Ultrasound is often used to make images of developing fetuses. In particular, by measuring the size of a fetus ultrasound and

Question

Ultrasound is often used to make images of developing fetuses. In particular, by measuring the size of a fetus ultrasound
and then predict its birthdate. To do this requires formulas for fetus size as a function of
age. Verburg et al. (2008) fit data from over 6000 fetal ultrasounds. They measured the femur length, L, (in mm) as a
function of the fetus age,, (in weeks) and found the following formula:
Calculated when t = 20.
L = -37.50 +3.71t - 0.000633t³
Does the rate of growth of the fetus increase or decrease as it ages?
A. Increases and decreases
B. Increases
C. Decreases
D. Not enough information to tell

Kunduz · Accepted Answer

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