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3 years ago

13

Please help a poor child... :’)

1 answer:

ololo11 [35]3 years ago

4 0

S = 12a
s represent number of student
a represent number of adult

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What is the length of BC

AleksandrR [38]

Where the question ??

7 0

3 years ago

assume x and y are both differentiable functions of t. find dx/dt given x=-1 and dy/dt=8 for the relation: 4x^2+3y^3=28

melomori [17]

Given:

x and y are both differentiable functions of t.

$4x^2+3y^3=28$

$x=-1\text{ and }\dfrac{dy}{dt}=8$

To find:

The value of $\dfrac{dx}{dt}$ .

Solution:

We have,

$4x^2+3y^3=28$ ...(i)

At x=-1,

$4(-1)^2+3y^3=28$

$4+3y^3=28$

$3y^3=28-4$

$3y^3=24$

Divide both sides by 3.

$y^3=8$

Taking cube root on both sides.

$y=2$

So, y=2 at x=-1.

Differentiate (i) with respect to t.

$4(2x\dfrac{dx}{dt})+3(3y^2\dfrac{dy}{dt})=0$

Putting x=-1, y=2 and $\dfrac{dy}{dt}=8$ , we get

$4(2(-1)\dfrac{dx}{dt})+3(3(2)^28)=0$

$-8\dfrac{dx}{dt}+9(4)(8)=0$

$-8(\dfrac{dx}{dt}-9(4))=0$

Divide both sides by -8.

$\dfrac{dx}{dt}-36=0$

$\dfrac{dx}{dt}=36$

Therefore, the value of $4x^2+3y^3=28$ is 36.

6 0

3 years ago

1 + 2b – 13 = 12 – 4b – 2b for b

Marysya12 [62]

The answer is b=3 for your problem

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3 years ago

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9.5000032 is one such number

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Given a right triangle whose are is 12 cm2. The height of the hypotenuse is 1.2 cm. What is the length of the hypotenuse?

Alina [70]

Answer:

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Step-by-step explanation:

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3 years ago