Answer the following statement(s) true (T) or false (F)
1. If two chords intersect, the measure of any one of the vertical angles formed is half the difference of the two arcs intercepted by the two vertical angles.
2. If two secants intersect outside a circle, the measure of the acute angle formed is half the difference of the measures of the intercepted arcs.
3. The measure of an angle formed when a chord intersects a secant line is half the measure of the arc intercepted by the chord and the secant line.
4. If 
are tangent to circle O at points B and C, respectively, then AB = AC.
1. False—Solve a Simpler Problem is indicated.
2. True
3. False: It is “Look for a Pattern.”
4. True
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Find the mean.Frank's Furniture employees earned the following amounts last week: $246.87 $258.97 $171.77 $471.95 $394.87 $359.81 $376.58 $472.87 $509.01What was the mean amount earned by an employee last week? Round your answer to the nearest cent.
A. $466.10 B. $355.86 C. $362.52 D. $407.84
Round the decimal to the given place value.1.544, nearest tenth
A. 1.6 B. 1.4 C. 1.544 D. 1.5
Use a graphing calculator and the method of matrix inverses to solve the system. Give 5 decimal places.?x + ey + 
z = 2ex + ?y + 
z = 4
x + ey + ?z = 6
A. {(-2.01284, 2.71182, 0.67317)} B. {(1.41421, 2.82843, 3.46410)} C. {(-2.71828, 3.14159, 1.41421)} D. {(-4.12755, 4.84931, -0.01039)}
Find an equation of the line that contains the given point and is perpendicular to the given line.y = 7, (5, 4)
A. x = 5 B. y = 4 C. y = -4 D. x = 7