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
Deffense [45]
3 years ago
12

A house plan Is drawn to a scale 1cm to 2m. What is the length of a window 2.5cm long on the plan?

Mathematics
1 answer:
slamgirl [31]3 years ago
8 0

1cm = 2m

=> 1cm = 200cm

2.5cm = 2.5 × 200cm = 500 cm = 5m

So, the length of window is 500cm or 5m.

You might be interested in
In the diagram, which pair of angles are alternate interior angles?
mars1129 [50]

Answer:

2+8, 3+5

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
Factorise -75ab² - 15ac
Verdich [7]

Answer:

1)  -15·a·(5·b² + c)

2) h < 4

3) 4·x² - 9

4) 1792

5)  156°

6) 2t cm

7) 2·a·m·(2·m - 3)

8)  10 cm

9) 0.00051

10)  #47,250

11)  -10·p·q

12) 1.35 × 10⁻⁴

13) 320°

14) 20 cm

15) 12·x²·y²

16) 6.36 × 10⁵

17) 4 cm

18)  225°

19) 1034 cm²

20) 29

Step-by-step explanation:

1) The given expression is -75·a·b - 15·a·c

Which can be expressed as -15·a·(5·b² + c)

2) The height, h < 2 × 12/6 = 4

h < 4

3) (2·x - 3)·(2·x + 3) = 4·x² - 9

4) The selling price = 1.12 × 200 × 8 = 1792

5) The interior angle of a polygon is given by the relation;

(n - 2)×180/n for 15, we get;

(15 - 2)×180/15 = 156°

6) 2t cm

7) 4·a·m² - 6·a·m = 2·a·m·(2·m - 3)

8) Slant height = √(8² + 6²) = 10 cm

9) 51 × 10⁻⁵ = 0.00051

10) Cash price = #54,000 × (1 - 0.125) = #47,250

11) -40·p·q÷(-2)² = -10·p·q

12) 0.003 × 0.045 = 1.35 × 10⁻⁴

13) N40°W = 320°

14) The base diameter of the cylinder = √(4 × (700×π cm³/7)/π) = 20 cm

15) The LCM of 2·x²·y, 3·x·y² is 12·x²·y²

16) 636,000 = 6.36 × 10⁵

17) 1/3·π·r²·h₁ = π·r²·h₂

h₂/h₁ = 1/3·π·r²/( π·r²) = 1/3

h₂/12 =  1/3

h₂ = 12/3 = 4 cm, the height of the cylinder = 4 cm

18) The angle = 180 + 45 = 225°

19) The total surface area = 22/7×14²/4 +  22/7 ×14 × 20 = 1034 cm²

20) The number is 58/2 = 29.

4 0
3 years ago
What number must be added to the expression below to complete the<br> square?<br> х2 - 20х
DochEvi [55]

Answer:

100

Step-by-step explanation:

This is formula fot completing the square:

(b/2)^(2)

(-20/2)^(2)

100

6 0
2 years ago
If a circular playground has an area of 144 m2. What is the diameter of the playground?
zhuklara [117]

Answer:

The diameter is about <u>13.55m</u>

Step-by-step explanation:

Calculator

7 0
1 year ago
Help totally lost plz help due today
ch4aika [34]

Answer:

  5.  1

  6.  Kari is not correct.

Step-by-step explanation:

5. All like terms can be combined. There will be one term remaining after they are.

___

6. The appropriate factoring is x(x+1). This is not the same as x(2x+1).

In order to show equivalence, you need to show that the expressions produce the same result for as many different values of x as the degree of the expression plus 1. That is, you'd need to show equivalence for <em>3 different values of x</em>, as a minimum for this second-degree expression.

6 0
3 years ago
Other questions:
  • What is the prime numbers between 21 -30
    11·1 answer
  • Loretta is trying to build the largest taco in the world . she use 2000 pound of ground beef one tenth as many pound of cheese a
    15·2 answers
  • An 8oz cup of coffee has about 184 mg of caffeine. This is 5 times much caffeine as in a 12 oz soft drink. Write and solve an eq
    5·2 answers
  • Bianca puts $10 in a savings account each month and an extra $20 when she receives money for her birthda If her birthday was thi
    14·1 answer
  • To change direction by making a to point turn you’ll need to use ___
    12·1 answer
  • Write the equation of the line that passes through (3,-2) and is
    8·1 answer
  • A chess player moves a knight from the location (3, 2) to (5, 1) on a chessboard. If the bottom-left square is labeled (1, 1), t
    15·2 answers
  • share 400 sweets between two boys such that one boy gets 60 more sweets than the other. what are the two shares?​
    14·1 answer
  • How many groups of 3/4 are in 6 and 1/2
    5·1 answer
  • Hello i’m bored<br><br> anyone want to talk
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!