6
9x is rate of function
3x is rate of function
y=mx+b
Answer:
2x = -5 +/- root 5 (opt 3)
Step-by-step explanation:
0 = 4f(x)
= 4(x^2 + 5x + 5)
= 4x^2 + 20x + 20
= (2x)^2 + 2*2x+5 + 25 - 5
= (2x + 5)^2 - (root 5)^2
= ((2x+5) - 5) ((2x + 5) + 5)
= (2x + 5 - 5) (2x + 5 - 5)
Therefore, 2x = -5 +/- root 5
Hope u understand.
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Answer:
Step-by-step explanation:
x - x0 53 - 47 6
The z-score formula is z = --------------- = --------------- = -------- ≈ 0.55
sigma 11 11
If jeanette had $936 in her checking account then the money in her savings account was 1/6 of this which is $156
Thats a total of 936 + 156 = $1092.
After moving the money to savings account the ratio savings : checking in 4:3 so she has 4/7 * 1092 = $624 in savings and 3/7 * 1092 = $468 in checking account.
Answer: 624 dollars in savings and 468 dollars in the checking account