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3 years ago

A cuboid measures 21 cm by 14cm by 9cm Find it’s volume

Mathematics

2 answers:

katovenus [111]3 years ago

8 0

Answer:

2646 cm³

Step-by-step explanation:

To calculate the volume (V) of a cuboid use

V = lbh ( l is length, b is breadth and h is height )

here l = 21, b = 14 and h = 9, thus

V = 21 × 14 × 9 = 2646 cm³

crimeas [40]3 years ago

3 0

Answer:

$2646~cm^{3}$

Step-by-step explanation:

There isn't really much to do here. To find the volume we multiply the three sides, which are already given to us (21, 14, 9) and just like that, we will get the volume of our cuboid.

Hope it helped,

BiologiaMagister

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If the point (3,4) is one endpoint of a vertical segment and another one is 4 units which is the endpoint of the segment (7,-4)

Kitty [74]

Answer:

(3,0)

Step-by-step explanation:

y is the verical axis

4 + 4 = 8

4 - 4 = 0

the x would stay the same because its not moving horizontally

7 0

3 years ago

Which products result in a perfect square trinomial? Select three options.

Kazeer [188]

Answer:

Second option: $(xy+x)(xy+x)$

Third option: $(2x-3)(-3+2x)$

Fifth option: $(4y^2+25)(25+4y^2)$

Step-by-step explanation:

By definition, a perfect square trinomial can be obtained by squaring binomials.

Then:

$(a+b)^2=(a+b)(a+b)=a^2+2ab+b^2\\\\(a-b)^2=(a-b)(a-b)=a^2-2ab+b^2$

Knowing this, to obtain a perfect square trinomial, the binomials that you multiply must be equals.

Therefore, the products result in a perfect square trinomial are:

$(xy+x)(xy+x)=(xy+x)^2=(xy)^2+2(xy)(x)+x^2=x^2y^2+2x^2y+x^2$

$(2x-3)(-3+2x)=(2x-3)^2=(2x)^2-2(2x)(3)+3^2=4x^2-12x+9$

$(4y^2+25)(25+4y^2)=(4y^2+25)^2=(4y^2)^2+2(4y^2)(25)+25^2=16y^4+200y^2+625$

8 0

3 years ago

Read 2 more answers

At Pizza Pi, 52% of the pizzas made last week had extra cheese. If 13 pizzas had extra cheese, how many pizzas in all were made

kodGreya [7K]

Answer:

Step-by-step explanation:

i hope this help

5 0

2 years ago

What is the volume of a rectangular prism with a length of 12 feet, a width of 7 feet, and a height of 8 feet?

Bingel [31]

Answer:

672

Step-by-step explanation:

V=LWH

V=12*7*8

V=672

6 0

3 years ago

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Farmer brown had ducks and horses one day he noticed that all of the Animals had a total of 12 heads and 32 feet how many animal

brilliants [131]

Answer:

4 horses and 8 ducks.

Step-by-step explanation:

Let the number of ducks be d and the number of horses be h.

d + h = 12

Now ducks have 2 feet and horses have 4 so:

2d + 4h = 32

Multiply the first equation by 2

2d + 2h = 24

Subtract this equation from the second equation:

4h - 2h = 32 - 24

2h = 8

h = 4.

So there were 4 horses and 12 - 4 = 8 ducks.

4 0

3 years ago