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2 years ago

14

The equation P=4s represents the perimeter P of a square with side length s. What is the perimeter of a square with a side lengt

h of 5ft ?
The perimeter is.

1 answer:

PilotLPTM [1.2K]2 years ago

6 0

Answer:

20 feet

Step-by-step explanation:

s= side

P= 4s

I our case, s is 4, so 4*5 is 20.

Hence,

P=20

Hope this helps!

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(5x-7)+(6+33)<br> solve the equation

Vinil7 [7]

Answer: 5x + 32

Step-by-step explanation:

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3 years ago

The power generated by an electrical circuit (in watts) as a function of its current c (in amperes) is modeled by: P(c)= -12c^2

sveta [45]

Answer:

5 amperes will produce the maximum power

Step-by-step explanation:

The power generated by an electrical circuit (in watts) as a function of its current c (in amperes) is modeled by: P(c)= -12c^2 + 120c.

To find out the maximum power we need to find the vertex

formula to find x -coordinate of vertex is $\frac{-b}{2a}$

P(c)= -12c^2 + 120c is given in the form of y=ax^2+bx+c

a= -12, b = 120

$c=\frac{-b}{2a}=\frac{-120}{2(-12)}=5$

c= 5 amperes will produce the maximum power

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2 years ago

Read 2 more answers

The sum of two integers is 61 and their difference is 1. Find the integers.

musickatia [10]

We can find this integer using a system of equations. The first thing we look at is the first sentence.

Let's call X The first integer,

Let's call Y the second integer.

So, X+Y=61 and X-Y= 1

Using Substituion on the second equation, we get

X=Y+1

(Now we plug in Y+1 into the second equation for X)

So,

(Y+1)+Y=61

2Y=60

Y=30

So, one of the integers is 30.

Now to find the second, we go back to

X=Y+1

X=30+1

X=31.

So, the integers are 31 and 30.

Hope this helps!

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3 years ago

A car on a racetrack drove 98 miles in 60 minutes. How far did it drive in 12 minutes? Round the the nearest tenth when necessar

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Answer:

19.6 miles in 12 minutes.

Step-by-step explanation:

first take 60, then divide it by 12.

60÷12=5

then take 98 and divide that by 5

98÷5=19.6

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3 years ago

CALCULATE THE TOTAL SURFACE AREA OF A CONE OF RADIUS 21CM AND HEIGHT 10CM

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Answer:

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Step-by-step explanation:

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