A solid has 20 vertices and 30
edges. How many faces does
it have?
Euler's Formula: F + V - E = 2

Answer:

0.098

Step-by-step explanation:

Answer:

look at the picture i sent

Answer:

Step-by-step explanation:

The square is:  a²-2ab+b²

We have

[tex]x^2-3x[/tex]

it's:   [tex]x^2-2\cdot x\cdot\frac32[/tex]

so we need:   [tex]\left(\frac32\right)^2=\frac94[/tex]

[tex]x^2-2\cdot x\cdot\frac32+\frac94-\frac94+20=0\\\\(x-\frac32)^2-2.25+20=0\\\\(x-\frac32)^2=-17.75[/tex]

witch, of course, means no solution

2^10/5 = 2^2 = 4

................................

Answer:

undefined

Step-by-step explanation:

line is straight up and down

Answer:

Undefined. It ends up being 3/0 which can't happen so it remains undefined.

Step-by-step explanation:

Answer:

the volume if a freezer is the same amount of kitchen counter space inside it

Step-by-step explanation:

Answer:

z

Step-by-step explanation:

Answer:

In Pic

Brainliest?

Step-by-step explanation:

Answer: Mark as brainliest "If" help

Step-by-step explanation: Hope It helps,,

Answer:

120 ways

Step-by-step explanation:

For this question, you just have to use the permutation technique or multiplication rule.

By using the multiplication rule,

6×5×4=120 ways

By using the permutation technique,

6P3=120 ways

correct me if I'm wrong

Answer:

x      -1       0       1       2       3

y      2       4       6      8       10

Step-by-step explanation:

y = 2x + 4

x = -1: y = 2(-1) + 4 = 2

x = 0: y = 2(0) + 4 = 4

x = 1: y = 2(1) + 4 = 6

x = 2: y = 2(2) + 4 = 8

x = 3: y = 2(3) + 4 = 10

x      -1       0       1       2       3

y      2       4       6      8       10

Answer:

The answer is C: 2n - 12. Hope this helps!

Answer:

The coordinates of B' and C' are [tex]B'(x,y) = (4,4)[/tex] and [tex]C'(x,y) = (8, -1)[/tex].

Step-by-step explanation:

Vectorially speaking, the translation of a point is represented by the following operation:

[tex]P'(x,y) = P(x,y) + T(x,y)[/tex] (1)

Where:

[tex]P(x,y)[/tex] - Original point.

[tex]P'(x,y)[/tex] - Translated point.

[tex]T(x,y)[/tex] - Translation vector.

First, we need to calculate the translation vector after knowing that [tex]A(x,y) = (3,4)[/tex] and [tex]A'(x,y) = (6,2)[/tex]. That is:

[tex]T(x,y) = A'(x,y) - A(x,y)[/tex]

[tex]T(x,y) = (6,2) - (3,4)[/tex]

[tex]T(x,y) = (3, -2)[/tex]

Finally, we determine the coordinates of points B' and C':

[tex]B(x,y) = (1,6)[/tex], [tex]T(x,y) = (3, -2)[/tex]

[tex]B'(x,y) = (1,6) + (3,-2)[/tex]

[tex]B'(x,y) = (4,4)[/tex]

[tex]C(x,y) = (5,1)[/tex], [tex]T(x,y) = (3, -2)[/tex]

[tex]C'(x,y) = (5,1) + (3,-2)[/tex]

[tex]C'(x,y) = (8, -1)[/tex]

The coordinates of B' and C' are [tex]B'(x,y) = (4,4)[/tex] and [tex]C'(x,y) = (8, -1)[/tex].

Answer:

Nurse Sanders examines immunization records for this past winter at the school where she works How many students were vaccinated but got the flu anyway.

A.18

The correct answer is A. 14 number of  students were vaccinated but got the flu anyway.

Based on the given information, we can determine the number of students who were vaccinated but got the flu by subtracting the number of students who were vaccinated and didn't get the flu from the total number of vaccinated students.

Number of students vaccinated but got the flu = Total vaccinated - Vaccinated and didn't get flu

Number of students vaccinated but got the flu = 600 - 586

Number of students vaccinated but got the flu = 14

Therefore, the correct answer is A. 14 number of  students were vaccinated but got the flu anyway.

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A boat leaves the dock and travels 9 miles due south, then 12 miles due west. Hence, the length of the boat from the dock will be 15 miles.

