Please please help meee
1 answer:
The perimeter of the given quarter circle is 24.997 cm.
Step-by-step explanation:
Step 1:
The perimeter of a circle is 2π times its radius.
The given figure is only a quarter circle so we divide the entire circle's perimeter by 4 to get this figures circular portions perimeter and add it with the lengths of the two sides of the quarter circle.
The perimeter of a circle
Step 2:
The given circle has a radius of 7 cm and we take
The perimeter of the full circle
The perimeter of the circular portion cm.
The two sides measure 7 cm each.
So the perimeter of the given figure cm.
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Answer: 0.80
Step-by-step explanation:
Given : The owner of the West End Kwick Fill Gas Station wishes to determine the proportion of customers who pay at the pump using a credit card or debit card.
He surveys 100 customers and finds that 80 paid at the pump.
Then, sample proportion=
Since , the best point estimate for population proportion is sample proportion.
Therefore, the estimated value for population proportion =0.80