A solid has 20 faces and 12
vertices. How many edges
does it have?
Euler's Formula: F + V - E = 2
Enter

Answers

Answer 1

Answer:

30

Step-by-step explanation:

20+12-E=2

32-E=2

-E=-30

E=30


Related Questions


A parabola can be drawn given a focus of (1,3) and a directrix of x = -7. What
can be said about the parabola?
The parabola has a vertex at (
), has a p-value of
and it


PLEASE HELP

Answers

Answer:

Below.

Step-by-step explanation:

The parabola will open to the right and will be symmetrical about y = 3.

The vertex is halfway between x = 1 and x = -7 making it at (-3, 3).

The p value is the distance between the vertex and the focus - here it is 1 - -3

= 4.

Answer:

The parabola has a vertex at (-3, -6), has a p-value of 4 and it opens right.

Step-by-step explanation:

The cup dispenser at a water cooler contains cone-shaped paper cups with the
dimensions shown.
6 cm
8 cm
Approximately how many cubic centimeters of water can each cup hold?

Answers

48 cubic centimeters

What is the answer?
12 x 4 1/2 =?

Answers

Answer:

54

Step-by-step explanation:

What I would do is multiply 12x4 first to get 48, then after I'd multiply 12x1/2 to get 6 then I'd add them together to get 54.

7x+10=36

y=2x+9

x=

y=

Answers

Answer:

x=26/7

y=115/7

Step-by-step explanation:

7x+10=36>>subtract 10 from 10 and 36 you get 7x=26>>>divide both sides by 7>>>>x=26/7

To find find y you substitute the x for 26/7>>2(26/7)+9=115/7

Can someone please help me

Answers

A. 6x^2 + 24
B. 6x^2 - 8
C. 6x^2
D. 6x^2 + 4
E. 6x^2 + 8c
F. 6x^2 + 8c + 40

Find the slope of the line passing through the pair of points. (- 4, 5) and (0,2)

Answers

Answer:

It should be -3/4

Step-by-step explanation:

I checked with another app

Given that 4x – 5y = 21
Find x when y = -4
Give your answer as a fraction in its
simplest form.​

Answers

those who confess with their mouth Jesus is Lord and truly believe in their heart God rose him from the dead shall be saved turn away from ur sins ! sorry i couldn’t help

Need help understanding this problem.​

Answers

basically it’s r=c/2pi meaning it’d be r=62/2(3.14) which would give you r=9.87

What is the value of y?

Answers

Answer and Step-by-step explanation:

We are given a triangle and are asked to solve for the value of y.

We know that the angles in a triangle add up to 180 degrees. So let's add all of the angles together and equal it to 180.

2y + y + 10 + 50 = 180

Combine like terms.

3y + 60 = 180

Now subtract each side by 60.

3y = 120

Finally, divide each side by 3.

y = 40

We get the value of y to be 40.

#teamtrees #PAW (Plant And Water)

How many swimmers had lap totals between 50 to 60 laps?

Answers

Answer:

4 swimmers

Step-by-step explanation:

what is the domain of f (x) = 4 + 2x on a graph when the range is (0,6)

Answers

Answer:

(-2, 1).

Step-by-step explanation:

When f(x) = 0

4 + 2x = 0

2x = -4

x = -2.

Ehen f(x) = 6

4 + 2x = 6

2x = 6-4 = 2

x = 1.

What is the correct multiple choice option?

Answers

Answer:

cost per tennis ball

Step-by-step explanation:

Silas claims that the equation y=2+mx, where m is a real number, represents a function whose graph is a straight line.

Select the statement that BEST classifies this claim.

Answers

Answer:

The claim is true for all values of m.

Step-by-step explanation:

Given

[tex]y = 2 + mx[/tex]

Required

Which claim is true [See comment for options]

A linear equation is represented as:

[tex]y = mx + c[/tex]

Where

[tex]m = slope[/tex]

And the value of m knows no bound

i..e

[tex]m > 0[/tex]

[tex]m = 0[/tex]

[tex]m < 0[/tex]

Hence, (a) is correct

in line 5, the word vocation means​

Answers

Answer:

there's no picture, repost with a picture or more details

Answer:

a type of work or a way of life that you believe to be especially suitable for you

someone help me question below
(please NO LINKS)

Answers

Answer:

option A 12x is the correct answer

The answer is A) 12x

what is the distance of between (-5,8) and (12,8)
plz help

Answers

Answer:

17

Step-by-step explanation:

-5 is 17 points away from 12.

Please help what does B equal and C equal :)

Answers

Answer:

m∠b=m∠c=61°

Step-by-step explanation:

The 119° angle and ∠b/∠c are supplementary angles. ∠b and ∠c are congruent because they are vertical angles and they are also both supplementary to the 119° angle. I will use b to find c.

[tex]b+119=180[/tex]

[tex]b=61[/tex]

Since b and c are equal, c=61 too.

