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3 years ago

Graph the inequality in the coordinate plane negative 3x + 2y

Mathematics

1 answer:

Aloiza [94]3 years ago

8 0

Answer:

3x+2y

Step-by-step explanation:

you would count 3 to the right on the flat line, and on the line that goes straight up and down, you would count 2 going up and you would plant a dot where they meet on the graph

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A circular plate has a diameter of 16 inches. What is the area

krek1111 [17]

<em>Answer:</em>

<h3>The answer is 201 in²</h3>

<em>Explanation:</em>

Use the formula <u>Area = pi * r²</u>

<em>(Radius is half the diameter.)</em>

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3 years ago

Use chain rule to find dw/dt w=ln(x^2 + y^2 + z^2)^(1/2) , x=sint, y=cost, z=tant

son4ous [18]

The chain rule states that

$\dfrac{\mathrm dw}{\mathrm dt}=\dfrac{\partial w}{\partial x}\dfrac{\mathrm dx}{\mathrm dt}+\dfrac{\partial w}{\partial y}\dfrac{\mathrm dy}{\mathrm dt}+\dfrac{\partial w}{\partial z}\dfrac{\mathrm dz}{\mathrm dt}$

Since $\ln(x^2+y^2+z^2)^{1/2}=\dfrac12\ln(x^2+y^2+z^2)$ , you have

$\dfrac{\partial w}{\partial x}=\dfrac x{x^2+y^2+z^2}$
$\dfrac{\partial w}{\partial x}=\dfrac y{x^2+y^2+z^2}$
$\dfrac{\partial w}{\partial z}=\dfrac z{x^2+y^2+z^2}$

and

$\dfrac{\mathrm dx}{\mathrm dt}=\cos t$
$\dfrac{\mathrm dy}{\mathrm dt}=-\sin t$
$\dfrac{\mathrm dz}{\mathrm dt}=\sec^2t$

Also, since $x^2+y^2+z^2=\sin^2t+\cos^2t+\tan^2t=1+\tan^2t=\sec^2t$ , the derivative is

$\dfrac{\mathrm dw}{\mathrm dt}=\dfrac{\sin t\cos t}{\sec^2t}-\dfrac{\sin t\cos t}{\sec^2t}+\dfrac{\tan t\sec^2t}{\sec^2t}$
$\dfrac{\mathrm dw}{\mathrm dt}=\tan t$

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3 years ago

Bombarding plutonium-239 with an alpha particle creates an isotope of curium. balance the equation. 239 94 pu 4 2 he → a b cm c

qwelly [4]

Since mass is neither created nor destroyed, the missing items are;

a = 242
b = 96
c = 1
d = 0

<h3>What is nuclear reaction?</h3>

The term nuclear reaction has to do with the transformation of one nucleus to another. On this case, we are going to transform P u to c m.

Since mass is neither created nor destroyed, the missing items are;

a = 242
b = 96
c = 1
d = 0

Learn more about nuclear reaction: brainly.com/question/25455333?

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2 years ago

The mean gpr averages of a random sample of 36 college seniors is calculated to be 2.6. the population standard deviation is 0.3

Alika [10]

A is the correct answer

8 0

3 years ago

In the theory of learning, the rate at which a subject is memorized is assumed to be proportional to the amount that is left to

babymother [125]

Answer:

dA/dt = k1(M-A) - k2(A)

Step-by-step explanation:

If M denote the total amount of the subject and A is the amount memorized, the amount that is left to be memorized is (M-A)

Then, we can write the sentence "the rate at which a subject is memorized is assumed to be proportional to the amount that is left to be memorized" as:

Rate Memorized = k1(M-A)

Where k1 is the constant of proportionality for the rate at which material is memorized.

At the same way, we can write the sentence: "the rate at which material is forgotten is proportional to the amount memorized" as:

Rate forgotten = k2(A)

Where k2 is the constant of proportionality for the rate at which material is forgotten.

Finally, the differential equation for the amount A(t) is equal to:

dA/dt = Rate Memorized - Rate Forgotten

dA/dt = k1(M-A) - k2(A)

7 0

3 years ago

Graph the inequality in the coordinate plane negative 3x + 2y​

Graph the inequality in the coordinate plane negative 3x + 2y