Find the sum of 14 + 8 + 2+ ... + ( 274) + (-280).

The sum of the given sequence is -6384.

Step-by-step explanation:

The given Arithmetic sequence is 14 + 8 + 2+ ... + ( 274) + (-280).

To find the number of terms in the sequence :

The formula used is

where,

Therefore,

⇒

⇒

⇒

⇒ n = 48, since n cannot be negative.

∴ The number of terms, n = 48.

To find the sum of the arithmetic progression :

The formula used is

where,

Therefore,

⇒

⇒

⇒

∴ The sum of the given sequence is -6384.

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%

is means division by fractions

step-by-step explanation: