The strain (percent of compression) on the lumbar vertebral disks in an adult human as a function of the load x (in kilograms) is given by 
.
?
What is the rate of change of the strain with respect to the load when the load is 50 kg? When the load is 300 kg? Give the answers to four decimal places.
?
A. 0.0970
; 0.0240
B. 0.1007; 0.0240
C. 0.0970; 0.0216
D. 0.1007; 0.0216
Answer: D
Mathematics
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Estimate the product by rounding.
A. 25 B. 30 C. 20 D. 24
Mathematics
Provide an appropriate response.The root x = 
is the correct solution for which equation?
A. 
x = 1
B. 2x = -1
C. 6x = 3
D. 4x = 8
Mathematics
Write the standard form of the equation of the circle with radius r and center (h, k).r = 
; (h, k) = (0, 8)
A. (x - 8)2 + y2 = 121 B. (x + 8)2 + y2 = 121 C. x2 + (y - 8)2 = 11 D. x2 + (y + 8)2 = 11
Mathematics
Add or subtract as indicated. Express the answer as a single polynomial in standard form.(6x2 + 12x - 8) + (24x + 8)
A. 6x2 + 36x - 16 B. 6x2 + 36x C. 6x2 + 12x + 16 D. 42x3
Mathematics