Answer:
(a) 320 cm²
(b) 75 cm³
Step-by-step explanation:
The scale factor from A to B is 8/4 = 2.
The scale factor of the areas is 2² = 4.
The scale factor of the volumes is 2³ = 8.
(a)
80 cm² * 4 = 320 cm²
(b)
600 cm / 8 = 75 cm³
Answer:
3
Step-by-step explanation:
We want to cancel out the 3y. The second equation has a -y so if we multiply that by 3 we'll get -3y and when we add the ys go away.
The formula for this is an exponential formula written as:
Amount = Start value x (1-reate of change)^time
Since both sides are the same length we only need to use one side as the start value:
Start value is 10 inches
The rate of change would be 75% = 0.75
The amount of time is 5 ( reduced 5 times)
Now we have: 10 * 0.75^5
The new dimension of the picture is 2.4 inches by 2.4 inches
Answer:
360Θ
Step-by-step explanation:
