Find the requested measurement.The point (-2, -3) is on a circle that has center (-2, 6). Find the length of the diameter of the circle.
A. 4.5
B. 18
C. 18.5
D. 17
Answer: B
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For the given rectangular equation, write an equivalent polar equation.xy = 4
A. r = 4 sin ? cos ?
B. r = 
C. r2 = 
D. r2 = 4 sin ? cos ?
Solve.A sphere has a radius of 3 in. If the radius is decreased by x in., express the volume of the sphere as a function of x. What is the domain of V = f(x)?
A. V = 
?(x - 3)3: 0 ? x ? 3
B. V = 
?(3 - x)3: x ? 3
C. V = 
?(3 - x)3: 0 ? x < 3
D. V = 
?(3 - x)3: 0 < x < 3
What is the value of
VR = 10 V, R1 = 300 ê, and IT = 10 mA. What is the value of VR ?
2 1
a. 3.0 V
b. 10.0 V
c. 13.0 Vs
d. 15.0 V
e. 30.0 V
Assume triangle ABC has standard labeling. Determine if AAS, ASA, SSA, SAS, or SSS is given, and decide if the law of sines or the law of cosines should be used to solve the triangle.a, ?, and ?
A. AAS; law of sines B. ASA; law of cosines C. ASA; law of sines D. AAS; law of cosines