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konstantin123 [22]
3 years ago
12

There are 10 keys and only one of them can open a lock. We do not know which key can open the lock, but we will try them one by

one until we find the right key. Let X denote the number of times tried to find the right key what is the pmf of X
Mathematics
1 answer:
CaHeK987 [17]3 years ago
7 0

Answer:

thhhhhhheeeeeeeee p.m.f of x

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Michael puts 3 beads next to each other on a pice of string to make a bracelet. Each bead has a width of 5/6 inch. Which express
pentagon [3]

Answer:

3 (5/6)

 5/2

Step-by-step explanation:

Hi, to answer this question we have to write an expression with the information given.

The total width of the three beads  must be equal to the number of beads (3) multiplied by the length of each bead (5/6)

Mathematically speaking:

3 (5/6)

Solving:

5/2

Feel free to ask for more if needed or if you did not understand something.

8 0
3 years ago
Compare 10x(8+2) and 20x(8+2)
Artist 52 [7]

the 20x(8+2) is just two times greater as its 200 instead of 100 which is the other answer

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3 years ago
The polynomial 4x^3 - 6x^2 + 8x – 12 can be grouped in different ways to factor by
zubka84 [21]

Answer:

(4x3-6x) + (8x-12)= 2x

(4x3+8x) + (-6x2-12)= 2(2x-3) (x^2+2)

Step-by-step explanation:

All you have to do is simplify.

8 0
3 years ago
This is the right table my bad. Need the equation
Mamont248 [21]
Hi, seems like the answer is f(x) = x - 4 Edit: this was my original answer, but I was apparently completely out of my mind when I wrote it. The correct answer is f(x) = -4x + 50, as I stated below. I'm very sorry for any trouble I caused
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3 years ago
Read 2 more answers
What is the interval notation for the compound inequality? x is less than or equal to -4 or x is greater than or equal to 5?
Tems11 [23]

x is less than or equal to -4 or x is greater than or equal to 5

x <= -4 or x>= 5

There is no intersection of both inequalities when we graph it in number line So, we write the interval notation separately for each inequality

for x<=-4 , x starts at -4  and goes to -infinity because we have less than symbol. Also we have = sign so we use square brackets

Interval notation is (-∞ , -4]

for x>= 5 , x starts at 5  and goes to infinity because we have greater than symbol. Also we have = sign so we use square bracket at 5

Interval notation is [5 , ∞)

Now combine both notation by a 'U' symbol Union

(-∞ , -4] U [5 , ∞)

5 0
3 years ago
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