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WITCHER [35]
3 years ago
9

In an arithmetic progession T7 =20 and T13 =38,. Find the first term and the common difference. ​

Mathematics
1 answer:
dalvyx [7]3 years ago
5 0
The first term is two.
The common difference is three. Hope this helps!
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Solve 247 divided by 10(^2) . and 247x10 (^2)<br><br> what's different about the two answers?
guajiro [1.7K]
247 divided by 10^2 is 2.47 and 247 times 10^2 is 24,700

6 0
4 years ago
8 9 10 11 12 13 14 15 16 17 18 19 20You and two friends (Adam and Alana) wonly play a game if it is fair for all three of you. T
pav-90 [236]
Well I don't know ! 
Let's take a look and see:

The idea is that there could be more than one way
for a roll of the dice to land with the same number.  

-- If the sum is from 1-4, you get the point.
There are  6  different ways for a roll of the dice to come up 1-4.

-- If the sum is from 5-8, Adam gets the point.
There are  20  different ways for a roll of the dice to come up 5-8.

-- If the sum is 9-12, Lana gets the point.
There are  10  different ways for a roll of the dice to come up 9-12.

-- The game is not fair to all three of you.
-- Lana has a distinct advantage over you.
-- Adam has a big advantage over Lana.
-- Adam has an even bigger advantage over you.
-- You are at a big disadvantage.  (Notice that one of your
numbers ... 1 ... can never come up unless one of the dice
falls off of the table.)
_______________________________

Here's how to figure it:

Ways to roll a 2:
1 ... 1

Ways to roll a 3:
1 ... 2
2 ... 1

Ways to roll a 4:
1 ... 3
2 ... 2
3 ... 1

Ways to roll a 5:
1 ... 4
2 ... 3
3 ... 2
4 ... 1

Ways to roll a 6:
1 ... 5
2 ... 4
3 ... 3
4 ... 2
5 ... 1

Ways to roll a 7:
1 ... 6
2 ... 5
3 ... 4
4 ... 3
5 ... 2
6 ... 1

Ways to roll an 8:
2 ... 6
3 ... 5
4 ... 4
5 ... 3
6 ... 2

Ways to roll a 9:
3 ... 6
4 ... 5
5 ... 4
6 ... 3

Ways to roll a 10:
4 ... 6
5 ... 5
6 ... 4

Ways to roll 11:
5 ... 6
6 ... 5

Ways to roll 12:
6 ... 6

5 0
3 years ago
If f(x) = 2x - 9, which of the following are correct?
matrenka [14]
F(-1) = -11
f(0) = -9
f(3) = -3
3 0
4 years ago
Solve 3 over x minus 3 equals the quantity of x over x minus 3, minus three-halves. for x and determine if the solution is extra
astraxan [27]
\frac{3}{x} -3 = \frac{x}{x}  -  \frac{3}{2}
3 -3x = x - \frac{3x}{2}
-6x -2x -x = 6
-9x=6
9x=6
x= \frac{6}{9}= \frac{2}{3}
3 0
3 years ago
For each of the following action-selection methods, indicate which option describes it best.
Alexus [3.1K]

Answer:

The answer to thia question acn be defined as follows:

In question 1 the answer is "Option b".

In question 2 the answer is  "Option a"

Step-by-step explanation:

  • The use of such resources is also an example of using natural resources and for the construction of the community.
  •  It's just an example of greed to take advantage of another's need for work and pay the others only extra bucks to perform tasks and you'll get rich.
  • Its concept with randomness is also an event that also occurs without order or rationale. It is an example of randomness, in which the closing your eyes and selecting one of the two choices.
5 0
3 years ago
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