Answer:
I cannot awnser this question if it just shows d's, I am sorry.
-_-
A transformation of a figure in which all of the dimensions of the figure are multiplied by the same scale factor is called a dilation.
Effect of Dilation on Perimeter
Whenever a figure is dilated by a scale factor, the perimeter of the figure changes according to the same scale factor.
Effect of Dilation on Area
When a figure is dilated by a scale factor of , the area of the figure is dilated by a scale factor of
Example-
Lets imagine a rectangle with length 10 cm and width 8 cm
So area becomes = 10*8 = 80 square cm
Lets suppose the rectangle is reduced by a scale factor of to produce a new rectangle.
So we will find the square of scale factor =
Now to find the area of the new rectangle(dilated one) we will multiply the area of the original rectangle by 1/4
=
Hence, area becomes 20 square cm.
Answer:
b
Step-by-step explanation:
I took the test!
Answer:
75%
Step-by-step explanation:
We know that the quarterback has completed 30 of 40 passes. This means that the ratio of completed passes to total passes is 30:40. Converting this to a fraction, we get 30/40, which can be simplified to 3/4. 3/4 as a percentage is 75%. Therefore, the final answer is 75%.
If Farid takes teaspoon of allergy medicine every day, he will take 6 and teaspoons of allergy medicine a week. This problem is based on the principle of multiplication.
The principle of multiplication states that when two or more numbers are multiplied by each other, a new number is obtained, called their product.
Some of the examples are 2 × 6 =10; 3 × 5 × 10 = 150; 6 × 1 × 3 = 18, etc. 1 is the multiplicative identity as any number multiplied by 1 remains the same, e.g., 6 × 1 = 6.
Given that
The number of teaspoons of allergy medicine Farid takes every day = .
The number of days in a week = 7.
The number of teaspoons of allergy medicine Farid takes in a week
.
Thus, Farid takes 6 and teaspoons of allergy medicine a week.
Learn more about Multiplication here:
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