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
Morgarella [4.7K]
3 years ago
7

Estimate the area of Alberta in square miles. Show your reasoning

Mathematics
1 answer:
ella [17]3 years ago
5 0

Answer:  About 278,250\ mi^2

Step-by-step explanation:

The missing figure is attached.

Notice in the first picture that Alberta has a complex shape.

You can calculate the area of a complex shape by decomposing it into polygons whose areas can be calculated easily.

Observe the second picture. Notice that it can be descompose into two polygons: A trapezoid and a rectangle.

The area of the trapezoid  can be calcualted with the formula:

A_t=\frac{h}{2}(B+b)

Where "h" is the height, "B" is the long base and "b" is short base.

And the area of the rectangle can be found with the formula:

 A_r=lw

Wkere "l" is the lenght and "w" is the width.

Then, the apprximate area of Alberta is:

A=\frac{h}{2}(B+b)+lw

Substituting vallues, you get:

A=(\frac{(410\ mi-180\ mi)}{2})(760\ mi+470\ mi)+(180\ mi)(760\ im)\\\\A=141,450\ mi^2+136,800\ mi^2\\\\A=278,250\ mi^2

Therefore, the area of of Alberta is about 278,250\ mi^2.

You might be interested in
What is the range of f(x)=(3/4)^x - 4 a.{y|y > -4} b.{y|y>3/4} c.{y|y<- 4} d.{y|y/4}
Vanyuwa [196]
3/4 *x-4
3/4 x 3/4 x 3/4 x 3/4
3 13/81

8 0
3 years ago
20 pts<br> Could someone help me with this expression?<br> Simplify: 3 (2+a)
Arte-miy333 [17]

Answer:

5a

Step-by-step explanation:

u add the 3 plus 2 then add the a

6 0
3 years ago
Help help help help please please
Zolol [24]

Answer:

house keeping

Step-by-step explanation:

3 0
2 years ago
Estimate 195 divided by 4. Tell which method is used.
ki77a [65]
195 ÷ 4 = 48.75
Is this what you wanted?
4 0
3 years ago
Read 2 more answers
solve this using pythagorean theorem please and give me the right answer and i will give YOU brainliest and a like in return.
Dima020 [189]

Answer:

6.8 miles

Step-by-step explanation:

a^2+b^2=c^2

4 0
1 year ago
Other questions:
  • Explain how integers and all whole numbers are rational numbers
    15·1 answer
  • Number 9 and 10. Say which one you r doing plzzz
    11·1 answer
  • The picture shows the number of colored shirts sold this week at Joan’s Clothing Shop. Joan assumes this trend will continue. Sh
    5·2 answers
  • Solve for y.<br> - 3y + 2 = -10y + 30<br> Simplify your answer as much as possible.
    11·1 answer
  • Which of the following is not a geometric sequence?
    9·2 answers
  • I need help on #59, #60
    8·2 answers
  • What's y-3x+10 in standard form
    15·2 answers
  • Graph y=-x+4 and -4x+2y=2
    9·1 answer
  • Suppose an employee made $50,000 in 2015 and received a 2% raise at the end of the year. What will he or she make in 2016?
    7·2 answers
  • Please help ASAP! 20 points!!
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!