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Brrunno [24]
2 years ago
8

1 2 3

Mathematics
1 answer:
ioda2 years ago
4 0

Answer:

21

Step-by-step explanation:

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PLEASE HELP FOR A COOKIE
nikdorinn [45]
Create a ratio and cross multiply

20x - 75 = 14x + 63
6x = 138
x=23

hope this helps :)
6 0
3 years ago
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
3 years ago
Can someone please help me figure out this problem. just figure out what 1,2, and 3
Aleksandr-060686 [28]
1 is 39. J don’t know about 2 and 3 though:(
4 0
3 years ago
Use the virtual models to solve 5/8 x 3
HACTEHA [7]

Answer:

5/8 x 3 = 15/8. If it needs to colour up then you to colour 15 of them.

5 0
2 years ago
How do i find the volume of a cone
enyata [817]
V=PiR^2H/3

Pi = 3.14 (use pi symbol on calculator)
R is the radius if the cones bottom
H is the height of the cone
3 0
3 years ago
Read 2 more answers
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