Solve the problem.A biologist collected 180 fern and moss samples. There were 48 fewer ferns than moss samples. How many fern samples did the biologist collect?
A. 132 fern samples
B. 81 fern samples
C. 66 fern samples
D. 114 fern samples
Answer: C
Mathematics
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If x = 188 then -(-x ) = ____ .
A. -188 B. 188 C. -x
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The vector r(t) is the position vector of a particle at time t. Find the angle between the velocity and the acceleration vectors at time t = 0.r(t) = e2ti + (5 + e-2t)j + (3 cos 9t)k
A. 
B. 
C. 0
D. 
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Use power series operations to find the Taylor series at x = 0 for the given function.f(x) = cos2(10x)
A. 
+
B. 
+
C. 
+
D. 
+
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Determine if the given ordered pair is a solution to the equation.y = 2x2 + x - 4, (3, 16)
A. Yes B. No
Mathematics