Perform the indicated operation and express in lowest terms.
- 
A. 
B. 
C. 
D. 
Answer: C
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Find the length of each side of the triangle ABC and determine whether the triangle is an isosceles triangle, a right triangle, both, or neither. Select the correct answer.
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A given sine wave has a peak voltage value of 18.3 V. The instantaneous value at 270ø is
a. -18.3 V b. 0 V c. 6.8 V d. 18.3 V
Write the decimal point in the correct location. 10.6 km × 0.81 = 8586 km
A. 85.86 km B. 858.6 km C. 8586. km D. 8.586 km
When a satellite is near Earth, its orbital trajectory may trace out a hyperbola, a parabola, or an ellipse. The type of trajectory depends on the satellite's velocity V in meters per second. It will be hyperbolic if 
, parabolic if 
, and elliptical if 
, where k = 2.82 × 107 is a constant and D is the distance in meters from the satellite to the center of Earth. Solve the problem.If a satellite is scheduled to leave Earth's gravitational influence,
its velocity must be increased so that its trajectory changes from elliptical to hyperbolic. Determine the minimum increase in velocity necessary for a satellite traveling at a velocity of 5696 meters per second to escape Earth's gravitational influence when 
A. -3514 m per sec
B. 5627 m per sec
C. 5765 m per sec
D. 7878 m per sec