Answer: 70
Step-by-step explanation:
Because opposite sides of a parallelogram are equal, AB=CD. So,
2x-10=x+30
x=40
Therefore, AB=2(40)-10=70
<u>Answer:</u>
a(n) = 130 + (n-1) 13
13th term = 286
<u>Step-by-step explanation:</u>
We are given a sequence of numbers: 130, 143, 156, 169, ... and we are to write an explicit formula to represent the arithmetic sequence and use it to find the 13th term.
We know that the arithmetic sequence can be defined by:
where 
= the common difference between consecutive terms ; and
=
<u>13th term:</u>
Therefore, the formula for this sequence will be a(n) = 130 + (n-1) 13 and 13th term is 286.
Hello from MrBillDoesMath!
Answer:
Rule: Y = 5x - 3
Table Line 4: Y (output) = 37
Table Line 5: X (input) = 10
Discussion:
This one had MrBill going for a while! The rule appears to be
Y = 5 * x - 3
Check it out! Substitute some table values (input) and check the (output) values.
Table line 4: Y(8) = 5 * 8 - 3 = 40 - 3 = 37 (Output)
Table line 5: If Y = 47 = 5*x -3 => add 3 to both sides
47 + 3= 5x => as 47 +3 = 50
50 = 5x => divide both sides by 5
x = 50/5 = 10 (input)
Thank you,
MrB
Answer:
The square root would be something that multiplies twice by itself to get 39.
Step-by-step explanation:
In this case it is a decimal
6.244997998
We can round to
6.24
