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pochemuha
3 years ago
7

The combination lock has three wheels, each numbered from 0 to 9. What is the probability that someone randomly guesses the corr

ect combination in one attempt?
Mathematics
1 answer:
Karolina [17]3 years ago
5 0
Since it is not mentioned in the problem, we will assume that repeating of number is allowed.
For the first wheel, you have 10 possible digits.
For the second wheel, you have 10 possible digits.
For the third wheel, you have 10 possible digits.
10 x 10 x 10 = 1000
The probability that someone randomly guesses the correct combination in his first attempt is 1/1000.

If this was without repeat, then 
10*9*8 = 720
The probability that someone randomly guesses the correct combination in his first attempt is 1/720.
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Given the following exponential function, identify whether the change represents growth or decay , and determine the percentage
jenyasd209 [6]

Answer:

It is growth and the percentage rate of increase is 7.5%

Step-by-step explanation:

The exponential equation is as follows;

y = 550(1.075)^x

Now, I can identify that the exponential equation is that of growth.

This is because what is in the bracket i.e can be represented as 1+ 0.075

The 0.075 represents the margin of increase as we move on from one value to another

The percentage rate can be gotten by expressing 0.075 as a percentage

That would be expressing is as a fraction

This is just 7.5/100 which means what we have is 7.5%

8 0
3 years ago
An approximate formula for the surface area of the body in square metres is:
Vera_Pavlovna [14]

Answer:

I am the globobobo

Step-by-step explanation:

I am the golboboob

4 0
3 years ago
ANSWER ASAP!! GIVING BRAINLIEST TO FIRST PERSON TO ANSWER BOTH QUESTIONS!!!
matrenka [14]

Answer:

The answer to your question is:

x = 1

Square's perimeter = 12

Rectangle perimeter = 12

The value of x is one and the perimeter of the square and the rectangle is the same.

Step-by-step explanation:

Data

Side of Square = 4x - 1

Length of rectangle = 2x + 1

Width = x + 2

Perimeters are the same

Process

Square perimeter = 4(4x - 1)

Rectangle's perimeter = 2(2x + 1) + 2(x+ 2)

Then

                 4(4x - 1) =  2(2x + 1) + 2(x+ 2)       Equation

                 16x - 4 = 4x + 2 + 2x + 4      

                 16x - 4 = 6x + 6

                 16x - 6x = 6 + 4

                 10x = 10

                 x = 10 / 10

                 x = 1      

Perimeter of the square = 4(4(1) - 1)

                                        = 4(3)

                                        = 12

Perimeter of the rectangle = 2(2(1) + 1) + 2((1)+ 2)

                                            = 2(3) + 2(3)

                                            = 6 + 6

                                            = 12

8 0
3 years ago
Which of the following sets of numbers could be the lengths of the sides of a triangle ?
olga_2 [115]
If the sum of any 2 sides is equal to or less than the third side it is Not a triangle.

So A :- we have 2+4 = 6 so its not a triangle.

also D is not a triangle because 8+3 < 12


what about B and C?
3 0
3 years ago
Read 2 more answers
4. the weight of a liquid varies directly as its volume v. of the weight of the liquid
My name is Ann [436]
B 129G i’m pretty sure
8 0
2 years ago
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