Here are the first 3 to show you how to do them
Answer:
Perimeter of the quarter circle will be 24.997 cm.
Step-by-step explanation:
Picture shown is a sector of a circle having an angle inscribed = 90° at the center
Formula to get the circumference of the sector is,
Circumference of the sector =
C =
C =
C = 10.997 cm
Now perimeter of the figure = Sum of lengths of all sides
P = 2r + C
P = 7 + 7 + 10.997
= 24.997 cm
Therefore, Perimeter of the quarter circle will be 24.997 cm.
The number of bacteria is the square of the number of minutes. so after 20 mins, there will be 400 bacteria
Answer:
Music land has the better deal with each CD costing only $7.44 compared to $9.80 at CD City.
Step-by-step explanation:
In order to find the price per CD, you must divide the cost by the number of CDs in the bundle.
<u>Music Land</u>
$59.50/8 CDs = $7.44 per CD
<u>CD City</u>
$49/5 CDs = $9.80 per CD
Therefore, we know that Music Land is a better deal.
Answer:
do 10.5 - 1.5 and that will give you 9.