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inysia [295]
3 years ago
11

Anyone help me solve this? And show work please

Mathematics
1 answer:
inessss [21]3 years ago
4 0

Answer:

A) 2a + 6

Step-by-step explanation:

(5a + 3) + (2a + 3) + x = 9a + 12

Add both side lengths plus the unknown side to equal the perimeter.

7a + 6 + x = 9a + 12

-7a -6          -7a   -6          Subtract 7a + 6 on both sides

x = 2a + 6 This is the missing side length.

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Calculate the area and perimeter plz help
kramer

Answer:

Figure 1:

Area: 30m^2

Perimeter: 23.6m

Figure 2:

Area: 98.8km^2

Perimeter:56.5km

Step-by-step explanation:

Area is base x height.

To get the perimeter, add up all the sides.

Figure 1:

Area:

6x5=30m^2

Perimeter: 6+5.8+6+5.8=23.6m

Figure 2:

Area:

7.6x13 = 98.8km^2

Perimeter:7.6+15+20+13.9=56.5km

7 0
3 years ago
I don’t know if this answer is correct !!!!!!!! WILL MARK BRIANLIEST !!!!!!!!!!!!! PLEASE HELP
Nataly [62]

Answer:

What is this ?

Step-by-step explanation:

Sorry i can't answer it because i can't see it.

7 0
3 years ago
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It is impossible for a system of linear equations to have exactly two solutions. explain why
SCORPION-xisa [38]

A linear equation represents a straight line.Thus, the solution of the system of linear equation depends on whether the lines intersect, not intersect or same line.

We have below cases:-

  • The lines are non parallel and intersect at exactly one point. In this case we have one solution.
  • The lines are parallel and hence never intersect. There is no solution in this case.
  • The two lines represents the same line. Hence, infinitely many solutions.

We never got exactly two solutions because two lines can intersect at a single point.

8 0
4 years ago
How much force does the atmosphere exert on one side of a vertical wall 4. 00-m high and 10. 0-m long?
serious [3.7K]

A force of 4.05×10⁶ N was exerted on one side of the wall.

<h3>What is the force?</h3>

Force is an external agent capable of changing the state of rest or motion of a particular body. It has a magnitude and a direction.

The following data were obtained from the question:

Breadth (B) = 4 m

Length (L) = 10 m

Standard pressure (P) = 101325 Nm¯²

Next, we shall determine the area of the wall. This can be obtained as follow:

Area (A) = length (L) × breadth (B)

A = 10 × 4

A = 40 m²

Finally, we shall determine the force exerted on one side of the wall as follow:

Standard pressure (P) = 101325 Nm¯²

Area (A) = 40 m²

Pressure (P) = Force (F) /Area (A)

101325 = F/40

F = 101325 × 40

F = 4.05×10⁶ N.

Therefore, a force of 4.05×10⁶ N was exerted on one side of the wall.

Learn more about force here;

brainly.com/question/17718499

#SPJ4

4 0
2 years ago
5x - 2y = 15 2x + 4y = 12 According to the strategy you learned in this lesson, what is the best first step in solving the syste
Genrish500 [490]
The answer to the question

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3 years ago
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