Multiply the real numbers. Write any improper fraction as a whole or mixed number where appropriate.4(-7)
A. -28
B. -32
C. 28
D. 32
Answer: A
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Give a geometric description of the set of points whose coordinates satisfy the given conditions. x2 + y2 + z2 > 25
A. All points in space B. All points outside the cylinder with radius 5 C. All points on the surface of the cylinder with radius 5 D. All points outside the sphere of radius 5
Solve the problem.Suppose that four identical equilateral triangles are put together edge to edge to form a new larger equilateral triangle. Find the scale factor 
for the smaller and larger triangles. Find the ratio 
for the smaller and larger triangles. Find the dimension.Remember that dimension, d, is defined by (scale factor)d = 
What will be an ideal response?
Solve the system by the method of your choice. Identify systems with no solution and systems with infinitely many solutions, using set notation to express their solution sets.
A. {(5, -3)}
B. {(0, 7)}
C. {(x, y) 
}
D. ?
The graph is a translation of one of the basic functions defined by y = x2, y = x3, y = 
, or y = 
. Find the equation that defines the function.
A. y = x2 - 1 B. y = (x - 1)2 + 2 C. y = (x - 1)2 D. y = (x + 1)2