Answer:
The sum of 12 terms of AP = -318
Step-by-step explanation:
Points to remember
Sum of n terms of an AP
Sₙ = n/2[ 2a + (n - 1)d]
Where n - number of terms
a - first term
d - common difference
<u>To find the sum of 12 terms</u>
The given AP is 1, -4, -9, -14, . . .
a = 1, d= -5 and n = 12
Sₙ = n/2[ 2a + (n - 1)d]
= 12/2[2*1 + (12 - 1)*(-5)]
= 6[2 + (11*(-5))]
= 6[2 - 55]
= 6 * (-53)
= -318
The sum of 12 terms of AP = -318
The answer would be 1 1/3 plotted over the 1 to 1 1/3
9.92
You must look at which number has the decimal closest to 9.99
Here are the numbers in order from least to greatest
9.81, 9.82, 9.83, 9.92
Hope this helped!
~Just a girl in love with Shawn Mendes
The answer is 10 because x is = to 12 because it is a square and the first two sides add up to 20
