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Lina20 [59]
3 years ago
15

If repetition is not allowed, how many 4 letter codes can be formed from only 5 letters of the alphabet?

Mathematics
1 answer:
lions [1.4K]3 years ago
8 0
Well, If you want 4 letter codes with 5 letters, would be 5 x 4 x 3 x 2 which is 430. (It gets less because If you use one letter you cant use it again.)
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How to put 1/2 and 3/4 as a pair of fractions with a common denominator
dolphi86 [110]

Answer:

2/4 and 3/4

Step-by-step explanation:

To make both fractions have the same denominator, multiply 1/2 by 2. 1/2 times 2 equals 2/4

8 0
3 years ago
If f(x) = -2x2 + x – 5, what is f(3)?
exis [7]

F(3)=2x2-3-5

= 4-3-5

=1-5

=-4

8 0
3 years ago
3/4x+5−1/2x=3 what is the value of x?
dimaraw [331]

Answer:

-1/8 is the answer

Step-by-step explanation:

1.) 1st we have to take 1/2x and make the bottom number 4. so we multiply by 2 and you should get 2/4.

2.) so now the equation should be 3/4x + 5 -2/4x = 3. now you take 3/4x and -2/4x and subtract them and you should get 1/4x.

3.) now the equation should look like 1/4x + 5 = 3. now we need to get all whole numbers to one side. so we will subtract 5 from 5 and that will cancel it out and we need to do that to both sides. so we will subtract 5 from 3 and you will get -2.

4.) now the equation should look like 1/4x = -2. now you put a 1 under the 2 to make it a fraction. it should look like 2/1 and then you are going to flip it because that is how you divide fractions. so now your equation should look like 1/4x = 1/2. now you multiply strait across both bottom and top. and you will get x = -1/8 and that is your answer.

hope this helped!

p.s it would be cool if you gave me brainliest.      

7 0
3 years ago
PLEASSEEE HELP AS FAST AS YOU CAN!!! I put the picture. 10 points!!
iogann1982 [59]

Answer:

<h2>x = 129</h2>

Step-by-step explanation:

3 0
3 years ago
Amber is solving this problem. 252 × 605.
expeople1 [14]
The answer would be A
6 0
3 years ago
Read 2 more answers
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