I don't understand the estimate

Answer:

139

Step-by-step explanation:

Just took the quiz on K-12

Hope its not to late

The prediction for the number of passwords in which the first character is a number is 139. Therefore, option B is the correct answer.

Probability can be defined as the ratio of the number of favourable outcomes to the total number of outcomes of an event.

We know that, probability of an event = Number of favourable outcomes/Total number of outcomes.

The answer is 192 passwords. This is because there is an equal probability of each character (0-9 and uppercase letters) being chosen as the first character of a password.

Since there are 10 different numbers (0-9) and 26 uppercase letters, the probability of the first character being a number is 10/36

If 500 passwords are generated, the expected number of passwords in which the first character is a number is 500 ×10/36

= 5000/36

= 138.88

≈ 139

Therefore, option B is the correct answer.

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Answer:

Heya!!

Dona paints ornaments for a school play. Each ornament is as show n and is made up of two identical cones. She uses one bottle of paint to paint 243 cm². How many bottles of paint does she need in order to paint 60 ornaments? Use 3.14 for π.

Answer:

5/6

Step-by-step explanation:

Find the individual square root of the numerator and denominator which is 5 and 6=5/6

The simplified radical of (√25/36) is 5/6.

The term "radical" is used to represent the square root or nth roots. Expression with a square root is referred to as a radical expression. Radicand: A value or phrase included within the radical symbol.

We have,

Expression: (√25/36).

Now, factorizing the numerator and denominator separately

25 = 5 x 5

36 = 6 x 6

So, (√25/36)

= (√(5x 5)/(6 x 6))

= 5/6

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Answer:

the answer should 1,200 feet^2 or 100 because you multiply the base times the height making the results or the answer to be 1,200 so hopefully that is the correct answer.

Step-by-step explanation: Mark me brainliest please if you want and hopefully that is the correct answer.

Answer: your answer is 14400in^2

Step-by-step explanation:

Answer:

B.

Step-by-step explanation:

C= 20 degrees Celsius

20 x 9/5 = 180/5

180 divided by 5 = 36 degrees celsius

Then you do 36 degrees celsius + 32 and you get 68.

So therefore 20 degrees celsius is eqivalent to 68 degrees Fahrenheit.

Answer:

The correct answer is option D

Step-by-step explanation:

In option A: angle1 + angle2 + angle3 is not equal to 90°

In option B: angle1 + angle2 + angle3 = 180 but it is easier to find angle1 with option D

In option C: angle1 - angle2 is not equal to angle3

In option D: angle1 + angle2= angle3 [by using exterior angle property]

I hope you understood my answer well :)

Answer:

50.653

Step-by-step explanation:

3.7*3.7*3.7, or 3.7^3 would equal 50.653 but you can round it to 50.63

Answer:

    ~50.653~

Step-by-step explanation:

3.7 x 3 =50.653  

Answer:

108inches^2

Step-by-step explanation

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

Divide the hexagon in identical triangles.

Triangle area = length × width / 2

6 × 6 = 36

36/2= 18

The area of a regular hexagon is 85.28 square inches.

Given that, Lin and Andre used different methods to find the area of a regular hexagon with 6-inch sides.

We need to find the area of a hexagon using both methods.

The formula for the area of a regular hexagon is (3√3 s²)/2, where 's' is the length of the side of the hexagon. Since we are talking about a regular hexagon, it should be noted that all sides are of equal length. When one side of the regular hexagon is known, the area can be calculated with the formula, Area of the hexagon = (3√3 s²)/2, where 's' is the length of the side of the hexagon.

We know that, the area of an equilateral triangle=√3/2 × a².

So, the area of an equilateral triangle= √3/2 × 6²

=18√3 square inches

Now, the area of a hexagon=6×18√3

=108√3=187.06 square inches

Area of the rectangle = length × width = 10.4 × 6 = 62.4 square inches

Area of a triangle= 1/2 × Base × Height = 1/2 × 10.4 × 2.2 = 11.44 square inches

Now, 11.44 × 2=22.88

Area of a regular hexagon =  62.4+22.88 =85.28 square inches

Therefore, the area of a regular hexagon is 85.28 square inches.

