Determine if the given ordered triple is a solution of the system.x - y + z = 5x + y + z = -5x + y - z = 3(4, -5, -4)
A. Yes
B. No
Answer: A
Mathematics
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Find the curvature of the curve r(t).r(t) = (10 + ln(sec t))i + (4 + t)k, -?/2 < t < ?/2
A. ? = -cos t B. ? = 1 - cos t C. ? = cos t D. ? = sin t
Mathematics
Find the indicated vector.Let u = 
. Find 4u.
A. 
B. 
C. 
D. 
Mathematics
The lengths of the sides of a triangle are given. Determine if the triangle is a right triangle. If it is, identify the hypotenuse.10, 24, 26
A. right triangle; 24 B. right triangle; 26 C. right triangle; 10 D. not a right triangle
Mathematics
Solve the equation.
a - 
= -4
A. -7 B. 7 C. 9 D. -9
Mathematics