My sister and I have a bet on my homework
The length of a rectangle is 1.2 x10-4 kilometer. The width of the rectangle is 6.25x10^-5 kilometer. What is the area in square kilometers of this rectangle?
7.5x10-9 or 7.5x10^3
(1.2 * 10^-4 km)(6.25*10^-5 km) = 7.5*10^-9 km^2
that's 7.5*10^-3 m^2
To find the area of a rectangle, you multiply the length by the width.
Given:
Length = 1.2 x 10^-4 kilometer
Width = 6.25 x 10^-5 kilometer
Let's calculate the area step by step:
Step 1: Multiply the length and the width
(1.2 x 10^-4) km * (6.25 x 10^-5) km
Step 2: Multiply the coefficients (1.2 * 6.25)
= 7.5
Step 3: Multiply the powers of 10 (-4 * -5)
= 10^-9
So, the area of the rectangle is 7.5 x 10^-9 square kilometers.
To find the area of a rectangle, we need to multiply the length by the width. In this case, the length is given as 1.2 x 10^-4 kilometer and the width is given as 6.25 x 10^-5 kilometer.
To multiply two numbers expressed in scientific notation, we multiply their coefficients (1.2 * 6.25) and then add the exponents (-4 + -5).
(1.2 * 6.25) = 7.5
(-4 + -5) = -9
Therefore, the area of the rectangle is 7.5 x 10^-9 square kilometers. So you win the bet!