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3 years ago

Need help with exponential functions quick 30 points

Mathematics

1 answer:

nexus9112 [7]3 years ago

4 0

Answer:

I believe the answer is C. I hope this helps.

Step-by-step explanation:

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Here's what we know, numbers are rounded. 1.It takes 8 minutes for light to reach Earth from the sun. 2. The distance from the s

VMariaS [17]

<span>forth to the sun is 1 light-year</span>

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3 years ago

The discriminant of a quadratic equation is negative. One solution is 3+4i . What is the other solution?

Fiesta28 [93]

I believe the correct answer from the choices listed above is option B. <span>The discriminant of a quadratic equation is negative. One solution is 3+4i . The other would be 3-4i. Hope this answers the question. Have a nice day.</span>

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3 years ago

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Alla [95]

Answer:

1.5

Step-by-step explanation:

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3 years ago

Tim can mow 4 lawns in 6 hours. How many lawn(s) can he mow in 1 hour?

Art [367]

4/6 = 0,66

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Control:
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3 years ago

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if a motercycle is moving at a constant speed down the highway of 40 km/hr, how long would it the motorcycle to travel 10 km

ahrayia [7]

Answer:

15 minutes

Step-by-step explanation:

First, the motorcycle goes at a speed of 40 km/hr.

The question asks for how long it would take to travel 10 km.

Well, there are 60 minutes in an hour, since we will be translating into minutes.

Also, 10 km is 1/4 of 40 km, so it would make sense that the time length would be 1/4 of an hour as well.

1/4 of 60 minutes is 15 minutes. So it takes 15 minutes for the motorcycle to travel 10 km.

Now, if all this wordy stuff is too much to comprehend, you can also solve using proportional relationships.

$\frac{40km}{60min}=\frac{10km}{xmin}$

Now cross multiply:

$40km*xmin=10km*60min\\40x=600$

Divide both sides by 40:

$\frac{40x}{40}=\frac{600}{40}\\x=15$

Again, this shows that it wouls take 15 minutes for the motorcycle to travel 10 km.

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3 years ago