For the figures that have rotational symmetry, list the angles of rotation less than 360 degrees. For figures without rotational
symmetry, write “no rotational symmetry”.
Please show all work and not just the answers.
Please show all work and not just the answers.
1 answer:
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We have been given that a huge ice glacier in the Himalayas initially covered an area of 45 square kilo-meters. The relationship between A, the area of the glacier in square kilo-meters, and t, the number of years the glacier has been melting, is modeled by the equation .
To find the time it will take for the area of the glacier to decrease to 15 square kilo-meters, we will equate and solve for t as:
Now we will switch sides:
Let us take natural log on both sides of equation.
Using natural log property , we will get:
Therefore, it will take years for area of the glacier to decrease to 15 square kilo-meters.