It is D.
Reason. 3^2 is 9, 4^2 is 16.
16+9= 25
The square root of 25 is 5.
Therefore it is D.
The volume of the car is 1800cm^3 which is equivalent to 0.0018m^3
<h3>Scale modelling</h3>
Given the scale factor that model of a car is amde to a scale of 1:40, Giving that the model as 45cm^3, this means that;
1 = 45cm^2
Determine the volume of the car
40 = x
Find the ratio
1/40 = 45/x
x = 40*45
x = 1800cm^3
x = 0.0018m^3
Hence the volume of the car is 1800cm^3 which is equivalent to 0.0018m^3
Learn more on scale factor here; brainly.com/question/25722260
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This equation basically says that a number plus 3/5 equals 2 so we can simply:
2 - 3/5 = x
Therefore x equals 1 & 2/5 or 1.4
Answer:
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Step-by-step explanation:
