Answer:
S12 for geometric series: (-7.5) + 15 + (-30) + ... would be: 10237.5
Step-by-step explanation:
Given the sequence to find the sum up-to 12 terms
As we know that
A geometric sequence has a constant ratio 'r' and is defined by
∵ 
Thus, S12 for geometric series: (-7.5) + 15 + (-30) + ... would be: 10237.5
Use the equation 300⇒5x to find how much tim made each day on average.
x⇒60 so, Day 1: $60, Day 2: $70 etc.. so the equation 300=5x+10 suffices the problem. 300⇒5x+10 ⇒ 290=5x
x=58
So, Tim earned $58 his first day. Hope this helped.
Answer:
5:8
Step-by-step explanation:
the ratio equivalent to 5 / 8 is 5:8
Answer:
the answer is incorrect though the first step is correct but the second step is wrong and so is the answer. the correct answer would be x raise to the power of 2by 5
Step-by-step explanation:
{x⁶/⁵⁻²/⁵} ¹/²= {x⁴/⁵}¹/²= x²/⁵
in the second step the power of the denominator must be subtracted from the power of the numerator using the law of indices then we would get the correct answer
12 divided by 4 squared is 12 divided by 2 which is 6
