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suter [353]
2 years ago
11

Kevin finished a race in 25.7 minutes juile finished the race 7 1/10 sooner than kevin finished it how many minutes did it take

juile to finish
Mathematics
1 answer:
Papessa [141]2 years ago
5 0

Answer:

18.6 minutes

Step-by-step explanation:

subtract. im sorry if this is not right. im not smart

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he needs 6 roses and 9 pink daises

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. Five plus a number divided by 2 is 9.
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Using a calculator, if you typed in 9 divided by 2, you'd get 4.5. You could also express 9/2 as a mixed fraction: 4 1/2.

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Cody was 165cm, {cm}165cm tall on the first day of school this year, which was 10% taller than he was on the first day of school
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Determine which equation is belongs to the graph of the limacon curve below.
JulsSmile [24]

Answer: Option C.

Step-by-step explanation:

We have functions of r(θ)

In our graph, we can see that the minimum value of r is when θ = 0°, and the maximum value is when θ = 180°.

We also know that the graph is in the square (-5, 5)x(-5, 5) and you can see that the maximum radius is almost less than 5.

Then let's analyze the options:

A) r = 3 - 2*cos(θ)

the maximum is at the right angle, but the maximum is:

r = 3 -2*(-1) = 5, so this maximum value is bigger than the one in the graph.

B) r = 3 - sin(θ)

For the sin functions, the maximum and minimum do not correspond with the values i write earlier, so we can discard this option.

C) r = 3 - cos(θ)

The maximum is: r = 3 - (-1) = 4, so this may be the correct answer.

the minimum is r = 3 - 1 = 2,

this is a possible equation for our circle.

D) r = 2 - 2*cos(θ)

Here, when θ = 0, we have: r = 2 - 2*1 = 0, but in the graph we can see that the radius is not 0 when θ = 0, so we can discard this option.

So the only option that makes sense is option C.

8 0
3 years ago
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