Use the square root property to solve the quadratic equation.4x2 = 28

A. 8
B. ±7
C. ±
D. 7


Answer: C

Mathematics

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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) = sin-1(3t)i + ln(5t2 + 1)j + k

A.
B. 0
C.
D.

Mathematics

Simplify.(-2a7b4)3  

A. -8a21b12 B. 8a21b12 C. 8a10b7 D. -8a10b7

Mathematics

Find all solutions.x3 + 5x2 - 36x - 180 = 0

A. {-6, 6, 5} B. {6, -5} C. {-6, 6, -5} D. {36, -5}

Mathematics

Write the set by listing its elements.{p|p is an irrational number that is also rational}

A. {0} B. {-1} C. ? D. {1}

Mathematics