Which of the following is an advantage of using stratified random sampling?
A-Stratified random sampling saves time and money.
B-Stratified random sampling requires knowledge of the entire population.
C-Stratified random sampling can be used even when there is not a list of the population
D-Stratified random sampling provides more precise estimates than simple random sampling.

Answer:

The kite is about 44.1 feet high.

Step-by-step explanation

Since you are trying to find the height, you would draw a triangle to diagram which sides you need to use. The 123 ft of string would be the hypotenuse of the triangle while the 21 degrees is the theta. You are trying to find the height and from the theta that would be the opposite side so you would use sine because you are using opposite and hypotenuse.

sin21=x/123

You have sin of 21 because that is the angle measure, then opposite over hypotenuse which is x/123.

You then multiply both sides by 123 to get the variable of x alone on one side.

123sin21=x

Then just plug this into your calculator and round to the nearest tenth and you get 44.1 feet.

Hope this helped explain how to do these problems, I had trouble doing them awhile back in Algebra 2 so hope this helped out a little.

Yes the Frist question is 15 students

the second question is 5 well I mean if you do it by Khan academy

the third one is well three dozen eggs are cracked, so probably 12?

Answer:

12 days

Step-by-step explanation:

Trust me I did the work.

Answer:

0.25

Step-by-step explanation:

You have 4 options:

1/4: red

1/4: blue

1/4: green

1/4: yellow

Combined equals a whole, so each one of them equals 0.25

Answer:

3v=70

divide both side by 3

=70/3 or ~23.33333

angles sum: 180(6-2) = 720

50 + 37 + 42 = 129

129 + 5x + 7x - 1 + 3x + 40 = 720

15x + 168 = 720

15x = 552

x = 36.8

check:

129 + 5(36.8) + (3(36.8) + 40) + (7(36.8) - 1) = 720

Correct answer??

180-50 = 130

180-37 = 143

180-42 = 138

Known internal angles:

130 + 143 + 138 = 411

15x + 39 + 411 = 720

15x = 270

x = 18

Answer:

159.68

Step-by-step explanation:

68% of 499 is 339.32

499 -339.32=159.68

hope this helps

Answer:

b is 9

Step-by-step explanation:

okay

please mark me as brainlist and be happy also add me on sñap

arshad2623f

i will be happy <3

Answer:

its 9 this has to be at least 20 characters

Answer:

O G(x) = 0.025x3 - 1.50x? + 18.31x + 654.01

Step-by-step explanation:

Answer:

14

Step-by-step explanation:

4(2+5) / 2

4(7) / 2

28 / 2

14

Answer:

Axis of symmetry: [tex]-\frac{3}{7}[/tex]

The y-intercept: y= (0, -8)

The vertex is: [tex]( -\frac{3}{7} , -\frac{65}{7} )[/tex]

Step-by-step explanation:

My work is shown in the images... :)

I hope I helped, and I always appreciate brainliest!!!  :)

Answer:

same, equal measure

Hope it helps

Please mark me as brainliest

Thank you

Answer:

All i have is the area which is 4.5·π cm² + 18 cm² =

Step-by-step explanation:

Answer:

What is the perimeter

Answer:

The scale factor is 1/2

Step-by-step explanation:

If the larger one is the original and one angle is 6 but then it gets dilated to 3. It would be 1/2 because 3 is a half of 6.

Answer:

[tex]x^{15/3} =x^{5}[/tex]

Step-by-step explanation:

Answer:

=x⁵

Step-by-step explanation:

It is a rule of indices that [tex]{x^{\frac{a}{b} } }=\sqrt[b]{x^{a} }[/tex]

Therefore:

[tex]\sqrt[3]{x^{15} }[/tex]

= [tex]x^{\frac{15}{3} }[/tex]

=x⁵

Answer:

First one

Step-by-step explanation:

.20 is 20% of 100 and there is 5 boxes and 5 times 20 = 100

Answer:

[tex]tan(30) = \frac{A}{B}[/tex]

Step-by-step explanation:

Given

The attached triangle

Required

Find tan(30)

Let the side opposite 30 degrees be A and the side adjacent 30 degrees be B

So [using tangent identity]:

[tex]tan(\theta) = \frac{Opposite}{Adjacent}[/tex]

This gives:

[tex]tan(30) = \frac{A}{B}[/tex]

Answer:

4

Step-by-step explanation:

because the variable is h and the constant is 3

#3 maybe be wrong, sorry if it is

Answer:

7) C) 7

8) D) y=-2x+3

Step-by-step explanation:

7) 3x-1/9(27)=18

3x-3=18

3x=21

x=7

8) y=-2x+3

Answer:

6%

Step-by-step explanation:

6/100

3/50

0.06

6%

Answer:Its B

Step-by-step explanation:

stream·er

/ˈstrēmər/

Learn to pronounce

See definitions in:

All

Journalism

Fishing

Angling

Astronomy

noun

a long, narrow strip of material used as a decoration or symbol.

"plastic party streamers"

Similar:

pennant

pennon

flag

banderole

banner

standard

ensign

gonfalon

burgee

ribbon

vexillum

a banner headline in a newspaper.

"his appearance was announced with a streamer headline"

FISHING

a fly with feathers attached.

"a streamer fly"

Answer:

yes

Step-by-step explanation:

if we figure out the difference between the two numbers by subtracting one from the other, if the product comes out positive, then the number you subtracted from is greater, if the product comes up negative, then the number you subtracted from is lesser

say we did 3.13 as our first number

3.13 - 3.12 = 0.01

this means that 3.13 is greater by 0.01, if we switch the two numbers however...

3.12 - 3.13 = -0.01

then that means that 3.12 is lesser by 0.01

i hope this makes sence, working with decimals may get tricky sometimes lol

Yes, 3.13 is greater than 3.12.

A decimal number is a number in which whole number part is separated from a decimal.

We have been given two numbers 3.13 and 3.12 and we have to find the greater number from these two numbers. When two numbers are in decimal then firstly we have to see the digit before the decimal, the number having large digit becomes large. If the digit before decimal is same in both numbers then we have to see whether the first digit after the decimal is greater or not. If this digit is also same then we will move towards left and so on.

In the numbers 3.12 and 3.13, 3 which is second digit after decimal is greater than 2. So 3.13 is greater than 3.12.

Hence 3.13 is greater than 3.12.

Learn more about decimals at https://brainly.com/question/703656

#SPJ2

Answer:

rotation ,then reflection

Answer: The correct answer is D.