Find the mean. Round to the nearest tenth unless otherwise stated.Retirement ages of teachers: 51, 63, 64, 56, 67, 58, 68, 53, 57
A. 59.7
B. 58.4
C. 59
D. 58
Answer: A
Mathematics
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Find 
by using logarithmic differentiation.y = 
A. 
B. 
C. ln x + 
ln(x3 + 6) - 
ln(x + 1)
D. 
+ 
- 
Mathematics
By how much did the price of a sofa decrease if the regular price of $2,266 was reduced by 50%?
A. 45 B. 1133 C. 1133 D. 2266
Mathematics
Solve the equation.5y4 + 8y2 - 4 = 0
A. ±
, ± 
B. 
, -2
C. ±
, ±j
D. - 
, 2
Mathematics
Verify the identity.
= 
What will be an ideal response?
Mathematics