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Mamont248 [21]
3 years ago
7

For each scenario below, choose the graph that gives the best representation.

Mathematics
1 answer:
Eduardwww [97]3 years ago
3 0

Answer:

I think for the first one it'd be the last and the second one would be the second option

Step-by-step explanation:

i dont have an explantion

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Solve the system of linear equations by elimination. 3x+3=3y and 2x−6y=2
Drupady [299]
3x + 3 = 3y         < -- make this 3x - 3y = -3
2x - 6y = 2

multiply by 2 on the first equation
6x - 6y = -6
2x - 6y = 2           
subtract them

4x = -8
x = -2


substitute x = -2 into any of the equation
2x - 6y = 2
2(-2) - 6y = 2
-4 - 6y = 2
-6y = 6
y = -1

So the answer is 
(-2 , -1)
6 0
4 years ago
Read 2 more answers
One angle of a triangle measures 40°. The other two angles are in a ratio of 5:9. What are the measures of those two angles?
Travka [436]

Answer:

50 and 90

Step-by-step explanation:

(180-40)/(5 + 9) = 10

=> 50 and 90

5 0
3 years ago
A house number is displayed on a plaque in the shape of a regular 7-sided polygon. The area of the plaque is 70 squared inches.
Svetllana [295]

Answer:

The perimeter of the plaque is 28 inches.

Step-by-step explanation:

Given : A house number is displayed on a plaque in the shape of a regular 7-sided polygon. The area of the plaque is 70 squared inches. The perpendicular distance from a side to the center is 5 inches to the nearest inch.

To find : What is the perimeter of the plaque?

Solution :

The 7-sided polygon can be divided into seven triangles whose height, h is equal to the perpendicular distance from each side to the center.

The base of each triangle is equal to the length of a side, s.

The area of each triangle is A=\frac{1}{2}\times s\times h

The area of the whole polygon is A_p=\frac{1}{2}\times 7s\times h

Now, the perimeter of a regular 7-sided polygon is P=7s.

Substitute in area,

A_p=\frac{1}{2}\times P\times h

We have given, A_p=70\ in^2 and h=5\ in

70=\frac{1}{2}\times P\times 5

P=\frac{70\times 2}{5}

P=28

The perimeter of the plaque is 28 inches.

3 0
4 years ago
Circumference of the circle
dimulka [17.4K]

Answer:

The formula of circumference in a circle is 3.14 times diameter.

Step-by-step explanation:

3.14×20=62.8

The circumference is 62.8

8 0
3 years ago
How to solve this kind of question? <br><br><br> Show steps!
melomori [17]
350 dollars for the kayak + 1.50 for the fee + the 10.23 interest for the three months = 361.73
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