Locate the point on the rectangular coordinate system.
(2, 0)
A. B
B. F
C. K
D. C
Answer: B
Mathematics
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The position vector of a particle is r(t). Find the requested vector.The velocity at t = 
for r(t) = 4 sec2(t)i - 6tan(t)j + 1t2k
A. v
= 16i + 12j - 
?k
B. v
= -12j + 
?k
C. v
= -12j - 
?k
D. v
= 16i - 12j + 
?k
Mathematics
Solve the equation.x(x - 30) = -225
A. {30} B. {15} C. {-15} D. {15, -15}
Mathematics
Evaluate the expression for the given values. If necessary, round to the nearest tenth.0.506x2 + 0.47y2 x = 5, y = 10
A. 59.7 B. 62.4 C. 1288.8 D. 28.5
Mathematics
Find the domain and range of the inverse of the given function.f(x) = - 
A. Domain and range: all real numbers B. Domain: all real numbers; range: (-?, 0) ? (0, ?) C. Domain and range: (-?, 0) ? (0, ?) D. Domain: (-?, 0) ? (0, ?); range: (-?, 0)
Mathematics