All categories

3 years ago

PLEASE HELP!!! Pr-Cal Question 20 points

Mathematics

2 answers:

Brilliant_brown [7]3 years ago

7 0

Answer:

3600

Step-by-step explanation:

perimeter is 120ft

Goal is to get the largest area.

so you can start with a list of possible solutions:

1*119 = 119ft

2*118 = 236ft

60*60 =3600ft

61*59 = 3599ft

Irina18 [472]3 years ago

4 0

Answer: it is well known that the largest area would be a circle with circumference 120 ft, and it is well known that a square 30ft on a side gives the most area of all retangles with perimeter 120 ft, but we are to prove it. The equation is area = side × (60 - side).

Step-by-step explanation:

Let s be one side of the rectangle, and 60-s be the other side. Maximize the area, which is

a(s) = s×(60-s) = -s^2 + 60s

This quadratic equation reaches a maximum when da(s)/ds = 60 - 2s = 0.

2s = 60, s = 30.

You might be interested in

In two or more complete sentences, describe the steps necessary in completing the following sum. In your final answer, include t

tiny-mole [99]

Answer:

First, you would need to find a common denominator for the two, in this case it would be 6 which would make the equation 3/6 + 4/6=7/6. Then in order to make the answer a mixed number you would need to divide the numerator into the demonanator, write down the whole number answer (6 will go into 7 ONE time) then write down the "leftovers". The final answer would be 1 1/6

(i hope this helps! im not the best at explaining)

6 0

4 years ago

Can I someone help me answer this?

ikadub [295]

The dependent is the childrens hospital

7 0

3 years ago

What are the zeros of the function below?

Ivan

When you want to find zeros of rational expression you need to find at which points numerator is equal to zero. In this case, we have the product of three expressions.
$x(x-1)(x+11)=0$
A product is equal to zero whenever one of the factors is equal to zero.
That means that zeros of our functions are:
1) $x=0$
2) $x-1=0$
$x=1$
3) $x+11=0$
$x=-11$
The final answer is a. Function has zeros at (0, 1, -11).

3 0

3 years ago

PLEASE HELP ME!!!! WILL MARK BRAINLIEST

FromTheMoon [43]

Answer:

Step-by-step explanation:

Pythagoras's theorem dictates that a squared + b squared = c squared when talking about sides on right angled triangles with a and b being flat sides and c being the hypotenuse which gives us the forumula below

3 squared + 4 squared = 25 route 25 = 5

8 0

3 years ago

Read 2 more answers

Evaluate 2x + 1 when x = 7.

Tatiana [17]

Answer:

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers