Answer:
In short, 0 is the only number such that for any number x, x + 0 = x.
Step-by-step explanation:
So, the reason that any number to the zero power is one is because any number to the zero power is just the product of no numbers at all, which is the multiplicative identity, 1.
<h3>The sum expressed in sigma notation is:</h3>
<u><em>Solution:</em></u>
Given that,
11 + 17 + 23 + 29 + 35 + 41
We have to express the sum in sigma notation
Analyse the series
5 + 6(1) = 11
5 + 6(2) = 17
5 + 6(3) = 5 + 18 = 23
5 + 6(4) = 5 + 24 = 29
5 + 6(5) = 5 + 30 = 35
5 + 6(6) = 5 + 36 = 41
<em><u>Thus the series goes on like this:</u></em>
5 + 6(n) , where n = 1 to 6
<em><u>This can be expressed in sigma notation as:</u></em>
<em><u>We can expand the sigma notation and verify the results</u></em>
Answer:
18+3r
Step-by-step explanation:
-2+5(4+3r)
-2+5×4+3r
-2+20+3r
=18+3r
Friday night, a pizza parlor sold 5 large pizzas and some medium pizzas. The pizza parlor made a total of $291. How many medium pizzas were sold? Medium pizzas cost $9 and large pizzas cost $15
The large pizza costs $15 and earns $75, and the medium pizzas cost $9 and it earns $216. The large pizzas were sold 5, meanwhile, the medium pizzas were sold 24.
<h3>
Why the pizza parlor sold 24 medium pizzas?</h3>
The pizza parlor made $291 from the large and medium pizzas.
The pizza parlor sold 5 large pizzas with cost $15.
5 × $15 = $75
$291 - $75 = $216
The pizza parlor sold … medium pizzas with cost $9.
$216 ÷ $9 = 24
The pizza parlor sold 24 medium pizzas.
Learn more about multiplication:
brainly.com/question/11574429
#SPJ4