A triangular sail has a bace of 5 m and a
height of 10 m. If canvas costs $18 a
square meter, lind the cost of canvas to
make the sail

i really do not know lamo this is great

im pretty sure it would be 5 am, hope that , and give brainliest and guys if this is right then press the button and give 5 stars

, and

for

step-by-step explanation:

we can analyze the pattern at which the terms increase. let us denote , , , so that we can call

note the following:

the pattern: to get the next term value, we just add the next term number (e.g. 1st, 2nd, to the previous term value (term values are the given numbers in the question, 1, 3, 6, 10, 15,

from , to get to , we add

from , to get to , we add

etc.

we need to form a recursive formula, a formula that has the next term as a function of the previous term. so a possible recursive formula can be

, and for

faster, im not sure why but i know it is faster