Consider the following equations:
x + 2y + z = 2
2x + y + 3z = 4
4x + 2y - 2z = -3
³1 2 1³ 7 11 33
³ ³ x = ÄÄ y = ÄÄ z = ÄÄ
a. ³2 1 3³ = 24 b. 24 24 24
³ ³
³4 2 -2³
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Find the standard-form equation of the hyperbola centered at the origin which satisfies the given conditions.Foci at (0, -25), (0, 25); asymptotes: y = 
x, y = - 
x
A. 
- 
= 1
B. 
- 
= 1
C. 
- 
= 1
D. 
- 
= 1
Convert the Indo-Arabic numeral to the indicated form.3067; Egyptian
A. 
B. 
C. 
D. 
Solve the problem.How many spanning trees does the following network have?
A. 1 B. 3 C. 4 D. 2 E. none of these
Use the properties of angle measures to find the measure of each marked angle.Lines m and n are parallel.
a = (2x + 9)°b = (3x - 14)°
A. -37°, -37° B. 23°, 23° C. 67°, 67° D. 55°, 55°