Write the equivalent fractions with the least common denominator.
and 
A. 
= 
; 
= 
B. 
= 
; 
= 
C. 
= 
; 
= 
D. 
= 
; 
= 
Answer: C
Mathematics
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Solve the problem.A Tasmanian lottery ticket consists of choosing 7 different numbers between 1 and 56. The number of possible lottery tickets is given by
A. 
.
B. 
.
C. 
.
D. 
.
E. none of these
Mathematics
Write the expression in the form a + bi, where a and b are real numbers.
(
+ 
)
A. 10 - 20i B. 20 + 10i C. -20 - 10i D. -10 + 20i
Mathematics
Find the probability of the given event.A single fair die is rolled. The number on the die is a 3 or a 4.
A. 
B. 
C. 
D. 2
Mathematics
Factor completely.10z2 + 9z - 9
A. (2z + 3)(5z - 3) B. (10z + 3)(z - 3) C. (2z - 3)(5z + 3) D. (10z + 1)(z - 9)
Mathematics