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2 years ago

Can you explain to me (detailed) on how to do this problem? I will give you a brainly if you get this right.

Mathematics

1 answer:

Alex_Xolod [135]2 years ago

5 0

Answer:

Area: 33ft

Step-by-step explanation:

First, you find the area of the triangle normally as you would with any normal shape.

Work: L x W = A

6ft x 11ft = 66ft

Next, now that you have the area, you need to divide into 2 since a triangle isn't an actual full shape in this sense.

The formula for the area of a triangle is: (L x W)(1/2).

Work: 66ft x 1/2 = 33ft

Therefore your area is 33ft.

Hope this helps!

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Y_Kistochka [10]

I think the answer is a

6 0

2 years ago

Read 2 more answers

I need help with making predictions with probability please help me correctly answer these questions.

Semmy [17]

Answer:

1. So the porpotion should be 25/100 = x/120

You have this because you know that 25% of the dogs who go to ABC veterinarian need a rabies booster. So 100% of the dog should be 120 dogs, and now our job is to find how many dogs make up 25% percent of the total number.

According to our porpotion, we have:

(120 . 25)/100 = 30 (dogs)

Another way of understanding this is that you have to find 25% of the total amount, so just take that total number and multiply it with 25% or 25/100 which is 0.25 as well, that's why we multiply it with 25 first and then divide it to 100 later.

*I guess there is no need of explaining it

0.9 × 550 = 495

6 0

2 years ago

Please can I have some help thank you :)

Evgen [1.6K]

9514 1404 393

Answer:

£592 for 16 boxes

Step-by-step explanation:

The classroom floor area is ...

A = LW = (8.8 m)(2.2 m) = 19.36 m²

The cupboard floor area is ...

A = (2.3 m)(2.1 m) = 4.83 m²

Then the total area to be covered is ...

19.36 m² +4.83 m² = 24.19 m²

At 1.6 m² per box, the number of boxes required is ...

(24.19 m²)/(1.6 m²/box) = 15.12 boxes

If we assume we can only purchase whole boxes, we need to purchase 16 boxes to cover the floor. The cost will be ...

(16 boxes)(£37/box) = £592 . . . . cost of laminate to replace the floor

8 0

3 years ago

If-1 is a root of f), which of the following must be true?

ANEK [815]

Answer:

A factor of f(x) is (x + 1).

Step-by-step explanation:

When we put x+1= 0 then we get the value x= -1

This value is then put into the function to find out whether it is a root or not. For a root to exist it must not have a remainder or the remainder must be zero.

Suppose the function is

F(x)= 2x³ - 42x - 40

f(-1)= 2(-1)³ - 42(-1) - 40

f(-1)= -2 + 42- 40

f(-1)= 0

This gives -1 as the root of the function.

6 0

2 years ago

Triangle RST has vertices R(2, 0), S(4, 0), and T(1, –3). The image of triangle RST after a rotation has vertices R'(0, –2), S'(

sleet_krkn [62]

Answer with explanation:

Pre -image= Vertices of Δ R ST=R(2, 0), S(4, 0), and T(1, –3)

Image of Δ R ST after rotation= R'(0, –2), S'(0, –4), and T'(–3, –1)

Pre-Image lies in Fourth Quadrant and Image lies in Third Quadrant.

If triangle is rotated by different angles in anticlockwise direction,then

$(a,b)_{90^{\circ}}=(-b, a)\\\\(a,b)_{180^{\circ}}=(-b, -a)\\\\(a,b)_{270^{\circ}}=(b, -a)$

If triangle is rotated by different angles in Clockwise direction,then

$(a,b)_{90^{\circ}}=(b, -a)\\\\(a,b)_{180^{\circ}}=(-b, -a)\\\\(a,b)_{270^{\circ}}=(-b, a)$

⇒→So, Pre image that is ,Δ R ST having vertices ,R(2, 0), S(4, 0), and T(1, –3) when rotated by either 90° in clockwise direction or by 270°, in anticlockwise Direction to get Image Δ R' S'T' having vertices R'(0, –2), S'(0, –4), and T'(–3, –1) .

7 0

3 years ago