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Sever21 [200]
2 years ago
11

2)

Mathematics
2 answers:
Flauer [41]2 years ago
8 0

Answer:

luke spent 200 minutes napping.

Step-by-step explanation:

the total time span spent by him in the above four activities rounded to nearest 10 :-

=》70 + 60 + 130 + 40

=》300 minutes,

and car trip was of 500 minutes, so total time spent by him sleeping is :-

=》500 - 300

=》200 minutes

tatiyna2 years ago
4 0

Answer:

B.) About 200 minutes napping

Step-by-step explanation:

74+56+128+38=296

500-296=204

204 is about 200

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Answer:

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Step-by-step explanation:

1m = 100cm

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Someone help me with this. I forgot my notes in class
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Answer:

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Lets check with every option

(a) [-4,-3]

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f(-3) = (-3)^4 + 3(-3)^3 - 2(-3)^2 - 6(-3) - 1= -1

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(b) [-3,-2]

We plug in -3  for x  and -2 for x

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(c) [-2,-1]

We plug in -2  for x  and -1 for x

f(-2) = (-2)^4 + 3(-2)^3 - 2(-2)^2 - 6(-2) - 1= -5

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f(-2) is negative and f(-1) is positive. there is some value at x=c on the interval [-2,-1] where f(c)=0. so there exists atleast one zero on this interval.

(d) [-1,0]

We plug in -1  for x  and 0 for x

f(-1) = (-1)^4 + 3(-1)^3 - 2(-1)^2 - 6(-1) - 1= 1

f(0) = (0)^4 + 3(0)^3 - 2(0)^2 - 6(0) - 1= -1

f(-1) is positive and f(0) is negative. there is some value at x=c on the interval [-1,0] where f(c)=0. so there exists atleast one zero on this interval.

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f(0) = (0)^4 + 3(0)^3 - 2(0)^2 - 6(0) - 1= -1

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