Multiply or divide as indicated.
? 
A. 
B. 
C. 
D. 
Answer: A
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The position vector of a particle is r(t). Find the requested vector.The velocity at t = 3 for r(t) = (3 - 5t2)i + (5t + 8)j - e-5tk
A. v(3) = -30i + 5j - 5e-15k B. v(3) = -30i + 5j + 5e-15k C. v(3) = 30i + 5j + 5e-15k D. v(3) = -15i +5j + 5e-15k
Write the converse, inverse, or contrapositive off the proposition, as indicated.If the alarm beeps every thirty seconds, then you have to replace the battery. (converse)
A. If you do not have to replace the battery, then the alarm does not beep every thirty seconds. B. If you have to replace the battery, then the alarm does not beep every thirty seconds. C. If you have to replace the battery, then the alarm beeps every thirty seconds. D. If the alarm does not beep every thirty seconds, then you do not have to replace the battery.
Determine whether the given point is in the solution set to the given system.(7, 2, -5)3x - 8y + z = 02x + 4y - 3z = 37-x + 2y - z = 2
A. Yes B. No
Solve the formula for the specified variable.
- 
+ 
= 1 for x
A. x = 
B. y = 
C. x = 
D. z = 