Answer:
- 494
Step-by-step explanation:
Breaking down the summation into it;s component parts
= 4k -
k(k + 1) ← substitute k = 19
= (4 × 19 ) - 1.5 × (19 × 20)
= 76 - (1.5 × 380)
= 76 - 570
= 494
Answer:
25
Step-by-step explanation:
a box contians× means 5×5=25
Answer:
5*4 = 20
20 + 3 = 23
answer : 23
Step-by-step explanation:
GX is the angle bisector. Answer is C
I honestly don't know or I would have replied. Sorry :(