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3 years ago

Absolute value of 47 is

Mathematics

2 answers:

kenny6666 [7]3 years ago

8 0

Answer: 47

Step-by-step explanation:

The absolute value of a positive number is the number itself.

MArishka [77]3 years ago

6 0

Answer:

47 the answer

Step-by-step explanation:

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Explain why d= a + c. in a triangle

rewona [7]

Answer:

hope the answer will helpful

5 0

3 years ago

Let c be the curve of intersection of the parabolic cylinder x2 = 2y, and the surface 3z = xy. find the exact length of c from t

Mandarinka [93]

Parameterize the intersection by setting $x(t)=t$ , so that

$x^2=2y\iff y=\dfrac{x^2}2\implies y(t)=\dfrac{t^2}2$
$3z=xy\iff z=\dfrac{xy}3\implies z(t)=\dfrac{t^3}6$

The length of the path $C$ is then given by the line integral along $C$ ,

$\displaystyle\int_C\mathrm dS$

where $\mathrm dS=\sqrt{\left(\dfrac{\mathrm dx}{\mathrm dt}\right)^2+\left(\dfrac{\mathrm dy}{\mathrm dt}\right)^2+\left(\dfrac{\mathrm dz}{\mathrm dt}\right)^2}\,\mathrm dt$ . We have

$\dfrac{\mathrm dx}{\mathrm dt}=1$
$\dfrac{\mathrm dy}{\mathrm dt}=t$
$\dfrac{\mathrm dz}{\mathrm dt}=\dfrac{t^2}2$

and so the line integral is

$\displaystyle\int_{t=0}^{t=2}\sqrt{1^2+t^2+\dfrac{t^4}4}\,\mathrm dt$

This result is fortuitous, since we can write

$1+t^2+\dfrac{t^4}4=\dfrac14(t^4+4t^2+4)=\dfrac{(t^2+2)^2}4=\left(\dfrac{t^2+2}2\right)^2$

and so the integral reduces to

$\displaystyle\int_{t=0}^{t=2}\frac{t^2+2}2\,\mathrm dt=\dfrac{10}3$

3 0

3 years ago

I don't get # 2 please help and fast

Neporo4naja [7]

I wouldn't say that. It looks to me like you've absolutely got it ... almost.

A). Your fraction is correct. But it's not in simplest form like they want it.
Reduce 18/45 to simplest form. Hint: Divide top and bottom by 9 .

B). They want the percentage that's the same as 18/45 .
Do you remember how to change a fraction to percent ?
A fraction is just a short way to say "division".
" 18/45 " means " 18 divided by 45 ".
Do the division. To change the quotient into percent, multiply it by 100 .
(Same as moving the decimal point 2 places to the right.)
Round it the nearest whole number, if it isn't already a whole number.

C). Again, your fraction is correct, but it isn't in simplest form.
Reduce 27/45 to simplest form. Hint: Divide top and bottom by 9 again.

D). Change this fraction to percent, just like you did for the female fraction.
(Do the division that the fraction says, and multiply the quotient by 100.)
(Round to the nearest whole number percent if it isn't already.)

You already did the technical stuff. I just added some mechanical things.

5 0

3 years ago

Bridget needs an actor actor is offering her services for initial $250 in addition to $40 per day actor beers offering her servi

Neporo4naja [7]

Answer:it will take 9 days for both actors to charge the same amount.

Step-by-step explanation:

Let x represent the number of days it will take the cost of hiring either actor A or actor B to be the same.

Let y represent the cost of hiring actor A for x days.

Let z represent the cost of hiring actor B for x days.

Actor A is offering her services for initial $250 in addition to $40 per day. It means that

y = 250 + 40x

Actor B is offering her services for an initial $160 in addition to $50 per day. It means that

z = 160 + 50x

To determined the number of days when both costs would be the same, we would equate equation y to equation z. It becomes

250 + 40x = 160 + 50x

50x - 40x = 250 - 160

10x = 90

x = 90/10 = 9

4 0

3 years ago

F(x) = 2 sin x- tanx is not a sinusoid.

OLga [1]

Answer:

True

Step-by-step explanation:

4 0

3 years ago

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