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3 years ago

If you randomly choose a number between 1 and 25, what are the odds in favor of choosing an even number?

Mathematics

1 answer:

labwork [276]3 years ago

5 0

Answer and Step-by-step explanation:

12/25, and 5/25 or 1/5

There are 12 numbers that are even that are between the numbers 1 and 25.

There are 5 numbers that are a multiple of 5 (including 5) that are between the numbers 1 and 25.

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4 years ago

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A home builder wants to decorate the post at the bottom of a stairway. One way to do this is to glue a square-based pyramid to t

AysviL [449]

We have been given net of a pyramid. We are asked to find the total surface area of the pyramid.

The surface area of the pyramid will be area of base plus area of 4 triangular sides.

We have been given that base of pyramid is square, so area of base will be square of base side.

$\text{Area of base}=(\text{10 in})^2=100\text{ in}^2$

Let us find area of one triangular side.

$\text{Area of triangle}=\frac{1}{2}\times \text{Base}\times\text{Height}$

$\text{Area of triangle}=\frac{1}{2}\times \text{10 in}\times\text{6 in}$

$\text{Area of triangle}=\text{5 in}\times\text{6 in}$

$\text{Area of triangle}=30\text{ in}^2$

Now we will multiply area of one triangular face by 4 to find area of 4 triangular faces.

$\text{Area of 4 triangular faces}=4\times 30\text{ in}^2$

$\text{Area of 4 triangular faces}=120\text{ in}^2$

Total surface area of pyramid would be area of base plus area of 4 triangular faces.

$\text{Total surface area of pyramid}=100\text{ in}^2+120\text{ in}^2$

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3 years ago

Nico looks at the data of the yellow car. He sees the car traveled 12 laps on the 4-mile track in 15 minutes. How fast is the ca

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S=D/T
S=(12*4) / .25
S=48/.25=192
S=192

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3 years ago

(2/3v)^-3 for v=9 I don't understand how to find the answer. will you help me?

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3 years ago

Para ampliar uma sala quadrada, foram acrescentados 4 metros em seu comprimento e 2 metros em sua largura, conforme a figura. Qu

ollegr [7]

Answer:

b) $x^2 + 6x + 8$

Step-by-step explanation:

Para ampliar la habitación cuadrada, se agregaron 4 metros de largo y 2 metros de ancho, como se muestra en la figura.

Deje que la longitud y el ancho de la habitación antes de la expansión sean x.

La nueva longitud de la sala es (x + 4).

El nuevo ancho de la sala es (x + 2).

La nueva área de la sala será:

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Esa es la nueva área de la habitación.

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3 years ago