If ABC is a triangle with AC as the hypotenuse and angle B with 90 degrees then we have:

[tex]|AC|^2 = |AB|^2 + |BC|^2[/tex]  

where |AB| = length of line segment AB. (AB and BC are the rest of the two sides of that triangle ABC, AC being the hypotenuse).

A boat leaves the dock and travels 9 miles due south, then 12 miles due west.

Let x be the length of the boat from the dock.

From the Pythagoras' theorem

[tex]|x|^2 = |12|^2 + |9|^2 \\\\x^2 = 144 + 81\\\\x^2 = 225\\\\x = \sqrt{225} \\\\x = 15[/tex]

Hence, the length of the boat from the dock will be 15 miles.

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Answer:

IQR = 3

Step-by-step explanation:

if you create a box plot from the data provided, you get these values:

minimum:  4

quartile 1:  5

median:  6.5

quartile 3:  8

max:  22

range:  18

IQR is the difference between the 3rd and 1st quartiles

∴ the answer is 8-5 or 3

Answer:

I believe it would be 12.9

Step-by-step explanation:

perimeter is all of the outside lengths combined. if you take the 61.1 and subtract the lengths it gives you, the remaining length should be your answer

Answer: Choice D

|-50-12| = |-62| = 62 units

================================================================

Explanation:

Draw out a number line. Mark two points on it at A = -50 and B = 12

The expression |A-B| represents the distance between the two points. So that would be....

|A-B| = |-50-12| = |-62| = 62

Note that negative distance does not make sense. The smallest distance can get is 0. So the result of an absolute value problem is never negative.

-------------------

Slightly alternative method:

If you wanted, you could plot point C on the number like such that C is at 0.

The distance from A = -50 to C = 0 is exactly 50 units

From C = 0 to B = 12 is an additional 12 units

Therefore, the total distance is AC+CB = 50+12 = 62 units

-------------------

Side note: |A-B| is the same as |B-A|. The order of subtraction doesn't matter as long as you use absolute value. If absolute value wasn't there, then A-B is different from B-A.

82 message

Step-by-step explanation:

Lucy send 5 messages Jim send 2 messages.

5 plus 2 equals 7.

75+7=82

Answer:

V = 340.339

Step-by-step explanation:

V = [tex]\frac{\pi r^{2} h }{3}[/tex]

V = [tex]\pi[/tex][tex](5)^{2}[/tex] [tex]\frac{13}{3}[/tex] = 25[tex]\pi[/tex] [tex]\frac{13}{3}[/tex]  = about 340.3392 = 340.339

Answer:

340.17 ft.

Step-by-step explanation:

Using the formula, πr²h ÷ 3 (3.14 × radius × radius × height ÷ 3), we can plug-in the unknown values.

'r' means radius; 'h' means height; 'π' means pi.

The radius is 5; the height is 13.

πr²h (3.14 × radius × radius × height ÷ 3) - π5² × 13 = 340.166666667 (3.14 × 5 × 5 × 13 ÷ 3 = 340.166666667)

340.166666667 ≈ 340.17

Therefore, the area of this circular cone is 340.17 ft.

Answer:

.5, sqrt 14, 4

Step-by-step explanation:

.5, 3.7416, 4

The square root of 9 is 3, so the square root of 11 would be a little greater than 3

The answer would be C. 3.3

Answer:

7800 pores on the back of your hand

Step-by-step explanation:

So, assuming the question is how many pores on the back of your hand...

Multiply the number of pores per square inch by the area of the back of your hand.

(6.5 x 10^2)(.12 x 10^2) = 7800

The number of the pores on the back of your hand will be 7800

The space occupied by any two-dimensional figure in a plane is called the area. The space occupied by the rectangle in a two-dimensional plane is called the area of the rectangle.

So, assuming the question is how many pores on the back of your hand...

Multiply the number of pores per square inch by the area of the back of your hand.

(6.5 x 10²)(.12 x 10²) = 7800

Hence the number of the pores on the back of your hand will be 7800

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The Answer Is X=84

Make an equation for x.

x+40+2/3x=180

x+2/3x=140

Combine like terms.

1 2/3x=140

140/1 2/3 =84

x=84

Answer:

3.54

Step-by-step explanation:

let M be the midpoint of DF

M (x,y): x = (1+4)/2 = 2.5       y = (2 + -1)/2 = 0.5

Median from E intersect DF: EM = √(3 - 2.5)² + (4 - 0,5)²

EM = √0.5² + 3.5² = 3.54

Answer:

4

Step-by-step explanation:

Answer: 7

Step-by-step explanation: because it is 5 spaces over

Answer:

3

Step-by-step explanation:

because two plus two