Answer:
perimeter is 12x-6
Step-by-step explanation:
perimeter is the sum of all sides
3(x+2) + 2x+11 + 7x-23
distribute the 3 in the first term, then combine 'like terms'
3x+6 + 2x+11 + 7x-23
3x+2x+7x + 6+11+(-23)
12x-6
An = -3 + -2 (n) is the answer. To verify this, start replacing the"n" with numbers like so: 0, 1, 2, 3, 4, 5....etc
25 milligrams is lighter than 25 centigrams
let n take values 1,2,3... infinity
then the sequence is:
(0,1/n)
for every number greater than zero there exist such n that (0,1/n) does not contain that number.
Answer:
$24.88
Step-by-step explanation:
<u><em>Given:</em></u>
<em>Samantha needs to purchase 7 notebooks at </em>
<em>$2.99 each and 5 pencils at $0.79 each. </em>
<u><em>To Find:</em></u>
<em>About how much will Samantha spend before sales tax?</em>
<u><em>Solution:</em></u>
<em>All we have to do is multiply and then add. </em>
<em>Starting with NoteBook;</em>
<em>Since each notebook cost - $2.99</em>
<em>Then 7 Notebook..</em>
<em>7 × $2.99</em>
<em>= $20.93</em>
<em>Now with Pencil;</em>
<em>Since each pencil cost - $0.79</em>
<em>Then 5 Pencil..</em>
<em>5 × 0.79</em>
<em>= $3.95</em>
<em>As a result, we add both together</em>
<em>$20.93 + $3.95</em>
<em>=$24.88</em>
<u><em>RevyBreeze~</em></u>