This is the sum of the arithmetic sequence:
10 - 2 + 6 + 14 + ... + 110
where: a 1 = - 10, d = 8
a n = 110
a n = a 1 + ( n - 1 ) * d
110 = - 10 + ( n - 1 ) * 8
110 = - 10 + 8 n - 8
110 + 10 + 8 = 8 n
128 = 8 n
n = 128 : 8
n = 16
∑ n = n/2 * ( a 1 + a n )
∑ 16 = 16/2 * ( -10 + 110 ) = 8 * 100 = 800
Answer:
The sum is 800.
Answer:
100
Step-by-step explanation:
1=ad=100
and I need more characters so don't mind me.
Answer:
the amount of sides, angels and sides that are parellel.
Step-by-step explanation:
Let's check every choices until one choices satisfy the graph :
Choice A is just a translation of -5 units or 5 units to the left
If we look at the graph between A"B"C" and A'B'C'
A"B"C" is 5 units to the left of A'B'C'
Therefore Choice A is True!
The correct answer is A.
No need to check for the other choices since you got a true statement at the first Choice.
IF in case that A is False, then you need to check the other choices.
Answer:
Angles KNL and JNM are vertical angles so they are equal so
10y - 12 = 8y + 4
2y = 16
y = 8
So angle KNL = 10y - 12 = 10(8) - 12 = 80 - 12 = 68�
and, as a check
Angle JNM = 8y + 4 = 8(8) + 4 = 64 + 4 = 68�
Step-by-step explanation:
