She used the area of a square formula instead of area of a rectangle. she should have done A =(1/2)(19)(18) and gotten 171 in^2
A percent beacause it can be more beneficial and alot more exact
The complete sequence is<u> 24, 30, 36, 42, 48, 54, 60</u>
<h3>The nth term of an arithmetic progression</h3>
The nth term of an arithmetic progression is expressed according to the equation;
Tn = a + (n-1)d
where
a is the first term
n is the number of terms
d is the common difference
Determine the common difference
d = 42-b = b - 30
-b-b = -30-42
-2b = -72
b = 36
d = 36-30
d = 6
For the first term;
d = 30 - a
6 = 30 - a
a = 24
For the value of c
c = 42 + 6
c = 48
For the value of d
d = 48 + 6
d = 54
For the value of e
e = 54 + 6
e = 60
Hence the complete sequence is<u> 24, 30, 36, 42, 48, 54, 60</u>
Learn more on arithmetic sequence here: brainly.com/question/24989563
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Answer:
x+16
Step-by-step explanation:
your simplifying so you only combine like terms.
12 and 4 dont have any variables following them so you add the two.
12+4=16
there is only 1 x in the expression so just add it on.
16+x
there are no more like terms so you leave it as it is.
