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3 years ago

What is the sum of the number of faces the number of vertices and number of edges

Mathematics

2 answers:

scoray [572]3 years ago

8 0

Answer:

There are 5 faces, 5 vertices, and 8 edges, so all of that together is 18

german3 years ago

4 0

Answer:

5 faces, 5vertices, 8 edges

Step-by-step explanation:

Faces+,vertices -2=edges

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What is the equation of the line through (4,5) and (0,-3)

Allisa [31]

Answer:

y = 2x - 3

Step-by-step explanation:

Slope intercept equation of a line:

y = mx + b

(0, -3) is the y-intercept, so b = -3

We have

y = mx - 3

Now we use the two points to find the slope.

slope = m = (-3 - 5)/(0 - 4) = -8/(-4) = 2

y = 2x - 3

8 0

2 years ago

Read 2 more answers

Total = $5.33 Tax rate = 8% How much was the item?

kow [346]

Answer:

42.64

Step-by-step explanation:

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2 years ago

Find the volume of the cone. Use 3.14 for π. Round to the nearest tenth.

Leviafan [203]

$Volume\,\,of\,\,cone=1527.1\,\,cm^3$

So, Option C is correct.

Step-by-step explanation:

We need to find Volume of cone.

We are given:

π = 3.14

Length = 27 cm

Diameter = 15 cm

The formula used to find Volume of cone is:

$Volume\,\,of\,\,cone=\frac{1}{3}\pi r^2h$

We are given diameter but we need radius in the formula

So, Radius = Diameter/2 = 15/2 = 7.5 cm

We need to find height of cone.

Using Pythagoras theorem:

$h^2=p^2+b^2\\ (27)^2=p^2+(7.5)^2\\729=p^2+56.25\\p^2=729-56.25\\p^2=672.75\\Taking\,\,square\,\,root:\\p=25.93$

So, Height of cone = p= 25.93

So, r= 7.5 and h= 25.93 and π = 3.14

Putting values in the formula:

$Volume\,\,of\,\,cone=\frac{1}{3}3.14*(7.5)^2*25.93$

$Volume\,\,of\,\,cone=1526.62$

Rounding off to the nearest tenth:

$Volume\,\,of\,\,cone=1527.1\,\,cm^3$

So, Option C is correct.

Keywords: Volume of cone.

Learn more about Volume of cone at:

#learnwithBrainly

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3 years ago

In winter, the price of apples suddenly went up by $ 0 . 7 5 $0.75dollar sign, 0, point, 75 per pound. Sam bought 3 33 pounds of

elena-s [515]

Your answer ,It would be 24,925

6 0

2 years ago

Answer please will mark Brainly

elena55 [62]

Answer:

if im correct i think the answer is b

Step-by-step explanation:

3 0

3 years ago