Find the inverse of the matrix. Round your answers to 3 decimal places.
?
What will be an ideal response?
Mathematics
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Evaluate the integral in terms of natural logarithms.
A. ln 2
B. 
ln 
C. ln 
D. 
ln 
Mathematics
Let x represent one number and let y represent the other number. Use the given conditions to write a system of equations. Solve the system and find the numbers.The sum of two numbers is 20. If one number is subtracted from the other, their difference is 7. Find the numbers.
A. 12.5 and 7.5 B. 13.5 and 6.5 C. 14.5 and 5.5 D. 10.5 and 9.5
Mathematics
Find the sum.
A. -70 B. -80 C. -15 D. -46
Mathematics
Find the principal unit normal vector N for the curve r(t).r(t) = (t2 + 8)j + (2t - 1)k
A. N(t) = - 
j + 
k
B. N(t) = - 
j + 
k
C. N(t) = 
j - 
k
D. N(t) = 
j - 
k
Mathematics