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ivanzaharov [21]
3 years ago
5

Help! Need help fro #16-#20.. it’s due tomorrow!!!

Mathematics
1 answer:
evablogger [386]3 years ago
6 0
Go to that app that u can scan the bar code for the book and then it appears the answers
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Find the area of the circle below.<br> 12 cm
QveST [7]

Answer:

About 113.1

Step-by-step explanation:

Area of a circle= πr2

Radius= 6

6x6=36

36π= About 113.1

3 0
4 years ago
Read 2 more answers
The quotient of 11 and the difference of 13 and a number
vesna_86 [32]

Answer:

( 13 - x ) / 11

~Hope this helps

7 0
4 years ago
The power generated by an electrical circuit (in watts) as a function of its current ccc (in amperes) is modeled by: P(c)=-12c^2
g100num [7]

Answer:

5 amperes will produce the maximum power of 300 watts.

Step-by-step explanation:

The general form of a quadratic function presents the function in the form

f(x)=ax^2+bx+c

The vertex of a quadratic function is the highest or lowest point, also known as the maximum or minimum of a quadratic function.

We can define the vertex by doing the following:

  • Identify a, b, and c
  • Find, the x-coordinate of the vertex, by substituting a and b into

x-coordinate =-\frac{b}{2a}

  • Find, the y-coordinate of the vertex, by evaluating

y-coordinate =f(x-coordinate )=f(-\frac{b}{2a} )

We know that the power generated by an electrical circuit is modeled by

P(c)=-12c^{2}+120c

This function is a quadratic function.

To find the current that produce the maximum power you must

  • Identify a and b

a = -12 and b = 120

  • Find, the maximum current of the vertex, by substituting a and b into

maximum-current =-\frac{b}{2a}

maximum-current =-\frac{120}{2(-12)}\\\\maximum-current = 5

  • Find, the maximum-power, by evaluating

maximum-power =P(maximum-current)=P(-\frac{b}{2a} )

P(5)=-12(5)^{2}+120(5)=300

5 amperes will produce the maximum power of 300 watts.

We can check our work with the graph of the function P(c)=-12c^{2}+120c and see that the maximum is (5, 300).

5 0
4 years ago
A physics book is 1.5 inches thick. How many books would it take to make a stack 2 yards high?
bearhunter [10]
48 books

1 yard = 36in
2 yard = 72in

72 / 1.5 = 48
4 0
3 years ago
S divided by 10 in algebraic expression
sergey [27]

Answer:

s/10

Step-by-step explanation:

"divided by 10" can be expressed as /10

s divided by 10 is basically putting s into /10 or s/10

<h3><u><em>Hope this helps!!! </em></u></h3><h3><u><em>Please mark this as brainliest!!! </em></u></h3><h3><u><em>Thank You!!! </em></u></h3><h3><u><em>:)</em></u></h3>
6 0
4 years ago
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