Multiply. Write a mixed numeral for the answer.4 ? 5

A. 21
B. 20
C. 20
D. 20

Answer: A

Mathematics

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Find the area of the rectangle.  16 inches

A. 1536 sq in. B. 1526 sq in. C. 1280 sq in. D. 112 sq in.

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Mathematics

Graph both functions using the same set of axes.f(x) = 2x,f-1(x) = log2 x

A.  f(x) = 2x

B.  f(x) = 2x

C.  f(x) = 2x

D.  f(x) = 2x

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Mathematics

Find a positive value of the given variable so that the trinomial is factorable.x2 + bx - 2; b = ?

A. 4 B. 3 C. 2 D. 1

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Mathematics

To obtain the height of a tree (see figure), you measure the tree's shadow and find that it is 2  meters long. You also measure the shadow of a five-meter lamppost and find that it is 73  centimeters long. How tall is the tree? ? ?

A.  m
B.  m
C.  m
D.  m
E.  m

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Mathematics