Use the given substitution to solve the equation.2x-2 + 5x-1 - 3 = 0, u = x-1
A. 2, 3
B. - 
, -2
C. - 
, 2
D. 2, -3
Answer: C
Mathematics
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Solve the problem.Let Vt be the volume of the tetrahedron bounded by the coordinate planes and the plane 
, and let Ve be the volume of the ellipsoid 
. Find the quotient 
.
A. 
B. 
C. 4?
D. 8?
Mathematics
Find R1 if RT = 27 Kê and R2 = 5.1 Kê.
a. 21.9 Kê
b. 32.1 Kê
c. 78 Kê
d. 116 Kê
e. 121.9 Kê
Mathematics
Use similar triangles and a proportion to find the height of the house shown in the figure below.
?
?
Where 
?
A. 16 ft B. 20 ft C. 18 ft D. 72 ft E. 4 ft
Mathematics
Find each product. Write the result in the form a + bi.(3 + i
)(3 - i
)
A. 15 B. 45 C. 9 + 6i D. 3
Mathematics