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sdas [7]
3 years ago
15

(a) A color printer prints 7 pages in 4 minutes. How many pages does it print per minute?

Mathematics
1 answer:
rosijanka [135]3 years ago
7 0

Answer:

\frac{7}{4}

Step-by-step explanation:

7÷4

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Given that f(x)=x^2-3x-54 and g(x)=x+6, find (f•g)(x) and express the result in standard form
love history [14]

Answer:

׳+3ײ-72×-324

Step-by-step explanation:

I hope it help

7 0
2 years ago
The temperature, H, in degrees Celsius, of a cup of coffee placed on the kitchen counter is given by H = f(t), where t is in min
Deffense [45]

Answer:

a

    f'(t) is  negative

b

 The  unit is degC/min

c

At <u>35</u> minutes after the coffee was put on the counter, its temperature is <u>68</u> and will <u>decrease</u> by about <u>0.75</u> in the next 30 seconds.          

Step-by-step explanation:

From the question we are told we are told that  

   The  equation for the temperature of a cup of coffee place on a counter is

         H= f(t)

Here  t is the time in minutes the  coffee was put on the counter

Generally  f(t)'  is the derivative of  f(t) at it represents the change of the temperature of the cup of coffee with respect to time

 Generally for the coffee placed on the counter after a couple of minutes the temperature will decrease hence  f(t)' is  negative

Generally the unit of the temperature is in degrees Celsius while that of time is  in minutes

  So the change in temperature with time f(35)' will be in degrees Celsius/minutes (i.e  degC/min)

  From the question we are told that

        |f(35)'| =  1.5

i.e  the rate of change of temperature after 35 minutes is  1.5

and

         |f(35)| =  68

i.e the temperature of the cup of coffee after 35 minutes is  67 degC

Now after another   t=  30  seconds =  \frac{30}{60}= 0.5 \ minutes the  rate  of change of the temperature of the cup of  coffee is  

          R =  |f(35)'| *  t

=>        R = 1.5  *  0.5

=>        R = 0.75    

So

At <u>35</u> minutes after the coffee was put on the counter, its temperature is <u>68</u> and will <u>decrease</u> by about <u>0.75</u> in the next 30 seconds.  

     

5 0
3 years ago
Help asap!!!!!
svetlana [45]

Answer:

12.5

30

68.5

Step-by-step explanation:

7 0
2 years ago
Summer school issues help meeded asap
vovikov84 [41]

Answer:

2.B

Step-by-step explanation:

2.

Henry's container holds milk=200*7/8=175 ml

7 0
3 years ago
a bullet train can travel at 170 miles per hour will a graph representing distance in miles compared to time an hour show a prop
lina2011 [118]
Yes it will. For every one hour, the train travels 170 miles. That’s the rate of change/ the ratio-> 1:170
8 0
3 years ago
Read 2 more answers
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