The two bases of a trapezoid measure 14 inches and 10 inches respectively. The trapezoid's height is 8 inches. What is the area of the trapezoid?

Answers

Answer:

A.O.T=1/2×height(sum of bases)

Step-by-step explanation:

A.O.T=1/2×8(14+10)

=4(24)

= 96

Answer:

96

Step-by-step explanation:

I really need help with this my deadline is very soon​

Answers

Answer:

[tex](3)\ y = -x[/tex]

[tex](5)\ y = -3x -2[/tex]

Step-by-step explanation:

Required

The equation in slope intercept form

Solving (3):

[tex]m = -1[/tex]

[tex](x_1,y_1) =(4,-4)[/tex]

The equation in slope intercept form is:

[tex]y = m(x - x_1) + y_1[/tex]

This gives:

[tex]y = -1(x - 4) -4[/tex]

Expand

[tex]y = -x + 4 -4[/tex]

[tex]y = -x[/tex]

Solving (5):

[tex]m = -3[/tex]

[tex](x_1,y_1) = (1,-5)[/tex]

The equation in slope intercept form is:

[tex]y = m(x - x_1) + y_1[/tex]

This gives:

[tex]y = -3(x - 1) - 5[/tex]

Expand

[tex]y = -3x + 3 - 5[/tex]

[tex]y = -3x -2[/tex]

1/2(5-2x) = 1/2x - 8

Answers

Answer:

=

7

Step-by-step explanation:

Billy makes $7 a week in allowance plus $6 for each lawn that he mows. This week Billy wants to make over $25. Select the inequality for the number of lawns he needs to mow.

Answers

Answer:

Billy would need to mow 4 laws to make over $25.

An industrial machine produces widgets, but it has a 0.07 detective rate. What is the probability that the machine produces fewer than 5 detective widgets in a production run of 100 items?

Answers

Answer:

0.22

Step-by-step explanation:

defective rate is 7 out of 100

defective rate of 4, or 3, or 2, or 1 defective is:

7/100 + 6/99 + 5/98 + 4/97 ≈ 22/100

The required probability for fewer than 5 defective rate is 0.10

An industrial machine produces widgets, but it has a 0.07 defective rate.

What is the probability?

Probability, can be define as the ratio of favorable events to the n number of total events.


defective rate fewer than 5

p of 4 defective + p for 3 defective+ p for 2 defective + p for  1 defective.

total p = 4/100 + 3/99 + 2/98 + 1/97 ≈ 0.10

Thus, The required probability for fewer than 5 defective rate is 0.10

Learn more about probability here:

brainly.com/question/14290572

#SPJ2

Help please I'll give Brainlyest

Answers

Answer:

B.) 3x=15

Step-by-step explanation:

This is because you multiply 3 by x and if x=5 then it would be 3x5 thus resulting in 15

1) Plug 5 into all the spots for x. See if it makes the equation true.

A. 2+5 = 3  Nope

B. 3(5) = 15 Yep

C. 5/2 = 10 Nuh-uh

D. 5-7 = 12  Nah

B is the answer :)

I'm not sure if you need the answer to #2 but I'll answer it anyway. :)

2) An equation has to have a solution. This means it has an equal sign. C is the only one that has an equal sign.

C is the answer :)

PLEASE HELP
which is equivalent??

Answers

Answer:

the 3 one

Step-by-step explanation:

the rest would be like 0.9721111111 repeating but the 3 one won't be so its 3 one hive me brainlest

Pls helllppppppppi give brainliest

Answers

Answer:

2/3 + ( -2 1/3) = -1 2/3

Step-by-step explanation:

In Zoie's class, 7/10 of the students walk to school. Another 1/5 of the students ride their bikes. The other students ride on the school bus. What fraction of the class rides on the school bus?

Answers

Answer:

ion know

Step-by-step explanation:

7/10 + 1/5 =

7/10 + 2/10  (1/5 x 2 = 2/10) = 9/10

10/10 - 9/10 = 1/10

therefore, 1/10 of the class rides on the school bus.

i need help i dont get it comment if you need anything

Answers

Answer:

what is question 10?

Step-by-step explanation:

❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️

Answers

Answer:

D. 5/9hope it helps

Step-by-step explanation:

by solving the equation we get this answer

Answer:

Option D

5/9

Step-by-step explanation:

0.5(bar) = 0.5555555

0.55

9_/50

-45

050

-45

05

Thus, 0.5(bar) = 5/9

-TheUnknownScientist

I could use some help!!

Answers

Answer:

84

Step-by-step explanation:

The interquartile range is obtained using the relation :

Third quartile (Q3). - First quartile (Q1)

From. The boxplot :

Q3 = 96

Q1 = 12

Interquartile range (IQR) = Q3 - Q1 = 96 - 12 = 84

what else would you need to measure the area of something

Answers

The simplest (and most commonly used) area calculations are for squares and rectangles. To find the area of a rectangle, multiply its height by its width. For a square you only need to find the length of one of the sides (as each side is the same length) and then multiply this by itself to find the area.

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