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3 years ago

Destiny gives her bean plant 2/3 cup water every day. how much water does destiny give her bean plant in 8 days?

Mathematics

1 answer:

Travka [436]3 years ago

8 0

2/3 times 8 = 16/3 =5 1/3 cups of water.

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Two airplanes are flying in the air at the same height. Airplane A is flying east at 300mi/h and airplane B is flying north at 2

Ipatiy [6.2K]

Answer:

$\frac{dAB}{dt}=340 mil/h$

Step-by-step explanation:

The change of distance over time of the plain A is 300 mi/hour and 200 mi/hour for plane B. O is the point of the airport.

So, the distance from A to O AO = 90 miles and BO = 120 miles.

Now, we have a right triangle here. We can use the Pythagorean theorem, so the distance between the planes will be:

$AB^{2} =AO^{2}+BO^{2}$ (1)

$AB =\sqrt{AO^{2}+BO^{2}}=$

$AB =\sqrt{90^{2}+120^{2}}=150 miles$

If we take the derivative of the equation (1) we could find the change of the distance between planes.

$2AB\frac{dAB}{dt}=2AO\frac{dAO}{dt}+2BO\frac{dBO}{dt}$

$2*150\frac{dAB}{dt}=2*90*300+2*120*200=102000 mil/h$

$\frac{dAB}{dt}=\frac{102000}{150*2}$

Finally,

$\frac{dAB}{dt}=340 mil/h$

I hope it helps you!

6 0

2 years ago

What is a equivalent expression for 3y+y+4+y

kherson [118]

an equivalent expression is 5y+4

there is 3y which is y+y+y

so you have y+y+y+y+4+y

there are 5 y so it is 5y

then you have +4

5y+4

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2 years ago

Y=e^x how do I solve this

kolezko [41]

If you're trying to solve for x, keep in mind the ln (natural log) of e is 1. So take the natural log of both sides, which will give you ln Y = ln e^x. The ln and e essentially cancel out, so you're left with x = ln Y.

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3 years ago

In June, a runner ran a mile in 7:45. In September, the runner ran a mile in 5:51.

mario62 [17]

The percentage of Change in time is an decrease

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2 years ago

Some one help on this

Snowcat [4.5K]

Answer:

Step-by-step explanation:

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2 years ago

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