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2 years ago

PLEASE HELP ME! ANSWER CORRECT AND GET BRAINLIEST*! (If more than one answer)

Mathematics

1 answer:

avanturin [10]2 years ago

6 0

Answer:1. C 3. 52

Step-by-step explanation:

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Simon has a certain length of fencing to enclose a rectangular area. The function A models the rectangle's area (in square meter

ss7ja [257]

Answer:

The maximum area is 1,600 square meters

Step-by-step explanation:

<u><em>The complete question is</em></u>

What is the maximum area possible?

The given function area is modeled by A(w)=-w(w-80)

we know that

The given function is a vertical parabola open downward

The vertex is a maximum

The x-coordinate of the vertex represent the width for the maximum area

The y-coordinate of the vertex represent the maximum area

Convert the quadratic function in vertex form

$A(w)=-w(w-80)\\\\A(w)=-w^{2}+80w$

Factor -1

$A(w)=-(w^{2}-80w)$

Complete the square

$A(w)=-(w^{2}-80w+1,600)+1,600$

Rewrite as perfect squares

$A(w)=-(w-40)^{2}+1,600$ ----> function in vertex form

The vertex is the point (40,1,600)

therefore

The maximum area is 1,600 square meters

8 0

2 years ago

Read 2 more answers

In 2011, a train carried 8% more passengers than in 2010. In 2012 , it carried 8% more passengers than in 2011. Find the percent

konstantin123 [22]

Answer:

there was a 16% increase since 2010 to 2012

Step-by-step explanation:

lets say the train had 100 people on it in 2010 and in 2011 it had an 8% increase which then brings you to 8 plus 100 and you get 108.

Now in 2012 there was an increase 8%, so you will add 8 to your previous answer 108 and receive 116. So now there was 16 more passengers in 2012 than in 2010. Transfer the 16 passengers into 16% and you now have your answer.

5 0

2 years ago

An internet service provider charges $18 per month plus an initial set up fee. one customer paid a total of $81 after 2 months o

frosja888 [35]

Ok so
cost=setupfee+costused
costused=(number of months) times (cost per month)
if we represent number of months as x
we know cost per month is 18
18x is costused
and in 2 m onts, he paid 81 so
81=startup fee +18x
2 monts so x=2
81=startupfeee+36
subtract 36
45=startup fee

5 monts is x=5
45+18(5)=45+90=135

A. cost=18x+45
B. $45
C. $135

6 0

2 years ago

Suppose there are 500 units of energy available at the base of a pyramid of energy. How many units of that energy will the first

Ede4ka [16]

Answer:

With every other lever 10% of the energy with be transferred. In this case: Primary Producers (500) 1) First- level consumer. (50) 2) Second-level consumer. (5) 3) Third- level consumer. (0.5) Remember the formula is:(Primary Producer) __units X 10%= __500 units X 10%= 50

50 units of energy will be the first level consumers stored.

5 units of energy will be the second level consumers stored.

Step-by-step explanation:

3 0

2 years ago

Elsie bought a video game for $85.00. If the store charges 170% of its cost for the game, how much is the store’s profit?

MissTica

Answer: $144.50

Step-by-step explanation:

is/of = %/100

x/85 = 170/100

14,450 = 100x

divide by 100

x = $144.50

6 0

2 years ago