b = 90
78+b = 90
Subtract 78 from each side
78-78+b = 90-78
b = 12
