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natta225 [31]
3 years ago
10

The relationship between time and distance remaining on a 3 mile walk for someone walking at a rate of 2miles per hour

Mathematics
1 answer:
Maksim231197 [3]3 years ago
6 0

Answer:

Remaining\ distance=3-2t\ \ \ \ \ \ \ \ \ (where\ t\ is\ time)

Step-by-step explanation:

Total\ distance=3\ mile\\\\speed=2\ miles/hour\\\\Time=t\\\\In\ t\ hours\ distance\ covered=velocity\times time=2\times t=2t\\\\Remaining\ distance=total\ distance-distance\ covered\\\\Remaining\ distance=3-2t

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Find f(7). f(x)=x^2+9<br><br> Find b(-2)-a(12). a(x)=13x-2;b(x)=8x-14
baherus [9]

Answer:

f(7)=58

b(-2)-a(12)=-188

Step-by-step explanation:

f(7)=(7)^2+9

49+9

f(7)= 58

b(-2)-a(12)=8(-2)-14-13(12)-2

-16-14-156-2

=-188

4 0
3 years ago
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What is its height?
Vlada [557]

Answer:

b im pretty sure

Step-by-step explanation:

6 0
3 years ago
How do you do these 2 questions?
zavuch27 [327]

Answer:

0 ≤ an ≤ bn

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The series ∑₁°° an converges by comparison to ∑₁°° bn.

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The series ∑₁°° bn diverges

The comparison test is inconclusive for our choice of bn.

Step-by-step explanation:

an = 1 / (n² + n + 3) and bn = 1 / n²

The numerators are the same, and the denominator of an is greater than the denominator of bn.  So 0 ≤ an ≤ bn.

bn is a p series with p > 1, so it converges.

Since the larger function converges, the smaller function also converges.

an = (3n − 1) / (6n² + 2n + 1) and bn = 1 / (2n)

If we rewrite bn as bn = (3n − 1) / (6n² − 2n), we can tell that when the numerators are equal, the denominator of an is greater than the denominator of bn.  So 0 ≤ an ≤ bn.

bn is a p series with p = 1, so it diverges.

The larger function diverges.  We cannot conclude whether the smaller function converges or diverges.

5 0
3 years ago
Machine A produces 500 items per hour. Machine B produces 400 items per hour. Working together, the two machines produce 2250 it
FinnZ [79.3K]
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3 0
3 years ago
If SS= 162 from a sample of 15 data, find s^2
Genrish500 [490]

Answer:

11.57

Step-by-step explanation:

We have a simple formula to solve this:

s^2=\frac{SS}{n-1}

where

SS is sum of squares

s^2 is the variance, and

n is the number of data points

We are given all the info to find out s^2. Hence,

s^2=\frac{SS}{n-1}\\s^2=\frac{162}{15-1}\\s^2=\frac{162}{14}=11.57

8 0
3 years ago
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