C is the worst answer. All other options include a responsible and accurate analysis of her options, although some may be better than others. Options C ignores the fact that a variable interest can also go down, which will cause her to earn a lower interest than the fixed rate.
Answer: The answer should be 0.
Step-by-step explanation:
Remove your parenthesis: 4x times 3x times 0 times -7x²
4 times x= 4
4 times 3= 12
12 times 0= 0
0 times 7x²=0
Answer:
1, 3, 7, 21!
Step-by-step explanation:
GP is given by = arⁿ⁻¹
First term of GP = 2/5, a = 2/5 ......(i)
Third term = 1/10, ar² = 1/10 ......(ii)
(ii) ÷ (i)
ar² ÷ a = (1/10) ÷ (2/5)
r² = 1/10 × 5/2
r² = 1/4 Take square root of both sides
r = √(1/4)
r = 1/2.
Common ratio = 1/2.