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2 years ago

Please help me with this

Mathematics

1 answer:

Simora [160]2 years ago

3 0

Answer: A and B
Explanation: If you draw the graph out it crosses the points (1,2) and (-1,-2) and those are points A and B

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Which of the following is equal to the expression below?

I am Lyosha [343]

Answer:

cuteboy979409

Step-by-step explanation:

I am sorry mam a was not able to answer this question.

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2 years ago

Find x if f(x) = 2x + 7 and f(x) = -1.

damaskus [11]

The answer is positive 5

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2 years ago

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The old building at the back of the school is badly in need of repair. the company Hsa and the executive are planning to renovat

lisabon 2012 [21]

Answer:

a. If the area of the tiles is greater than or equal to the area of all the rooms.

b. 24

c. 360

Step-by-step explanation:

a. Explain how you would estimate whether Ted has enough tiles to cover all the kitchen floors in the entire apartment building?

Ted would have enough tiles if the area of the tiles is greater than or equal to the area of all the rooms. Since we have 500 one meter square tiles, we have 500 m² of tiles.

Since the rooms are 6 m long and 4 m wide, the area of each room is 6 m × 4 m = 24 m². Since there are 15 rooms, the area of all the rooms is 15 × 24 m² = 360 m².

Since the area of the tiles = 500 m² is greater than the area of the rooms = 360 m², Ted would have enough tiles to cover all kitchen floors in the entire apartment building.

b. How many tiles, each measuring 1 square meter, are needed to cover one room floor?

Since the area of each room floor is 24 m² and the area of each tile is 1 m², so the number of 1 square meter tiles needed to cover each floor is n = area of floor/area of tile = 24 m²/1 m² = 24.

c. How many tiles are needed to cover all the floors in the entire building?

Since 24 tiles are needed to cover each floor and there are 15 rooms in the building, we would require 24 tiles/room × 15 rooms/building = 360 tiles.

So we require 360 tiles.

4 0

2 years ago

A triangle has vertices (-1,2), (3,1), and (7,2). What is the approximate perimeter of the triangle? Round the answer to the nea

marin [14]

The perimeter is 16.2. Let me know if you need me to show you how I got this

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2 years ago

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Someone please explain the solution to this :

juin [17]

Answer: 17.5 units.

Step-by-step explanation:

The triangle LAY is a similar triangle to LYW. It has the same angle measures, but different side lengths. The hypotenuse of LAY is the line LY, while the hypotenuse of LYW is the line LW.

We can use the line LY to find LW.

Use the Pythagorean Theorem to find LY:

(3.5)^2 + 7^2 = 61.25

So, LY has a length of $\sqrt{61.25}$ .

You can then use proportions to find the distance of LW.

The line LA is the base of the smaller triangle, and the line LY is the base of the larger triangle.

The line LY is the hypotenuse of the smaller triangle, and the line LW is the hypotenuse of the larger triangle.

$\frac{3.5}{\sqrt{61.25} } =\frac{\sqrt{61.25} }{y}$

You can then cross multiply to get this equation:

$61.25 = 3.5y$

So, the line LW has a length of 17.5.

3 0

3 years ago