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Your question is incomplete, probably the complete question/missing part is:

Lin and Andre used different methods to find the area of a regular hexagon with 6-inches sides. Lin decomposed the hexagon into six identical, equilateral triangles. Andre decomposed the hexagon into a rectangle and two triangles. Lin's method Andre's method Find the area of the hexagon using each person's method. Show your reasoning.

1845-1846

118->148

148-118 = 30 = change

percent

30/118 ≈ 25.4%

1846-1847

148->139

148-139 = 9 = change

percent

9/148 ≈ 6%

1847-1848

139->151

151-139 = 12 = change

percent

12/139 ≈ 8.6%

Hope this helped :)

C x less than or equal to 2

i hope it's help:)

Answer:

(x, 3) --> you can put any number for x

Step-by-step explanation:

Answer:

the theme in that is identity growth and development

Answer:

C. Median

Step-by-step explanation:

If both sides are symmetrical, then there is no need to try and find the mean or anything because you already have the middle point and no outliers. If there were outliers it'd be different, unless the outliers were symmetrical with the rest of it, then the median would still be a good option.

Answer:

Decrease Median and Mean

Step-by-step explanation:

The mean and median will both be decreased because you are removing the largest number value from the number line, logically it must decrease.

Answer:

Before Suzanne left:

Mean = 53,333

Median = 45,000

After Suzanne left:

Mean = $44,000

Median =  $44,000

Step-by-step explanation:

Since the larger number was taken away the mean and median decreased after she left. The 100,000 is an outlier which basically holds up the mean and median salary.

Answer:

Step-by-step explanation:

To calculate mean, you have to first add up all the numbers and divide by the amount of numbers there are in the list

Answer:[-8]>[-3.5]

Step-by-step explanation:

either [-8] is the opposite or it is asking whole value. either way [-8] is bigger

Answer:

if it is odd then multiply it by 3 and add 1, and if it is even, divide it by 2. Then repeat this process as long as you can.

Step-by-step explanation:

hope dis helped:)

Answer:

B, 3/4

Step-by-step explanation:

you can divide the top and bottom by 6

6 * 3 = 18

6 * 4 = 24

so it applies the same for dividing

18/6 = 3

24/6 = 4

If you have trouble dividing by larger numbers, try dividing by two if both the numerator and denominator are even numbers (in this case they are)

Your answer is 3/4

hope this helps :)

Answer:

420

Step-by-step explanation:

find the area of the triangle at the top first

b*h/2

10.5*10/2 = 52.5

then times the area by the depth

52.5*8= 420mm[tex]^{3}[/tex]

Answer:

The answer is 840

Step-bystep explanation:

you first have to muliply 10 and 10.5 them multiply the number you got by 8

Answer:

1/16 chance

Step-by-step explanation:

In a scenario with 4 situations that each have two options, to find how many total combinations of answers there are you would set the number of questions as the base and the number of options as the power, like this: [tex]4^2=16[/tex]

All 16 possibilities of combinations are listed in the question. Since we do not know which option is the correct one, there is a 1/16 chance that the student will get all four questions right, as that is a single combination out of 16.

Hope this helps! :)

Answer:

the answer is just simple you just multiply 16 times 8 times 4 making the results to be 512 so choice c 512 cm^3 is the correct answer.

Step-by-step explanation:

Answer: D: 10.9

Step-by-step explanation:

Hope this helps you out!

Answer:

No

Step-by-step explanation:

A rhombus is a 4 sided shape and also known as a quadrilateral.

A triangle will always be 3 sides so it is impossible for a triangle to ever be a rhombus.

Hope this helped and brainliest please

Answer:

2. 0.38

3. 8/21

4. 8:21

Step-by-step explanation:

there all the same questions but in different form hope i helped pls give Brainliest if i am right

Answer: 8

Step-by-step explanation:

The formula for the volume of a cone is V=Bh or V=πr2h

Answer:

16.75

Step-by-step explanation:

V=πr2h

3

3.14*2^2 4/3