The letters r and ? represent polar coordinates. Write the equation using rectangular coordinates (x, y).r = 10 sin ?
A. 
= 10y
B. x2 + y2 = 10y
C. x2 + y2 = 10x
D. 
= 10x
Answer: B
Mathematics
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Find the derivative of the vector function.
r(t) = a + tb + t²c
Mathematics
Use dot mode to graph the function f in the standard viewing rectangle. Evaluate f for the given x-values.f(x) = [[x + 3]] at x = -2.5 and x = 0.8
A. 
f(-2.5) = 0, f(0.8) = 3
B. 
f(-2.5) = -2, f(0.8) = 0
C. 
f(-2.5) = 1, f(0.8) = 2
D. 
f(-2.5) = 0, f(0.8) = 2
Mathematics
Determine if the relation is a function.
A. Not a function B. Function
Mathematics
Solve the equation.
= 
A. 
B. 
C. 
D. 
Mathematics