A combination lock has 5 different numbers. If each number can only be used ONCE, how many different combinations are possible?

Answers

Answer 1
Answer: Hello,

The first digit may be 0,1,2..,9 thus 10 possibilities
The second digit may be 0,1,2,3...,9 but not equal to the first thus 9 possibilities
The 3th digit may be 0,1,2..,9 but not the first and not the 2th =>8 possibiliteis
...
In  Total, 10*9*8*7*6 combinations.

Related Questions

The sum of a number and twice is square is 36.find the numbers?
The trees at a national park have been increasing in numbers. There were 1,000 trees in the first year that the park started tracking them. Since then, there have been as many new trees each year. Create the sigma notation showing the infinite growth of the trees and find the sum, if possible. Year New trees 1 1000 2 200 3 40
Add.–4.75 + 2.19a. –6.94b. –2.56c. 2.56d. 6.94
Explain why there must be at least two lines on any given plane.
Solve for x 7x-3=5x+5=

Write cos 53 degrees in terms of sine.

Answers

The value of cos 53 degrees in terms of sine is,

⇒ sin 37 degree

What is mean by Angle?

An angle is a combination of two rays (half-lines) with a common endpoint. The latter is known as the vertex of the angle and the rays as the sides, sometimes as the legs and sometimes the arms of the angle.

We have to given that;

⇒ cos 53 degree

Hence, We can change it into sine as;

⇒ cos 53 degree

⇒ sin (90 - 53)

⇒ sin 37 degree

Thus, The value of cos 53 degrees in terms of sine is,

⇒ sin 37 degree

Learn more about the angle visit:;

brainly.com/question/25716982

#SPJ2

cos(x) = sin(90 - x)
cos(53) = sin(90 - 53)
cos(53) = sin(37)

F(x)=-(x+2)²+2f(0)=-(0+2)²+2 = ??
f(1)=-(1+2)²+2 = ??
f(2)=-(2+2)²+2 = ??
f(3)=-(3+2)²+2 = ??
f(4)=-(4+2)²+2 = ??
Helpp

Answers

f(0)=-(0+2)²+2 = -1*(2)² + 2 = -4 + 2 = -2        y =-2
element of the set x = 0 attribute to an element of a set of y ( calculated y = -2 )
f(1)=-(1+2)²+2 = -1*(3)² + 2 = -9 + 2 = -7        y = -7
element of the set x = 1 attribute to an element of a set of y ( calculated y = -7 )
f(2)=-(2+2)²+2 = -1*(4)² + 2 = -16 + 2 = -14    y = -14
element of the set x = 2 attribute to an element of a set of y ( calculated y = -14 )
f(3)=-(3+2)²+2 = -1*(5)² + 2 = -25 + 2 = -23    y = -23
element of the set x = 3 attribute to an element of a set of y ( calculated y = -23 )
f(4)=-(4+2)²+2 = -1*(6)² + 2 = -36 + 2 = -34    y = -34
element of the set x = 4 attribute to an element of a set of y ( calculated y = -34 )

Answer:

f(0)=-(0+2)²+2 = -1*(2)² + 2 = -4 + 2 = -2        y =-2

element of the set x = 0 attribute to an element of a set of y ( calculated y = -2 )

f(1)=-(1+2)²+2 = -1*(3)² + 2 = -9 + 2 = -7        y = -7

element of the set x = 1 attribute to an element of a set of y ( calculated y = -7 )

f(2)=-(2+2)²+2 = -1*(4)² + 2 = -16 + 2 = -14    y = -14

element of the set x = 2 attribute to an element of a set of y ( calculated y = -14 )

f(3)=-(3+2)²+2 = -1*(5)² + 2 = -25 + 2 = -23    y = -23

element of the set x = 3 attribute to an element of a set of y ( calculated y = -23 )

f(4)=-(4+2)²+2 = -1*(6)² + 2 = -36 + 2 = -34    y = -34

element of the set x = 4 attribute to an element of a set of y ( calculated y = -34 )

Find the midpoint of jn

Answers

/ represents divided by
Midpoint = (10-4)/2, (-2+6)/2
Midpoint = 6/2, 4/2
Midpoint = 3, 2
The midpoint is (3, 2)

Answer:

(3,2)

Step-by-step explanation:

Use the midpoint formula.

Add the x's together and then divide that by 2. Then do the same thing for the y's.

10+(-4)=6; 6/2=3

-2+6=4; 4/2=2

So, m=(3,2)

Change 12.39% to a decimal

Answers


To change a number to percent, move the
decimal point 2 places that way ==> .

To change a percent to a number, move the
decimal point 2 places this way <== .

               12.39%  =  0.1239 .

Answer:

The answar is 0.1239

Step-by-step explanation:

The percent sign tells un to divide 12.39 by a hundred(12.39/100). Divide 12.39 by hundred and you get 0.1239



To make 2 batches of nut bars, jayda needs to use 4 eggs. How many eggs are used in each batch of nut jars?

Answers

4/2=2
2 eggs are used in each batch

A clock shows 5:00. What time is it after the minute hand rotates 90 degrees?

Answers

5:15 Because Rotating 90 Degrees would be at the 3 so. 5:15

Each 90° rotation of the minute hand correspond to 15 minutes.
So will be 5.15 hs