(I need this answer ASAP)
A leak in a water tank causes the water level to decrease by 3.6×10^−2 millimeters each second. About how many millimeters does the water level in the tank decrease in 5 hours, or 1.8×10^4 seconds?
Drag and drop the values to the boxes to express the answer in scientific notation.
Choices to drag and drop: 2, 5, 5.4, 6.5, 10^-8, 10^-2, 10^2, 10^6
___*___ mm
IDK, I think it's 5*10^6mm. I could be wrong though.
OK, I'll finish and see if it is right.
Go ahead.
(1.8 * 3.6) x (10E-2 * 10E4)
multiply the number part ... sum the powers of 10
To find the number of millimeters the water level decreases in 5 hours, we need to multiply the rate of decrease (3.6x10^-2 mm/s) by the time in seconds (1.8x10^4 s).
To do this, we multiply the two values:
(3.6x10^-2 mm/s) * (1.8x10^4 s)
When multiplying numbers in scientific notation, we can multiply the coefficients (3.6 * 1.8) and add the exponents of 10 (-2 + 4):
(3.6 * 1.8) x 10^(-2 + 4)
= 6.48 x 10^2
Therefore, the water level in the tank decreases by approximately 6.48x10^2 millimeters in 5 hours or 1.8x10^4 seconds.
So, the answer in scientific notation is: 6.48 * 10^2 mm.