Find t12 term in an arithmetic progression having t3 = 10 and t10 = −4 .
1 answer:
Answer:
t12= -8
Step-by-step explanation:
t3
a+2d=10 (1)
t10
a+9d=-4. (2)
From (1)
a=10-2d. (3)
Sub into (3) into equ (2)
a+9d=-4
10-2d+9d=-4
10+7d=-4
7d=-4-10
7d=-14
Divide both sides by 7
d=-14/7
d= -2
10=a+2d
10=a+2(-2)
10=a-4
10+4=a
14=a
a=14
t12=a+11d
= 14+11(-2)
=14-22
= -8
t12= -8
You might be interested in
Answer:
12:21
Step-by-step explanation:
4 + 7 = 11
33/11 = 3
3x4=12 & 3x7=21
Therefore, ratio is, 12:21
(-5,6) (-5,-6) (4,-6)
I hope it helps you!!
Answer:
$ 4466.83
Step-by-step explanation:
It says "Federal tax withhold" with the amount.
Coordinates for new triangle -
P’(-1,1)
Q’(-3,3)
R’(-3,1)
15,17,19 thats easy just keep adding two if you want to predict the next numbers
