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mamaluj [8]
2 years ago
8

2[3(42 +1)] -32? Helpppp

Mathematics
2 answers:
Lady bird [3.3K]2 years ago
6 0

Answer:

226

Step-by-step explanation:

2[ 3<u>(42 + 1)</u> ] - 32 =   2[ 3 * 43 ] - 32         {operation inside Inner parenthesis}

                           = 2 * 129 - 32          {operation inside Outer parenthesis}

                           = 258 - 32       {Multiplication}

                          = 226

Sergio039 [100]2 years ago
5 0

Answer:

226

Step-by-step explanation:

Use PEMDAS

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Answer:

The answer to your question is 37.5

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3 years ago
Differentiation <br>Find the formula to find the gradient ​
Alla [95]

Answer:

x + 4/3x^3

Step-by-step explanation:

y=1/2x^2-2/3x^-2

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6 0
2 years ago
Read 2 more answers
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
2 4/5 - 1 3/10 + 6 7/15
Tomtit [17]

Answer:7.967

Step-by-step explanation:

8 0
3 years ago
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5. Lisa sold costume jewelry at a bazaar. The
julsineya [31]

Answer:

$4

Step-by-step explanation:

2 Bracelets + 3 rings = $26

2 rings = $12

3 rings = x

To get the cost of 1 ring you divide 12 by 2 and the answer you get is 6.

The total cost of the 3 rings is $18( $6*3)

Then you subtract the cost of both 2 bracelets and 3 rings($26) from the cost of 3 rings($18). The answer is $8. ( THIS IS THE COST OF 2 BRACELETS)

<u>1 BRACELET= $4( $8/2)</u>

8 0
3 years ago
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