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1 year ago

In a classroom, 4/6of the students are wearing

Mathematics

1 answer:

Airida [17]1 year ago

6 0

The answer is
4/6-3/6=1/6

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What is the area of this figure?

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2 years ago

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Multiply. ·−4/8*5*1/7

marysya [2.9K]

20/56 or.. 5/14........

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3 years ago

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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!

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2 years ago

Short answer question :)

alisha [4.7K]

No because the lines are not connecting. The definition of a function is a relationship involving one or more variables. This can't be a function because their is only one variable.

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2 years ago

To solve the system of equations below.Jose isolated the variable y in the first equation and then substituted it into the secon

kobusy [5.1K]

The first step of solving this is to isolate the variable y in the first equation.

3x - y = -2 Subtract -3x from both sides
- y = - 3x - 2 Divide both sides by -1
y = 3x + 2

Now, substitute that y value into the second equation.

2x^{2} - y = 10 Substitute
<span>2x^{2} - (3x + 2) = 10 Multiply all of the numbers in the parentheses by -1
2x^{2} - 3x - 2 = 10
</span>
<span>So the correct answer choice is D) 2x^{2} -3x - 2 = 10.</span>

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2 years ago

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