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ioda
3 years ago
11

Today, Sean left home at 8 a.m, drove to work, and worked from 9 a.m.5 p.mOn the drive back home, Sean got stuck in slow-moving

traffic for 2 hours, then stopped to have dinner, and finally got home at 9:30 p.m.
The graph below shows Sean's distance, d, from his home (in kilometers) as a function of the time, t (in hours).
Complete the sentences below based on the graph of the function.

Mathematics
1 answer:
kipiarov [429]3 years ago
8 0

Answer:

-20

-20

-10

Step-by-step explanation:

The graph shows that going from home to work was 20km according to the prompt and it took an hour. The two hours he was stuck in traffic was from 5-7pm and he was moving at 10km an hour again, from the graph. (I'm sorry if this isnt the best explanation, I'm better at getting an answer than explaining it).

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FrozenT [24]
The linear model of this case takes the form:

y = a(x-b) + k

<span>The cost of having a package delivered has a base fee of $9.70
this is "k" >>>>>  k=9.7 (fixed amount of fee)

THEN

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<span>Every pound over 5 lbs cost an additional $0.46 per pound

that means: 0.46(x-5)
in other words, if the package weighs foe example 9 pounds, then 9-5=4, it will cost 0.46*4 for these 4 extra pounds

Finally we have the linear form of this: C = 0.46 (W - 5) + 9.7
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3 0
3 years ago
A baby bird jumps from a tree branch and flutters to the ground. The function "f" models the bird's height (in meters) above the
AURORKA [14]

The answer to this question will depend on the function f itself. Basically you will find the height in meters above the ground of the bird when it jumped when the time t=0s. This is substsitute every t in the function for a value of zero and that way you will get the bird's height at the time it jumped. If you were given a graph for this function, you can find the y-intercept of the graph and that will be the answer as well. The question could be written like this:

A baby bird jumps from a tree branch and flutters to the ground. The function "f(t)-4.9t^{2}+25" models the bird's height (in meters) above the ground as a function of time (in seconds) after jumping. What is bird's height above the ground when it jumped.

Answer:

25m

Step-by-step explanation:

Once your function is given, you can substitute t=0 since 0s is the time measured at the moment the bird jumped. So our function will be:

f(0)=-4.9(0)^2+25

f(0)=25m

So the height of the bird above the ground when it jumped is 25m in this particular function.

8 0
3 years ago
A car is traveling at 65 miles per hour how many miles does the car travel in 1.5 hours
uysha [10]

Answer:

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8 0
4 years ago
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20 as a percentage of 50
Y_Kistochka [10]
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4 years ago
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(08.01 MC)Below are the data collected from two random samples of 500 American adults on the number of hours they spend doing le
Mazyrski [523]

Answer:

Dan is correct

Step-by-step explanation:

From the question, we have:

Hours:1\ 2\ 3\ 4\ 5

Required

The average

The average hour is calculated using:

\bar x = \frac{\sum x}{n}

So, we have:

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<em>Dan calculated the mean as 3; while Bret calculated the mean as 4.</em>

<em>Hence, we can conclude that Dan s correct</em>

4 0
3 years ago
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