Answer:
D 45.6 Square centimetres
Step-by-step explanation:
8 cm time 5.7 cm
If you meant 12 1/4 inches long then your 4 feet and 1 inch long or 49 inches.
Answer:
If (14,20) is an option that would be your answer.
Answer:
40 terms
Step-by-step explanation:
the sum to n terms of an arithmetic sequence is
= (a₁ + )
then
(- 4 - 82) = - 1720 ( multiply both sides by 2 to clear the fraction )
- 86n = - 3440 ( divide both sides by - 86 )
n = 40
the series has 40 terms