Use an inverse matrix to solve the given system of equations. -4x - 4y - z = -43 x - 4y + 5z = 34 4x + y + z = 37
A. (7, 7, 2)
B. (-7, 2, 14)
C. (7, 2, 7)
D. No solution
Answer: C
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Use substitution to factor the polynomial.60z6 + 123z4 + 60z2
A. 3(4z4 + 5)(5z2 + 4) B. 3z2(5z2 - 4)(4z2 - 5) C. (12z3 + 15)(5z3 + 4) D. 3z2(4z2 + 5)(5z2 + 4)
Write equations of the horizontal and the vertical lines that pass through the given point.
A. horizontal: y = 
x;
vertical: x = -4y
B. horizontal: y = -4;
vertical: x = 
C. horizontal: y = - 
;
vertical: x = -4
D. horizontal: y = 
;
vertical: x = -4
Solve the problem.A certain area of forest is populated by two species of animals, which scientists refer to as A and B for simplicity. The forest supplies two kinds of food, referred to as F1 and F2. For one year, species A requires 1.5 units of F1 and 1.05 units of F2. Species B requires 2.0 units of F1 and 1.8 units of F2. The forest can normally supply at most 909 units of F1 and 450 units of F2 per year. What is the maximum total number of these animals that the forest can support?
A. 176 animals B. 428 animals C. 300 animals D. 906 animals
The figure contains two similar triangles. Find the unknown measure indicated by a variable. Round your answer to the nearest tenth.
?
?
Where 
?
A. 
B. 
C. 
D. ?
E. ?