1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
scZoUnD [109]
3 years ago
7

Quadratics Question

Mathematics
1 answer:
Scrat [10]3 years ago
7 0

P = 2(l+w)

200 = 2(l+w)

divide by 2 on each side

100 = l+w

let the length = x

100 = x+w

solve for w but subtracting x from each side

100 -x = w


A= l*w

we know l =x

substitute for w  because we found w above 100 -x = w

A =  x * (100-x)

distribute

A = 100x - x^2


10.  if A = 2400

2400 = 100x-x^2

subtract 100x from each side

2400 -100x = 100x-x^2 -100x

2400 -100x = -x^2

add x^2 to each side

2400-100x^2 + x^2 = -x^2 + x^2

x^2 -100x+2400 =0

factor

(x-60) (x-40) = 0

using the zero product property

x-60 = 0    x-40 = 0

x=60    x=40


If x=60  then 100 -x = w  100-60 = w  w=40

If x=40 then 100 -x = w  100-40 = w  w=60


The dimensions are 60m by 40 m



You might be interested in
You can draw a quadrilateral with two sets of parallel lines and no right angles?
bonufazy [111]
Yes you can. The quadrilateral that you would get is called parallelogram. It has 2 paris of parallel lines. and 2 pairs of equal angles. one pair is angles that are less than 90 degrees and other one is where 2 angles are greater than 90 degrees each. Therefore there isnt any right angle there and you got yourself quadrilateral. of these 2 parallel lines are of equal lenght than you get something called rhombus.
8 0
3 years ago
Paola is selling bags of homemade caramel corn for a club fundraiser. The amount she makes depends on the number of bags sold. B
BlackZzzverrR [31]

Answer:

She realised $12 from selling 8 bags of caramel corn

Step-by-step explanation:

Given

(8, 12)

Required

Determine what it means based on the available information

A function is always written as (x,y)

Where x is dependent on y

By comparison,

x = bags of caramel corn = 8

y = amount realised = 12

Assuming the currency is in dollars

Conclusively,

She realised $12 from selling 8 bags of caramel corn.

5 0
3 years ago
PLEASE ANSWER ASAP!!!! ILL MAKE YOU BRAINIEST!!!<br><br> What is the length of XY?
JulijaS [17]
Not sure, but i think it's 4
6 0
3 years ago
Read 2 more answers
James is considering buying a home priced at $104,000. If the current market
KatRina [158]
$106,000

In a buyers market, people that are buying a house can get it for a good price.
In a sellers market the person selling their house can make more.
8 0
2 years ago
What's the best prouduct of these fractions 4/7×8/9×14/15​
sladkih [1.3K]

━━━━━━━☆☆━━━━━━━

▹ Answer

<em>448/945</em>

<em />

▹ Step-by-Step Explanation

\frac{4}{7} * \frac{8}{9} \\\\= \frac{32}{63} \\\\\\\frac{32}{63} * \frac{14}{15\\} \\\\= \frac{448}{945}

Hope this helps!

- CloutAnswers ❁

Brainliest is greatly appreciated!

━━━━━━━☆☆━━━━━━━

6 0
2 years ago
Read 2 more answers
Other questions:
  • Simplify 7 log3 k + 6 log3 m − 9 log3 n
    14·1 answer
  • Write an absolute value for all real numbers at least 3 units from -2
    6·1 answer
  • Which of the following is the equation of a line parallel to the line y = 3x + 2,
    12·1 answer
  • Suppose a 95% confidence interval for μ turns out to be (1,000, 2,100). To make more useful inferences from the data, it is desi
    9·1 answer
  • I attached a photo for this question
    12·1 answer
  • What are the least common multiples of 7 and 11
    12·1 answer
  • Which mixture can be separated based on the density of the component
    15·2 answers
  • After a birthday only 1/4 cake ramains what fraction is equivalent 1/4
    13·1 answer
  • Plz answer will give brainliest if correct
    6·1 answer
  • Hurry please!!!!!
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!