Answer:
x={2,3}
Step-by-step explanation:
√5x-6=x
5x-6=x^2
x^2-5x+6=0
x^2-3x-2x+6=0
(x^2-3x)-(2x-6)=0
x(x-3)-2(x-3)=0
(x-2)*(x-3)=0
x-2=0
x=2
x-3=0
x=3
Answer:
E1. 1/x^5
E2. not totally sure how to use positive exponents here
E3. x^4/y^2
E4. x^2/2
Step-by-step explanation:
remember if there is a negative exponent in the numerator, moving it to the denominator makes it positive. vice versa for the denominator to numerator
Answer: z-1 (6) = 0
Step-by-step explanation:
I suppose that the notation:
(z-1)(x) refers to the inverse function of z(x).
Now, by definition, we know that:
if z(x) = y
then z-1(y) = x.
Now we want to find the value of z-1(6)
This value will be equal to the input that we need have:
z(x) = 6.
By looking at the graph, we can see that the value of the function is 6 when x = 0.
then:
z (0) = 6
This implies that:
z-1 (6) = 0
P(5 and 5) = 1/2*1/2 = 1/4
P(3 and 5) = 1/6*1/2 = 1/12
P(5 and 3) = 1/12
P(3 and 3) = 1/6*1/6 = 1/36
P(6 and 6) = 1/3 * 1/3 = 1/9
Required probabilitty = 1/4 + 2*1/12 + 1/36 + 1/9 = 5/9 answer
Answer:
Option A
Step-by-step explanation:
we start with 12 red marbles out of 25 marbles, that's the probability for the first.
in the second step we have one red marble less, wich also means one marble less overall
and so on
can be reduced by 1320 (step by step) to