Answer:
<em>(A). 6 units</em>
Step-by-step explanation:
Lucy pays $224 dollars in advance on her account at the health club. Each time she visits the club, $7 is deducted from the acco
1 answer:
Answer:
<h2> -7 is the slope.</h2><h2>It intercept Y at 224.</h2><h2>It is proportional.</h2>Step-by-step explanation:
Lucy pays $224 initially, hence the initial amount of her account is $224.
$7 is deducted each time she visits the club.
Hence after visiting first time, the account will have
If she visits second time, then the account will have .
That is with visiting each time, an amount of multiple of $7 is deducted from the account.
Hence, if we take Y as the amount in the account and X as the number of visiting s, then it can be represented as
; X is integers.
In the above equation, the term that is multiplied with X is -7, so -7 is the slope.
If X = 0, then Y = 224. It intercept Y at 224.
With X increasing, Y decreases, hence it is proportional.
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Complete Question
The complete question is shown on the first uploaded image
Answer:
The value is
Step-by-step explanation:
From the question we are told to obtain the area to the of the z-score 1.39 and to the left of the z-score 1.53, this is mathematically represented as
From the z table on the question the area under the normal curve to the left corresponding to 1.53 and 1.39 is
and
So
=>
