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
tia_tia [17]
3 years ago
14

As students move to thinking about formulas it supports their conceptual knowledge of how the perimeter of rectangles can be put

into general form. What formula below displays a common student error for finding the perimeter?
A) P = l + w + l + w
B) P = l + w
C) P = 2l + 2w
D) P = 2(l + w)
Mathematics
1 answer:
kolezko [41]3 years ago
7 0

Answer:

B. P=l+w

Step-by-step explanation:

Let l represent length of rectangle and w represent width of rectangle.

We have been given four formulas for the perimeter of rectangle. We are asked to choose the formula that displays a common student error for finding the perimeter.

We know that perimeter of a polygon is sum of all sides of the polygon. We also know that rectangle is polygon having two sets of equal sides.

The perimeter, P, of rectangle will be sum of its all sides that is:

P=l+w+l+w

Combine like terms:

P=2l+2w

Factor out 2:

P=2(l+w)

Upon looking at our given choices, we can see that formula represented by option B displays a common student error for finding the perimeter.

You might be interested in
Which of the following systems of equations is an example of one where substitution is the best method?
blondinia [14]

Answer:

The answer is option D.

I hope this helps.

3 0
3 years ago
Read 2 more answers
Clara found the product of 3 – 6y2 and y2 + 2. Her work is shown below.
Kisachek [45]

Answer: No the students work is not correct. Because you are using distribution. Which means that 3 has to multiply the y2 and 2 not just the y2! And after you distribute it you need to simplify!

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
Which graph represents a function with an initial value of One-half?
sweet [91]

Answer:

The answer is B

Step-by-step explanation:

I went on socratic and found the answer

7 0
3 years ago
A pool in the shape of s rectangle has a perimeter 80 feet. The pool is 8 feet less wide than it is long
kykrilka [37]
So, 80 - 8. equals 72 / 2  = 36... then add 36 + 8 to one and you have 44...
44 for length and 36 for width 
3 0
3 years ago
Read 2 more answers
Quadrilateral ABCD is a parallelogram with diagonals that intersect at point E. If AD=4w-5 DE=4 BE=x/2 BC=7w-17 solve for w.
Alex777 [14]

Answer:

B. w = 4

Step-by-step explanation:

As we know, in a parallelogram length of opposite sides are equal.

so, AD = BC

⇒ 4w - 5 = 7w - 17

⇒ 12 = 3w

⇒ w = 4

8 0
3 years ago
Other questions:
  • A. what is the height of the diving board
    13·1 answer
  • Any help please? I need help :)
    10·1 answer
  • Find the equation of the line passing through the oints (-2, 1) and (6, 5).
    6·2 answers
  • The president of Doerman Distributors, Inc., believes that 30% of the firm's orders come from first-time customers. A random sam
    15·1 answer
  • the legs of a right triangle are 18 cm and 80 cm. what is the length of the hypotenuse? 82 cm 85 cm 89 cm 98 cm
    7·2 answers
  • The Amazing Art Museum has 50 exhibits. On Monday, 22% of them were closed for cleaning. How many exhibits were closed on Monday
    10·2 answers
  • Write the number three million in figure
    12·2 answers
  • What is the value of n in the equation below?<br> a<br> O 3<br> O 6<br> O 12<br> 0 27
    12·1 answer
  • Trevor began his pizza delivery route with 7/10 of a tank of gas in his car. When he made it back to the pizzeria, 2/5 of a tank
    15·1 answer
  • Some one plz help!!! due in 10 min
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!