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Hatshy [7]
3 years ago
9

Is {3,…} a defined set

Mathematics
1 answer:
jok3333 [9.3K]3 years ago
4 0

Answer:

no it's not a defined state it's undefined

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The same sentence can be spoken several different ways.<br> True or False?
Tamiku [17]
TRUE. I don't know for other languages, but in English you surely can do that.
6 0
3 years ago
Read 2 more answers
The power generated by an electrical circuit (in watts) as a function of its current x xx (in amperes) is modeled by P ( x ) = −
marysya [2.9K]

Given:

The power generated by an electrical circuit (in watts) as a function of its current x (in amperes) is modeled by

P(x)=-15x(x-8)

To find:

The current which will produce the maximum power.

Solution:

We have,

P(x)=-15x(x-8)

P(x)=-15x^2+120x

Differentiate with respect to x.

P'(x)=-15(2x)+120(1)

P'(x)=-30x+120      ...(i)

To find the extreme point equate P'(x)=0.

-30x+120=0

-30x=-120

Divide both sides by -30.

x=4

Differentiate (i) with respect to x.

P'(x)=-30(1)+(0)

P'(x)=-30 (Maximum)

It means, the given function is maximum at x=4.

Therefore, the current of 4 amperes will produce the maximum power.

7 0
4 years ago
Write each fraction as a unit fraction<br> 12/84<br> 13/143<br> 23/138
alexandr1967 [171]
A unit fraction is a fraction whose numerator is 1.

\frac{12}{84}=\frac{12 \div 12}{84 \div 12}=\frac{1}{7} \\ \\&#10;\frac{13}{143}=\frac{13 \div 13}{143 \div 13}=\frac{1}{11} \\ \\&#10;\frac{23}{138}=\frac{23 \div 23}{138 \div 23}=\frac{1}{6}
7 0
3 years ago
The reason we solve systems of equation is to find where the equation
muminat

Answer:

Yes

Step-by-step explanation:

Good luck

7 0
3 years ago
what is the value of x in the diagram below? if necessary round your answer to the nearest tenth of a until
VladimirAG [237]

Answer:

C

Step-by-step explanation:

Calculate AC using Pythagoras' identity in ΔABC

AC² = 20² - 12² = 400 - 144 = 256, hence

AC = \sqrt{256} = 16

Now find AD² from ΔACD and ΔABD

ΔACD → AD² = 16² - (20 - x)² = 256 - 400 + 40x - x²

ΔABD → AD² = 12² - x² = 144 - x²

Equate both equations for AD², hence

256 - 400 + 40x - x² = 144 - x²

-144 + 40x - x² = 144 - x² ( add x² to both sides )

- 144 + 40x = 144 ( add 144 to both sides )

40x = 288 ( divide both sides by 40 )

x = 7.2 → C



6 0
3 years ago
Read 2 more answers
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