A² + 4a + 3
(a+3)(a+1) This is the length and the width of the rectangle.
Perimeter = length + length + width + width
P = (a+3) + (a+3) + (a+1) + (a+1)
P = a + a + a + a + 3 + 3 + 1 + 1
P = 4a + 6 + 2
P = 4a + 8
B) 4a + 8
Answer:
$133.56
Step-by-step explanation:
Multiply 180 and .3 and then subtract that number with 180
you should then get 126
multiply 126 by .06 you should get 7.56
Finally add 126 and 7.56 you should get your final price of 133.56
Answer:
175
Step-by-step explanation:
It is simplified
The answer is going to be A.
The explicit formula is an= 4.2* 
.
The correct option is (b)
<h3>What is explicit formula?</h3>
The explicit formula for a geometric sequence is of the form an = a1r-1, where r is the common ratio.
Given sequence: {4.2, 3.57, 3.0345, 2.5793, …}
General formula 
an=4.2* 
an= 4.2*
Hence, an= 4.2*
Learn more about this concept here:
brainly.com/question/18069156
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