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Murrr4er [49]
3 years ago
7

Are these right? If not can you please tell me how to do it!!

Mathematics
1 answer:
fenix001 [56]3 years ago
5 0
Yes it's good! Nice Job!
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How many 3-letter combinations can be made from this set if no letter can be repeated?
Wittaler [7]

Answer:

B 120 different combinations

Step-by-step explanation:

There are 6 letters to choose from

Picking a letter for the first spot  6

Then there are 5 letters left

Picking a letter for the second spot  5

Then there are 4 letters left

Picking a letter for the second spot  4

6*5*4

= 120

7 0
3 years ago
Choose the most convenient method to graph the line x - y = 5.
givi [52]
The most convenient method I would choose is slope-intercept form, which is y=mx+b. So, make this equation equal in terms of y.

x-y=5
subtract x from both sides
-y = 5 - x
multiply both sides by -1 so y isn't negative
y = 5 + x
5 +x is the same thing as x+5, so
y = x+5

Now, you can easily sub in any number for x and you can easily get y. Here are some points you can plot:

(0, 5), (1, 6), (2, 7), (3, 8) and the list goes on. I hope this helped!
7 0
2 years ago
Read 2 more answers
For the function x^2+8x+7<br> evaluate f(4)
taurus [48]

Answer:

I think you would have to plug in 4 as X so it would be 4^2 +8(4)+ 7

that would be 16+ 32 +7 and that would equal 55

4 0
2 years ago
A tank can hold 300 cm^3 of water. How much would Tim have to pay If he has to fill 12 such tanks with water at 25 cents per cm^
katrin [286]
What class is this for?
8 0
3 years ago
What are the coordinates of P?
Zepler [3.9K]
The answer is eight
3 0
3 years ago
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