This equation does not have any solution since determinant <0
i.e.,D=b^2-4ac
=2^2-4×1×7
=4-28
=-24
i.e.,is less than 0
it was invented in 500b.c. when there were dinosaurs <span />
Answer:
x < 2
Step-by-step explanation:
8x -1 < 15
8x -1 (+ 1) < 15 (+ 1)
8x < 16
x < 2
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so initially the paper is in full piece.
it is cut into half, which makes into 2. this is pattern 1.
then the halves is further divided in to 2.
then the total becomes 4. then the four pieces are cut into halves, which makes the total of 8 pieces, that is pattern 3..
is if we see the pattern it is a geometric progression.
Tn=ar²-¹ where the r is common ratio
and a is the first term. the question mentioned repeat 15 times.
1. 2
2. 4
3. 8
4. 16
4÷2=2 the common ratio.
So T(15)= 2×2¹⁵-¹
2×2¹⁴
2¹⁵
32768 pieces
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