Find x in the figure below.
(a) x = 20
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Use the indicated model of multiplication to illustrate the statement.(2 ? 3) ? 4 = 2 ? (3 ? 4); array model
A. (2 ? 3) ? 4 has four sets of blocks with 2 rows and 3 columns in each set.
4 sets of these
2 ? (3 ? 4) has two sets of blocks with 3 rows and 4 columns in each set.
2 sets of these
B. (2 ? 3) ? 4 has six sets of blocks with 1 column and 4 rows in each set.
6 sets of these
2 ? (3 ? 4) has 12 sets of blocks with 1 column and 2 rows in each set.
12 sets of these
Find the perimeter or area of the figure as indicated. Express your answer in simplified radical form.Find the area of the rectangle. 
ft
A. 5
sq ft
B. 25
sq ft
C. 10 sq ft
D. 
sq ft
Simplify.i13
A. 1 B. -i C. i D. -1
Given f(x) and g(x), find all values of x for which f(x) = g(x).f(x) = 2x2 + 3x and g(x) = 3 + 5x
A. 
, 
B. 
, 
C. -1 + 
, -1 - 
D. 1 + 
, 1 - 