X=-1
-1x2 + 5x-1 +7 = 0
-7+7 =0
0=0
Answer:
Step-by-step explanation:
(9x-1)^-1/2 - (x+2)(9x-1)^-1/2
= (9x-1)^-1/2( 1 - (x + 2))
= (9x-1)^-1/2(-1 - x)
= -(x + 1)(9x-1)^-1/2
= -(x + 1) / (9x-1)^1/2
2 times 8 equals 16 + 10 equals 26
20% of 100 is 20. divide that by 2 to get 20% of 50. 20/2 is 10. 20% of 50 is 10. There are 10 blue marbles.
Hope it helped :)
Ali
Answer:
x >
Step-by-step explanation:
Add 3 and 1 to get 4.
Use the distributive property to multiply 5 by 9−x.
Subtract 45/5 from both sides.
Since 44/4 and 45/4 have the same denominator, subtract them by subtracting their numerators.
Multiply both sides by -4/5, the reciprocal of -5/4. Since -5/4 is negative, the inequality direction is changed.
Multiply -1/4 times -4/5 by multiplying numerator times numerator and denominator times denominator.