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Allisa [31]
3 years ago
5

. Loft insulation reduces annual heating costs by 20%. After he insulated his loft, Curtley's annual heating cost was £520. Work

out wha t Curtley's annual heating cost would have been if he had not insulated his loft.
Mathematics
1 answer:
kodGreya [7K]3 years ago
4 0

624 Euro is your answer bud
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Answer these 10 questions for 30 points. serious answers only or report and low rating​
Hunter-Best [27]

Answer:

11. always

12. always

13. always

14. never

15. never

16. always

17. always

18. sometimes

19. sometimes

20. never

Step-by-step explanation:

11. A line can be defined by at least two points

12. A plane can be defined by at least three points

13. If two planes intersect, then they form a line at the intersection.

14. If two lines intersect, then they form a point at the intersection (not a segment).

15. A line does not have any endpoints (infinite in both ways).

16. If two planes are not parallel they will always intersect.

17. If two lines are not parallel they will always intersect.

18. Two points are sometimes collinear. It depends on where they are.

19. Two points are sometimes coplanar. It depends on where they are.

20. Ray MN and NM are not the same ray because the end points are different.

4 0
2 years ago
I need help with this math problem
solong [7]

Answer:

29

Step-by-step explanation:

Use PEMDAS

5^2 + 8 ÷ 2

25 + 8 ÷ 2

25 + 4

29

8 0
3 years ago
Help I don’t understand and I need this<br> Done as soon as possible
Sonbull [250]

Answer:

y - 7 = -1/4(x-4)

Step-by-step explanation:

point slope is y-y₁=m(x-x₁)

(4, 7) and (8, 6)

I like to put it in the slope-intercept form first

so... 6 - 7/ 8-4 = -1/4 (slope)

6 = -1/4(8) + b

6/(-2) = -2/(-2) + b

-3 = b

so... y=-1/4x + -3

plug it in to point slope form

y - 7 = -1/4(x-4)

hopefully that made sense :)

3 0
3 years ago
Find the domain of the graphed function.
kow [346]

<u>finding domain: </u>

to find the domain, we are finding all of the x values.

<u>example: </u>

say we have the points: (2,5) (4,8) (1,7) (8,10) (13,2)

the domain would be a list of all of the x values of all of the coordinate points. therefore the domain would be:

<u>domain: </u>

{1,2,4,8,13}

<u>conclusion:</u>

since you have not attached the function or a graph, you will have to find the domain on your own (unless you attach one now). hope this helps!

5 0
4 years ago
At a currency exchange, 10 U.S. dollars can be exchanged for 11 Euros. How many Euros will you receive for 1 U.S. dollar?
Kipish [7]

Answer: 2 Euros.


Step-by-step explanation: Because the amount of Euros was one more than the amount of dollars I added 1 more to the one dollar.

I hope this helps you! :D


3 0
4 years ago
Read 2 more answers
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