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Eduardwww [97]
3 years ago
10

Joe drove 80 kilometers per hour for 4 hours. How far did he go?

Mathematics
2 answers:
Maurinko [17]3 years ago
7 0

Step-by-step explanation:

velocity = distance/time taken

distance=velocity ×time taken

distance=80×4

distance=320kilometers

vichka [17]3 years ago
6 0
He went 320kilometers
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coldgirl [10]
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2 years ago
Use the Intermediate Value Theorem to show that there is a root of the given equation in the specified interval.
Olin [163]

Answer:

The correct option is  d

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f(2) =  11

The correct option is d

The correct option is  c

the correct option is  b

Step-by-step explanation:

The given equation is

     f(x) =  x^4 + x -7 =0

The give interval  is (1,2)

 

   Now differentiating the equation

        f'(x) =  4x^3 +7 > 0

Therefore the equation is  positive  at the given interval

       Now at x= 1

  f(1) =  (1)^4 + 1 -7 =-5

       Now at x= 2

  f(2) =  (2)^4 + 2 -7 =11

Now at  the interval (1,2)

      f(1) < 0 < f(2)

i.e

      -5 < 0 < 11

this tell us that there is a value z within 1,2 and

   f(z) =  0

Which implies that there is a root within (1,2) according to the intermediate value theorem

     

5 0
2 years ago
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dangina [55]
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the numbers should be

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or

9.15E18

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7 0
1 year ago
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Step-by-step explanation:

8 0
3 years ago
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