The magnitude of earthquake 1 is 8.6. Earthquake 2 is half as intense as earthquake 1. What is the magnitude of earthquake 2? Round your answer to 1 decimal place.
?
A. 7.7
B. 8.3
C. 4.3
D. 5.1
Answer: B
Mathematics
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State the quadrant in which the point lies.(-10, -2)
A. Quadrant III B. Quadrant II C. Quadrant I D. Quadrant IV
Mathematics
Determine the number that should be added to complete the square of the expression. Then factor the expression.x2 - 
x
A. 
; 
2
B. 
; 
2
C. 
; 
2
D. 
; 
2
Mathematics
Find the angle, in degrees, between two adjacent sides of the pyramid shown below. Round to the nearest tenth of a degree. [Note: The base of the pyramid is not considered a side.]
P(8, 0, 0), Q(8, 8, 0), R(0, 8, 0), S(4, 4, 4)
A. 54.7° B. 30° C. 2.1° D. 90° E. 45°
Mathematics
Add.2213 + 1415
A. 3628 B. 3727 C. 3569 D. 3664
Mathematics