Find the vertex, focus, and directrix of the parabola.y2 = -36x
A. Vertex: V(0, 0); focus: F(-9, 0); directrix: x = 9
B. Vertex: V(0, 0); focus: F(9, 0); directrix: x = -9
C. Vertex: V(0, 0); focus: F(0, -9); directrix: y = 9
D. Vertex: V(0, 0); focus: F(-9, 0); directrix: y = 9
Answer: A
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Fill in the missing value.753,700 m2 = km2
A. 75.37 B. 7.537 C. 7537 D. 0.7537
Solve the problem. Round to the nearest tenth if necessary.A label on a box shows that the box weighs 30 kg. How many lbs is that?
A. 66 lb B. 31.8 lb C. 13.6 lb D. 76.2 lb
Find the product. Assume all variables have non-negative values.(
+ 
)(
- 
)
A. 6z
B. 6 - 2
C. 6 - 2
D. 6 - z
Solve.The distance that an object falls when it is dropped is directly proportional to the square of the amount of time since it was dropped. An object falls 128 feet in 2 seconds. Find the distance the object falls in 3 seconds.
A. 288 feet B. 96 feet C. 6 feet D. 192 feet