898 rounded answer is 900
Answer:
21
Step-by-step explanation:
Given the following expressions
f(x) = x³-2x
g(x) =-x-2
We are to find (fog)(-5)
fog = f(g(x))
f(g(x)) = f(-x-2)
Replace x with -x-2 in f(x)
f(-x-2) = (-x-2)³-2(-x-2)
f(-x-2) = (-x-2)³+2x+4
fog = (-x-2)³+2x+4
Substitute x = -5 into the result
fog(-5) = (-x-2)³+2x+4
fog(-5) = (-(-5)-2)³+2(-5)+4
fog(-5) = (5-2)³-10+4
fog(-5) = 3³-6
fog(-5) = 27-6
fog(-5) = 21
Hence the required result of the composite function is 21
Hello,
first we have to descompose the number:
128 | 2
64 | 2
32 | 2
16 | 2
8 | 2
4 | 2
2 | 2
1
So:

Therefore:

You must know these properties:
![\sqrt{a*b} = \sqrt{a} * \sqrt{b}\\ \\ \sqrt[b]{x^a}= x^{ \frac{a}{b}}](https://tex.z-dn.net/?f=%20%5Csqrt%7Ba%2Ab%7D%20%3D%20%5Csqrt%7Ba%7D%20%2A%20%5Csqrt%7Bb%7D%5C%5C%20%5C%5C%20%5Csqrt%5Bb%5D%7Bx%5Ea%7D%3D%20x%5E%7B%20%5Cfrac%7Ba%7D%7Bb%7D%7D%20)
then:
Answer:
X = -6.372281, -5.561553, -1.438447, -0.627719
Step-by-step explanation:
Use quartic formula.