Sum the numbers i through 19.
write a paragraph on how you
obtained the sum.
i need plz asap and you

The sum is 190.

Step-by-step explanation:

This is an arithmetic  series with first term 1, common difference 1 , last term 19 and containing a total of 19 terms.

Sum of n terms an = (n/2)[a1 + L] where a1 = the first term and L = the last term.

So here, a19 = (19/2)( 1 + 19)

= 9.5 * 20

= 190.

0.16 or 16%

step-by-step explanation:

lets take a coin for example.

if you toss it twice, it has a 1/4 chance of landing on heads both times because 1/2 * 1/2 is 1/4.

with the cards, the chance of picking dog is 0.4. having two people pick one is like picking a card twice in a row. so 0.4 * 0.4 is 0.16, or 16%

step-by-step explanation:

consider an orange peel: if you want to try and lay it flat, you have to stretch it, we know exactly how things are being stretched or squashed at any given point. we have many different map projections because each has different patterns of some projections can even preserve certain features of the earth without