3 years ago

A polyhedron has 6 vertices and 9 edges. How many faces does it have?

Mathematics

2 answers:

Sidana [21]3 years ago

7 0

5 faces
The polyhedron is a Triangular Prism.

arlik [135]3 years ago

3 0

Answer:

Step-by-step explanation:

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If the circumference of the circle is 37.68 units, what is the area? (Use 3.14 for pi .)

cricket20 [7]

Answer:

Area of the circle = $113.04\;units^2$

Step-by-step explanation:

Circumference = $37.68\;units$

Circumference of the circle = $2\times \pi \times r$

As,

$\pi =\dfrac{22}{7}=3.14$

$37.68=2\times \pi \times r\\\\37.68=2\times 3.14 \times r\\\\37.68=6.28\times r\\\\r=\dfrac{37.68}{6.28} \\\\r=6\;units$

Area of a circle = $\pi \times r^2$

$=3.14\times (6\times 6)\\\\=3.14\times 36\\\\=113.04\;units^2$

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3 years ago

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kenny6666 [7]

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Step-by-step explanation:

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3 years ago

What is the final amount if 975 is increased by 1% followed by a further 9% increase?

alexgriva [62]

975 x 1.01 = 984.75
984.75 x 1.09 = 1073.38

3 0

4 years ago

Re-write the quadratic function below in Standard Form<br> y=5(x + 1)^2+9

omeli [17]

Answer:

y = 5x^2+10x +14

Step-by-step explanation:

y = 5(x+1)^2+9

= 5(x^2+2x+1)+9

= 5x^2+10x +14

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3 years ago

The density of a fish tank is 0.3 fish over feet cubed. There are 15 fish in the tank. What is the volume of the tank?

ale4655 [162]

Since Density = mass/ volume (d = m / v), and assuming the 15 fish weigh 1 gram each - if weight of each fish isn't given - (making that a total of 15 grams),

D = m / v
0.3 = 15 / v
v = 15 / 0.3 = 50 ft cubed

Hope this answers your question correctly :)

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3 years ago