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3 years ago

If K(x) = |x-3| + x, find k(4)

Mathematics

1 answer:

swat323 years ago

7 0

Answer:

Step-by-step explanation:

First do substitution,

Which means |(4)-3|+4

Therefore 1+4=5

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Which of these is an example of continuous random variable?

Nana76 [90]

Answer:

B. weight of a bag of apples

Step-by-step explanation:

A continuous random variable is a variable that is measured not counted. It can be any number between integers in decimal form.

So from the options given above, only the weight of bag of apples is a continuous variable as it will be measured.

While the others cannot be expressed in the form of decimals.

So the correct answer is:

B. weight of a bag of apples ..

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3 years ago

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sladkih [1.3K]

There would be four sides, three around and the bottom base <span />

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3 years ago

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Which of the following relations is a function?

Agata [3.3K]

Answer:

Step-by-step explanation:

Because in D, there no x-value that are repeating in the list.

For example A, the value 8 and -8 are being repeated twice, which makes this relation not a fuction.

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3 years ago

∫c<br> x sin y ds, C is the line segment from (0, 1) to (3, 5)

Mnenie [13.5K]

Parameterize the line segment $C$ by

$\mathbf r(t)=\langle x(t),y(t)\rangle=(1-t)\langle0,1\rangle+t\langle3,5\rangle=\langle3t,1+4t\rangle$

where $t\in[0,1]$ . Then

$\mathrm ds=\|\mathbf r'(t)\|\,\mathrm dt$
$\mathrm ds=\|\langle3,4\rangle\|\,\mathrm dt$
$\mathrm ds=5\,\mathrm dt$

So the integral is

$\displaystyle\int_Cx\sin y\,\mathrm ds=5\int_0^1x(t)\sin y(t)\,\mathrm dt$
$=\displaystyle5\int_0^13t\sin(1+4t)\,\mathrm dt$
$=\dfrac{15}{16}(\sin5-\sin-4\cos5)\approx-2.7516$

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3 years ago

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Hoochie [10]

Answer:

Step-by-step explanation:

20^2 + 15^ = c^2

400 + 225 = c^2

625 = c^2

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2 years ago

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