$37.25 must be payed for the total time of 115 minutes.
<u>Step-by-step explanation:</u>
- The cost for 1st 45 minutes = $12.75
- The cost per minute for additional 2 hours = $0.35
- The cost per minute for additional time after 2 hours = $0.25
x be the total time spent in minutes,
It is given that the total time spent, x = 115 minutes.
<u>To find the cost to pay for 115 minutes :</u>
The first 45 minutes out of 115 minutes should be payed $12.75
Therefore, the remaining minutes is 115 - 45 = 70 minutes.
The additional 2 hours (120 minutes) should be payed $0.35 per minutes.
But, in this case the additional time is only 70 minutes.
⇒ 70 × 0.35
⇒ $24.5
The total amount to be payed for 115 minutes = $12.75 + $24.5
⇒ $37.25
Answer:
a) true
Step-by-step explanation:
The bottom-line numbers from synthetic division <em>alternate signs</em>, indicating that -2 is a lower bound. The given statement is true.
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If the signs were all positive, it would indicate the proposed zero is an <em>upper bound</em>.
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A graph shows all real zeros are greater than -2.
