Answer: I think it is b
Step-by-step explanation:
Answer: There were 8 granola bars in each box, x = 8.
Step-by-step explanation:
The first step is write an equation:
4x + 5x = 72
The second step is to combine like terms:
4x + 5x = 72
9x = 72
Step 3 is to use the properties of equality and inverse operations to solve the equation:
9x/9 = 72/9
x = 8
Since x = 8, there were 8 granola bars in each box.
I hope I helped and have a great day! Please mark me brainliest. ^-^
Answer:
z^2 + (-1 + 5·i)·z + 14 - 7·i = 0
(1 + 2·i)^2 + (-1 + 5·i)·(1 + 2·i) + 14 - 7·i = 0
(1 + 4·i - 4) + (-1 - 2·i + 5·i - 10) + 14 - 7·i = 0
0 = 0 --> true
z^2 + (-1 + 5·i)·z + 14 - 7·i = 0
(1 - 2·i)^2 + (-1 + 5·i)·(1 - 2·i) + 14 - 7·i = 0
(1 - 4·i - 4) + (-1 + 2·i + 5·i + 10) + 14 - 7·i = 0
20 - 4·i = 0 --> false
The z-value for a confidence level of 95% is 1.960, and for a confidence level of 98% is 2.326.
The MoE at a confidence level of 98% will become:
