What is the area of the trapezoid showroelow? 7 25 4.

Mathematics

1 answer:

Irina-Kira [14]2 years ago

6 0

I wish I knew this one also

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Suppose a different student reaches in the bag, randomly selects their twenty chips, and estimates that 60% of the students are

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12 chips if you are trying to find 60% of 20

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3 years ago

Una piscina rectangular de 15 metros de largo por 9 metros de ancho està rodeada por un

stira [4]

Answer: 2 meters.

Step-by-step explanation:

Let w = width of the cement path.

Dimensions of pool : Length = 15 meters , width = 9 meters

Area of pool = length x width = 15 x 9 = 135 square meters

Along width cement path, the length of region = $2w+15$

width = $2w+9$

Area of road with pool = $(2w+15) (2w+9)$

$= 4w^2+30w+18w+135\\\\=4w^2+48w+135$

Area of road = (Area of road with pool ) -(area of pool)

$\Rightarrow\ 112 =4w^2+48w+135- 135\\\\\Rightarrow\ 112= 4w^2+48w\\\\\Rightarrow\ 4 w^2+48w-112=0\\\\\Rightarrow\ w^2+12w-28=0\ \ \ [\text{Divide both sides by 4}]\\\\\Rightarrow\ w^2+14w-2w-28=0\\\\\Rightarrow\ w(w+14)-2(w+14)=0\\\\\Rightarrow\ (w+14)(w-2)=0\\\\\Rightarrow\ w=-14\ or \ w=2$

width cannot be negative, so w=2 meters

Hence, the width of the road = 2 meters.

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3 years ago

Sound travels through air at about 13 of a kilometer per second. If thunder is heard 6 seconds after a flash of lightning, about

Margarita [4]

If sound travels through air at around 13 of a kilometer per second, and thunder is heard 6 seconds after a flash of lightning, it would be 78ths of a kilometer. Although, I can't simplify that for you. Sorry. ^-^

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2 years ago

Cubic bins with closed tops are used to transport melons to the farmers market. The edge length of each bin is 1.5 m. What is th

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We know, Surface area of a Cube = 6a²
Here, Edge length(a) = 1.5

Substitute the value,
s = 6(1.5)²
s = 6 * 2.25
s = 13.5

In short, Your Answer would be Option D

Hope this helps!

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2 years ago

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Shtirlitz [24]

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