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
ddd [48]
3 years ago
11

Lily is redecorating her house. She needs to work out the area of the wall around her

Mathematics
1 answer:
Elanso [62]3 years ago
3 0

*the complete diagram is given in the attachment below

Answer:

✔️ 198.7 m²

✔️$219.9

Step-by-step explanation:

✔️Area around the wall to be painted = area of rectangle - area of triangle

= L×B - ½ab×sin(C)

Where,

L = 17 m

W = 14 m

a = 9.5 m

b = 8.7 m

C = 72°

Plug in the values

Area around the wall to be painted = 17×14 - ½×9.5×8.7×sin(72)

= 238 - 39.3024105

≈ 198.7 m² (nearest tenth)

✔️Cost of painting the wall:

Paint cost $21.99 per container of 20 liters

Find how many liters would be needed if 1 liter covers 1m²

Liters needed to cover 198.7 m² = 198.7*1 = 198.7 liters of paint

20 liters = 1 container,

198.7 liters = 198.7/20 = 9.935 ≈ 10 containers

1 container cost $21.99

10 containers = 21.99×10 = $219.9

You might be interested in
If the slope is 2 and the line goes through (3,-3) what is the equation?
motikmotik

Answer:

y = 2x -9

Step-by-step explanation:

To find the equation of a line using slope and a point, first use the slope to create the basic line using the slope and work from there.

For instance, the base equation here is

y = 2x

This line passes through the point (0, 0).

You can then plug in a value for x. In this case, use the value of 3, as it corresponds with your question.

y = 2 * 3

A point on the line of y = 2x would thus be (3, 6).

To make the y-value equal -3, you must then subtract from the original equation. There are 9 units between 6 and -3, so you must subtract nine units in the equation. You should get this at the end:

y = 2x -9

6 0
3 years ago
Given:3^5n=3^5(3^2n)^2 <br><br> solve for n
katovenus [111]
The correct answer is 5. Take a look at the attachment to see how I got the solution. Hope this helps! :)

6 0
3 years ago
Length=x^2 -8; W= -x+12 <br><br><br> PLEASE HELP!
ASHA 777 [7]
L×W
x^2+8x+12
am not sure
4 0
3 years ago
Find and interpret the mean absolute deviation of the data. 8,12,4,3,14,1,9,13
melomori [17]

Answer:

8

Step-by-step explanation:

8+12+4+3+14+1+9+13=64, 64/8=8

7 0
2 years ago
Read 2 more answers
Can someone answer it
Troyanec [42]
Answer what? This question? Oh, I'm answering it right now. Did you have another question out? Well, I can't see it. 
3 0
3 years ago
Other questions:
  • 54 books make up 25% of the books in the library. How many books are there in the library.
    9·2 answers
  • Solve for x. −1/2(x 2) 1 1/2x=3
    9·1 answer
  • What is the equation for a line with the point 1,5 and a slope of 3
    11·2 answers
  • The scatter plot for which type of data is most likely to suggest a linear association between
    6·1 answer
  • We get the same result if we multiply a number by 4 or if we multiply the number by 7 and then add 9
    6·1 answer
  • Compute the following 5/9+1/4
    12·2 answers
  • Which expression represents half the sum of five and a number b?
    9·2 answers
  • 2. The sum of two numbers is 67 and their difference is 3. Find the two numbers.
    5·1 answer
  • What is the slope of the line through (-4,2) and (3, 3)? "/ yo Choose 1 answer: 19 21 42 142 A А 7 5 B 7 5 5 7 5 7 e slope an​
    10·1 answer
  • What is the volume of the triangle are present <br> 8cm<br> 3cm<br> 13cm
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!