Simplify radical expressions by adding: 4 + 6.
a. 16 + 24
b. 32 + 8
c.16 + 8
a. 16 + 24
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The function f(x) changes value when x changes from x0 to x0 + dx. Find the approximation error 
. Round your answer, if appropriate.f(x) = 
, x0 = 3, dx = 0.8
A. 0.20517 B. 0.16362 C. 0.0174 D. 0.01223
The matrix associated with the solution to a system of linear equations in x, y, and z is given. Write the solution to the system, if it exists.
A. x =-3, y = 3, z = 1 B. x = -1, y = 1, z = 3 C. x = -1, y = 3, z = 1 D. x = 1, y = -1, z = 3
Use a sum-to-product identity to rewrite the expression.cos 11° - cos 39°
A. -2cos 25.0o cos (-14.0°) B. -2cos 25.0o sin (-14.0°) C. -2sin 25.0° cos (-14.0°) D. -2sin 25.0° sin (-14.0°)
Solve the problem.A pipe is cut into two pieces, with one piece 20 feet longer than the other. The pipe was 56 feet long before it was cut. How long is each piece?
A. 38 feet, 18 feet B. 38 feet, 36 feet C. 56 feet, 36 feet D. 76 feet, 36 feet