In how many ways can the letters LEADER be arranged?
72
144
360
720
Correct answer is C
The word LEADER has 1L 2E 1A 1D and 1R making total of 6! \(\frac{6}{1!2!1!1!1!}\) = \(\frac{6!}{2!}\)
= \(\frac{6 \times 5 \times 4 \times 3 \times 2 \times 1}{2 \times 1}\)
= 360
Integrate the expression 6x\(^2\) - 2x + 1
3x\(^3\) - 2x\(^2\) + x + c
2x\(^3\) - x\(^2\) + x + c
2x\(^3\) – 3x\(^2\) + c
x\(^3\) + x\(^2\) – x + c
Correct answer is B
6x\(^2\) - 2x + 1
\(\frac{6x^{2+1}}{2+1} - \frac{2x^{1+1}}{1+1}+ 1x = \frac{6x^3}{3} - \frac{2x^2}{2} + x\)
\(2x^3 - x^2 + x + c\)
52cm
43cm
40cm
15cm
Correct answer is B
Tan 74 = 150/x x = 150/tan 74 = 43.01cm
N828.00
N756.00
N720.00
N684.00
Correct answer is C
Since the salary increases by #36 after every 6 months
: 2 years and 8 months imply an increase of five times only:
36 * 5 → #180
His salary then = initial salary + increment
= 540 + 180
= #720
Answer is C
Find the equation of the line through (5,7) parallel to the line 7x + 5y = 12
5x + 7y = 20
x + 5y = 70
xy = 7
15x + 17y = 90
Correct answer is B
No explanation has been provided for this answer.