A pair of similar triangles is shown. Find the measure of the segment marked with the letter x.
A. x = 12
B. x = 7
C. x = 21
D. x = 28
Answer: C
Mathematics
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Write a formula for the nth term of the given geometric sequence. Do not use a recursion formula.3, 
, 
, 
, ...
A. an = 3 + 
(n - 1)
B. an = 3 - 
(n - 1)
C. an = 3
n - 1
D. an = 3n - 1 - 
Mathematics
Solve the equation.log x + log (x -1) = log 90
A. x = -9
B. x = 10, x = -9
C. x = 
D. x = 10
Mathematics
Solve the absolute value inequality. Write your answer in interval notation.|z - 6| ? 0
A. No solution B. [6, -6] C. 6 D. [-6, 6]
Mathematics
Sketch the graph of the quadratic function.f(x) = -4(x - 6)2 - 2
A. 
B. 
C. 
D. 
Mathematics