Use order of operations to simplify the expression.-18 - [(7 - 4) - (-4 - 4)]
A. -29
B. -15
C. -7
D. -21
Answer: A
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If r(t) is the position vector of a particle in the plane at time t, find the indicated vector.Find the acceleration vector.r(t) = (4 cos t)i + (8 sin t)j
A. a = (-4 cos t)i + (-8 sin t)j B. a = (4 sin t)i + (8 cos t)j C. a = (4 cos t)i + (8 sin t)j D. a = (-4 sin t)i + (-8 cos t)j
For the given correspondence, write the domain and the range. Then determine whether the correspondence is a function.{(-8, -5), (-5, -10), (0, 8), (8, 3)}
A. domain: {-10, -5, 3, 8}, range: {-8, -5, 0, 8}; Yes, it is a function. B. domain: {-10, -5, 3, 8}, range: {-8, -5, 0, 8}; No, it is a not a function. C. domain: {-8, -5, 0, 8}, range: {-10, -5, 3, 8}; Yes, it is a function. D. domain: {-8, -5, 0, 8}, range: {-10, -5, 3, 8}; No, it is a not a function.
Provide an appropriate response.Identify the statement that is a true equation.
A. (-6) + (1) = 7 B. (-6)(-2) = 12 C. 2(-3) = 6 D. 5 - 7 = 2
Find the polar coordinates of the point(s) of intersection of the given curves for 0 ? ? < 2?.r = 7, r = 7 + sin ?
A. (0, 0), (7, 0), (7, ?) B. (0, 0), (0, 7), (?, 7) C. (0, 7), (?, 7) D. (7, 0), (7, ?)