Evaluate the square root and approximate to two decimal places if necessary.
A. 40
B. 20
C. 10
D. 400
Answer: B
Mathematics
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Solve the equation. If there are no real solutions, write "no real-number solutions."x2 = 25
A. 
B. ±5
C. 5
D. no real-number solutions
Mathematics
Find the curvature of the curve r(t).r(t) = (7 + 9 cos 8t) i - (4 + 9 sin 8t)j + 6k
A. ? = 
B. ? = 
C. ? = 
D. ? = 9
Mathematics
Solve the differential equation.xy '+ 4y = 
, x > 0
A. y = 
, x > 0
B. y = 
, x > 0
C. y = 
, x > 0
D. y = 
, x > 0
Mathematics
Provide an appropriate response.Determine whether or not the function is one-to-one: f(x) = |x - 8|.
What will be an ideal response?
Mathematics