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11Alexandr11 [23.1K]
2 years ago
13

Guys help me plz!!! and plz do it correctly

Mathematics
1 answer:
Aleksandr-060686 [28]2 years ago
3 0
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A human head remains conscious for around 20 seconds after being decapitated. ...
gregori [183]

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omg girl have you lost your mind 0please don't do something like that it's your life make it happy you are the builder of your own life

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2 years ago
A town is planning a playground. It wants to fence in a rectangular space using an existing wall. What is the greatest area it c
777dan777 [17]

Answer:

1250 ft^{2}

Step-by-step explanation:

We are given that the playground is fenced on three sides of the playground and the four side has an existing wall.

Let the length of the rectangle be 'X' feet and width be 'Y' feet.

As the fencing is done using 100 feet of fence. We get the relation between the sides and the fence as, X + 2Y = 100.

As, X + 2Y = 100 → X = 100 - 2Y

Now, the area of the rectangle = XY = X × ( 100 - 2Y ).

i.e Area of the rectangle = -2Y^{2} +100Y.

The general form of a quadratic equation is y=ax^{2}+bx+c.

The maximum value of a quadratic equation is given by x=\frac{-b}{2a}.

Therefore, the greatest value of -2Y^{2} +100Y is at Y = \frac{-100}{2 \times -2} = \frac{-100}{-4} = 25.

Thus, Y = 25 and X = 100 - 2Y → X = 100 - 2 × 25 → X = 50.

Hence, the area of the rectangle is XY = 50 × 25 = 1250 ft^{2}.

3 0
3 years ago
Which of the equations is proportional if y is a function of X?
Taya2010 [7]

Answer:

y=4x

Step-by-step explanation:

it goes through 0,0 on my graph

6 0
2 years ago
⚠️⚠️Can someone answer both of these? PLEASE I WANNA FINISHJSKSLWLA ⚠️⚠️<br><br> Write an equation
vazorg [7]

Answer:

j + 5 = s

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Step-by-step explanation:

6 0
3 years ago
April 6,2020
Allisa [31]

Answer:

287 books

Step-by-step explanation

there was already 239 books. when the problem mentoins that Mary ADDS MORE books to the shelf, the operation is addition.

239+48=287

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