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
iren [92.7K]
2 years ago
12

about 2/5 of Joys cottage property is covered with trees. About 21 km2 are open fields. In Km2, how much of her property is cove

red in trees
Mathematics
1 answer:
Studentka2010 [4]2 years ago
7 0

Fractions are written as the ratio of two integers. 8.4km^2 of her property are covered in trees

<h3>Ratios and proportions</h3>

Fractions are written as the ratio of two integers

Given the following parameters

total area of open field = 21km^2

If 2/5 of Joys cottage property is covered with trees, the amount covered in trees is expressed as:

Amount covered in trees = 2/5 * 21

Amount covered in trees = 42/5

Amount covered in trees  = 8.4km^2

Hence 8.4km^2 of her property are covered in trees

Learn more on ratio here: brainly.com/question/2328454

#SPJ1

You might be interested in
Why can't <img src="https://tex.z-dn.net/?f=x%5E2-5x-1" id="TexFormula1" title="x^2-5x-1" alt="x^2-5x-1" align="absmiddle" class
7nadin3 [17]

Answer:

Step-by-step explanation:

Discussion.

Not directly. But the quadratic formula can do it. But that's not your question.

the factors you get must contain the factors for 1 which are 1 and - 1

These factors must add to - 5. There's no way that will happen with 1 and - 1 and you would be creative math if you tried to say that you could make one of the factors (x -1-1-1-1-1-1). That creates a whole new question.

5 0
1 year ago
Negative twelve times a number is no more than 84
Paladinen [302]
-12 * x  \leq  84 is your equation. Hope this helped! :)
3 0
3 years ago
"write the expression in radical form and then evaluate"
Gennadij [26K]
What is the expression?

3 0
3 years ago
Explain how to find the vertex of 2x^2+12x+16
Elina [12.6K]

The vertex form:

y=a(x-h)^2+k\\\\(h,\ k)-vertex

Use (a+b)^2=a^2+2ab+b^2\qquad(*)


2x^2+12x+16=2(x^2+6x)+16=2(x^2+2(x)(3))+16\\\\=2(\underbrace{x^2+2(x)(3)+3^2}_{(*)}-3^2)+16=2((x+3)^2-9)+16\\\\=2(x+3)^2+(2)(-9)+16=2(x+3)^2-18+16\\\\=\boxed{2(x-(-3))^2-2}\to h=-3,\ k=-2

<h3>Answer: (-3, -2).</h3>

Other method:

f(x)=ax^2+bx+c\\\\vertex:(h,\ k)\\\\h=\dfrac{-b}{2a},\ k=f(h)

We have

f(x)=2x^2+12x+16\\\\a=2,\ b=12,\ c=16

Substitute:

h=\dfrac{-12}{(2)(2)}=\dfrac{-12}{4}=-3\\\\k=f(-3)=2(-3)^2+12(-3)+16=2(9)-36+16=18-36+16=-2

<h3>Answer: (-3, -2).</h3>
5 0
3 years ago
(5x-7)+(6+33)<br> solve the equation
Vinil7 [7]

Answer: 5x + 32

Step-by-step explanation:

4 0
3 years ago
Other questions:
  • What is the measure of arc EAB in circle F ?
    7·2 answers
  • Help in Tuesday aswell
    8·1 answer
  • 1/2 x blank minus 13 equals 15
    10·1 answer
  • Can y'all help meh please!
    6·2 answers
  • Write the equation of the line in slope intercept form. the coefficients in the equation are b=4, and m=-5.
    7·2 answers
  • This is my last question ​
    6·2 answers
  • -7x+6y=34 7x+4y=-24 helppp
    8·1 answer
  • Sandra bought 4 pounds of sweet potatoes for $5.36. What is the cost per pound of
    8·2 answers
  • The diameter of a circle is 10 kilometers. What is the angle measure of an arc 3​ kilometers long?
    10·1 answer
  • Solve the proportion
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!