Answer: k = -2
solution: 2kx-3k<2x+4+3kx,
-3k-4<2x+3kx-2kx,
-3k-4<(k+2)x
Since this inequality has no solution, k = -2.
Answer:
r = 2
r = -1
Step-by-step explanation:
So first, we need to get this is order of: ax^2 + bx + c
3r^2 - 6 - 3r
3^2 - 3r - 6
the formula is: -b ± √b^2 -4ac/2a
"ax^2 + bx + c" = "3^2 - 3r - 6"
a = 3
b = -3
c = -6
-b ± √b^2 -4ac/2a
-(-3) ± √(-3)^2 -4(3)(-6)/2(3)
3 ± √9 + (-12)(-6)/6
3 ± √9 + (72)/6
3 ± √9 + 72/6
3 ± √81/6
3 ± 9/6
3 - 9/6
-6/6
-1 = r
3 + 9/6
12/6
2 = r
Formula down below --
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V
<span>Okay, I'm gonna guess that you meant 1024^(3/5), which is much easier to calculate than the other one. ^_^ First thing to recognize is that 1024 is a power of 2. 2^10 = 1024. However, you also know that 2^10 is the same thing as 4^5 (and you could have gone straight to recognizing 1024 as a power of 4 anyway, but meh), so now you know that the fifth root of 1024 is 4. So now what you have is simply 4^3 instead of 1024^(5/3). And of course, 4^3 is just 4*4*4 = 64. Have fun!</span>
8-8^-1
=8-1/8 <<< 8*8=64 then 64-1=63
=63/8
in decimal(7.875)