<u>Given</u>:
The arithmetic sequence is represented in the table.
The general form of the arithmetic sequence is given by

We need to determine the value of the missing term.
<u>First term:</u>
From the table, we need to determine the first term of the arithmetic sequence.
From the table, the value of the first term is 3.
Thus, 
Hence, the first term is 3.
<u>Common difference:</u>
From the table, we can determine the common difference of the arithmetic sequence.
Thus, we have;
12 - 3 = 9
Hence, the common difference is 
<u>Value of the missing term:</u>
The value of the term 45 can be determined by substituting n = 45 in the general form 
Thus, we have;




Hence, the value of the term 45 is 399.
Thus, the value of the missing term is 399.
The answer is 37 20/21 hope this helps :)
Answer: multiplication i think
Step-by-step explanation:
Answer:
they are not congruent
Step-by-step explanation:
look at all the sides to see if they are all the same
Because the triangle is isosceles, angle P and angle R are the same. Thus, your work would be:

. You then simplify this to 6x+4 + 196 - 8x = 180. Combine like terms, you get - 2x = - 20. x = 10.
Plug x = 10 back into the equation 98 - 4x to get 98 - 4(10) which becomes 98 - 40 = 58.
Angle P should be equal to 58 degrees.
To check your work add up the angles to see if they equal 180:
58 + 58 + 6(10) + 4 = 116 + 64 = 180.