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sergeinik [125]
2 years ago
8

Help me answer this question

Mathematics
1 answer:
dezoksy [38]2 years ago
7 0
This question is simple as all we must find is the area of the room. To find the area of a quadrilateral, we should multiply the length by the width. In this case, that is 10 and 5.

10
<u>x5
</u>50
<u>
</u>Using the math above, we can see that Mary needs 50 square yards of carpet to cover the entire dining room floor.<u>
</u>
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#!). Two planes leave New York at 10am, One heading for Europe at 600mph and one heading in the opposite direction at 150mph. At
timurjin [86]

Speed = Distance / time

Distance = Speed x time

In t hours, first plane travels = 600 t miles

In t hours, the second plane travels =150 t miles

After t hours the distance between the two planes is:

(600t+150t)= 750t ( since both travel in opposite directions)

When the distance is 900 miles:

750t= 900

Solve for t:

t= 900/750

t= 1.2 hours

After 1.2 hours.

1.2 x 60 = 72 minutes = 60 +12 = 1 hour and 12 minutes

Since both leave at 10 pm:

10am + 1 hour and 12 minutes : 11:12 am

They will be 900 miles apart at 11:12 am

Each one traveled:

Plane 1:

Distance: Speed x time = 600 mph x 1.2 = 720 miles

Plane 2:

Distance = Speed x time = 150 mph x 1.2 = 180 miles

6 0
10 months ago
The solutions to a certain quadratic equation are x = 4 and x = -3. Write the equation in standard form below.
Kamila [148]

Answer:

x2 - x - 12 = 0

Step-by-step explanation:

(x - 4) (x + 3) = 0

x(x + 3) -4(x + 3) = 0

x2 + 3x -4x - 12 = 0

x2 -x -12 = 0

4 0
3 years ago
Prove tan3A= (cos(2A)-cos(4A))/ (sin(4A)- Sin(2A)) ...?
aivan3 [116]
The solution to the problem is as follows:

<span>cos2A - cos4A = -2 sin(6A/2).sin(-2A/2) = +2 sin(3A).sinA
 
and
 
sin4A - sin2A = 2 cos(6A/2).sin(2A/2) = 2 cos(3A).sinA

Hence RHS = (cos(2A)-cos(4A))/ (sin(4A)- Sin(2A)) = sin 3A / cos 3A = tan 3A = LHS
</span>

I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!
5 0
3 years ago
11x+5+-11x+29.........
Volgvan

You can add like terms. Like terms are terms that have the same variables and the same exponent.

11x + 5 + -11x + 29 =

= 11x + -11x + 5 + 29

= 34

Answer: 34

6 0
3 years ago
Read 2 more answers
Fill in the blanks<br> 3:4 = 6:_ = 9:_ = _:16 = _:20 = 18:_?????
Virty [35]

3:4 = 6:8 = 9:12 = 12:16 = 15:20 = 18:24

3 0
3 years ago
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