189.
3*1=34 --> split this into two parts. 3*1 is 3 and 3+1 is 4 so put them together and you get 34.
There are 98 terms.
98*(33+130)/2 = 7987
See the attached picture:
Answer:
482
Step-by-step explanation:
Their 2nd difference is 12
Answer:
A. Perpendicular Lines
B. Circle
C. Angle
D. Plane
E. Parallel Lines
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Step-by-step explanation: