How do I solve this problem?

Answer:

A: Randomly select 10 freshmen from each of the majors at the university.

Step-by-step explanation:

This is because stratified random sampling is taking a population and dividing them into subpopulations. So, majors would be the best way to divide up college freshmen into different subsections to survey them about their workloads because each major would have a different answer and result.

The techniques to give a stratified random sample would be A: Randomly select 10 freshmen from each of the majors at the university.

If the sampling is done from the population randomly, without any other rule, then such sampling is called simple random sampling. Items are selected in a fixed size, all randomly.

The best sampling is simple random sampling, as it is randomly picking data values from the population.

Stratified random sampling it is taking a population and dividing them into subpopulations.

The majors would be the best way to divide up college freshmen into different subsections to survey them about their workloads because each major would have a different result.

The techniques to give a stratified random sample would be A: Randomly select 10 freshmen from each of the majors at the university.

Learn more about sampling here:

https://brainly.com/question/9724150

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Answer: A

Step-by-step explanation:

Using the 3D Pythagorean theorem, [tex]AB=\sqrt(6^2 + 4^2 + 1^2)=\sqrt(53)[/tex]

First, let's find the area of the rectangle.We know that the area of a rectangle is the length times width, or  20⋅32in this example:20⋅32=640So the area of the rectangle is  640ft2.You may not know the area of a semicircle, but that's fine  −we know the area of a circle, or  πr2.Since the area of a semicircle is half the area of a circle, we just do the area of the circle divided by  2:So the area of a semicircle is  πr22.The question asks for  πto just be  3.14, so instead the equation is  A=3.14r22The picture gives the diameter of the circle.To find the radius, or  r, we divide the diameter by  2:202=10Now we can solve for the area of the semicircle:3.14(10)223.14(100)23142157ft2Now that we now the areas of the rectangle and semicircle, we can add them up to find the area of the rose garden:640+157=797ft2

Answer:

4

Step-by-step explanation:

{sec(θ) - tan(θ) = 1/4, sec(θ) + tan(θ)} = tan(θ) + sec(θ) = 4

use subsitution

Answer:

x=56

Step-by-step explanation:

Hope this helps!

Answer:

x = 12.05

using sine rule:

[tex]\boxed{sin(a) = \frac{opposite}{hypotenuse} }[/tex]

Here given the angle is 35° and hypotenuse is 21.

To find x:

→ sin(35) = [tex]\frac{x}{21}[/tex]

→ x = 21 * sin(35)

→ x = 12.04510516

→ x = 12.05 ................rounded to nearest tenth.

Answer:

[tex]m = \frac{y2 - y1}{x2 - x1} \\ \frac{8 - 4}{6 - 2} \\ = \frac{4}{4} \\ m = 1[/tex]

Answer:

if you mean find the coordinates "of" the midpoint then the solution is

Step-by-step explanation:

(x1+x2)/2 and (y1+y2)/2

so

(2+6)/2=8/2=4 and (4+8)/2=12/2=6

so the coordinates of the midpoint of the given segment is

(4,6)

[tex]\bold{\huge{\underline{ Solutions }}}[/tex]

We have,

We know that,

[tex]\bold{\red{ d = }}{\bold{\red{\sqrt{2}}}}{\bold{\red{ a }}}[/tex]

Subsitute the required values in the above formula :-

[tex]\sf{ 20 = }{\sf{\sqrt{2}}}{\sf{ a }}[/tex]

Squaring on both the sides :-

[tex]\sf{ 400 = 2a^{2}}[/tex]

[tex]\sf{\dfrac{400}{2}}{\sf{ = a^{2}}}[/tex]

[tex]\sf{ 200 = a^{2}}[/tex]

[tex]\bold{ a = 14.14 cm }[/tex]

Hence, The side of the square is 14.14 cm

Here, we have to prove that,

We know that,

Area of square

[tex]\bold{\pink{ = side}}{\bold{\pink{\times{ side}}}}[/tex]

Subsitute the required values,

[tex]\sf{ = 14.14 }{\sf{\times{ 14.14}}}[/tex]

[tex]\bold{ = 200 cm^{2}}[/tex]

Hence, It is proved that the area of the square is 200 cm².

Answer:

sure I will

Step-by-step explanation:

please give brainiest

Answer:

where is your pic can you post

Step-by-step explanation:

We are given that ∠ABC≅∠DEC and ∠GFE≅∠DCE

By Vertical Angles: ∠DEC≅∠GEF and ∠DCE≅∠ACB

By Substitution: ∠ABC≅∠GEF and ∠GFE≅∠ACB

By Angle-Angle Similarity: ΔABC~ΔGEF

Hope this helps! Sorry if I didn't explain well :(

Answer:

[tex]5\sqrt{185}t[/tex]

Step-by-step explanation:

after time t (hr), the distance between A and starting point is 40t

the distance between B and starting point is 55t

These two distances are perpendicular to each other, so

the distance between A and B is

[tex]\sqrt{(40t)^2+(55t)^2}=\sqrt{4625t^2}=5\sqrt{185}t[/tex]

We have that the population standard deviation and  confidence interval is mathematically given as

SD=1

W = 2.8284

a) Generally, normal distribution 95% of the values lies within 2 standard deviations from the mean.

Therefore, we have here:

2*2SD = 51 - 47

2*2SD

SD=1

Hence, the standard deviation is

SD=1

b)

Where,the margin of error is inversely proportional to the square root of sample size.

1 / sqrt{2}

Hence, the new width is

1 / sqrt{2}[tex]1 \ sqrt{2}[/tex]

W = 2.8284

For more information on Width visit

https://brainly.com/question/2096451

Answer:

ca and diameter

Step-by-step explanation:

Answer:

In the image

Hope this helps!

Step-by-step explanation:

1. AC

2. the diameter

Answer:

the measure of the external angle which is marked by yellow is 156 degrees

there would only be one committee of eight, because there is only 15 boys if you add it up 7 + 8= 15 you do not have enough boys to form more than one committee there will be seven boys left out three of which are perfect

Answer:

y ≥ - 0.8

Step-by-step explanation:

[tex]\sqrt{25y^2 +40y+16}[/tex] = 5y + 4

[tex]\sqrt{(5y+4)^2}[/tex] = 5y + 4

5y + 4 = 5y + 4 and 5y + 4 ≥ 0 ⇒ y ≥ - 0.8

y ∈ [ - 0.8 , ∞ )

- ( 5y + 4 ) = 5y + 4

10y = - 8

y = - 0.8

The answer is y ≥ - 0.8

Answer:

the first one is  x=20. the second one is x=31.33 cm.

Step-by-step explanation:

1. x=20

2. x=31.33 cm

Hope this helps!!! :)

Answer:

  -27 -6z

Step-by-step explanation:

"Simplify" in this context means "eliminate parentheses." You do that by making use of the distributive property. The factor -3 outside the parentheses multiplies each term inside parentheses.

  -3(9 +2z)

  = -3(9) +(-3)(2z)

  = -27 -6z

Hey there!

-3(9 + 2z)

= -3(9) - 3(2z)

= -27 - 6z

= -6z - 27

Therefore, your answer is: -6z - 27

Good luck on your assignment & enjoy your day!

~Amphitrite1040:)

Answer:

x = 6

y = 7

z = 23

Step-by-step explanation:

ÀC = z + 7

30 = z + 7

30 - 7 = z

z = 23

2x - 3 = 5x - 21

21 - 3 = 5x -2x

18 = 3x

x = 18÷3

x = 6

4x + 1 = 3y + 4

4(6) + 1 = 3y + 4

25 = 3y + 4

3y = 25 - 4

y = 21 ÷ 3

y = 7

please mark as brainliest i appreciate so much

x^3 + y^3 + z^3

Cannot be fully factored because it is already in it's most simplistic form.

But, I can halfway factor it, which is

(x+y+z)^3 - 3( yx^2 + zx^2 + xz^2 + yz^2 + xy^2 + zy^2 + 2xyz )

Answer:

30

Step-by-step explanation:

Because of the following statement is not true no.of atoms

Answer:

48

Step-by-step explanation:

4+1=5

60÷5=12

12×4=48

Answer:

16x

Step-by-step explanation:

just sum all of it friend π - π

the awnser is 16x duh that's easy how do u not know

Answer:

angle xdq= 90-49= 41

angle uxd= 180-41= 139

Step-by-step explanation:

A right angle equals 90 degrees.

90-49 = angle xdq = 41 degrees

49 + 90 + x = 180

angle x = 41

180-41 = angl uxd = 139

Answer:

Step-by-step explanation:

[tex] \tt\huge Answer \to[/tex]

Answer:

for cd it's 12 I believe fs

Answer:

Step-by-step explanation:                            

Multiplying both sides of this equation by 2 eliminates the fraction:

                 2v = lbh

and dividing both sides by lb isolates (solves for) h:

                            2v

                   h = ---------

                             lb

Answer:

28.317 litres

62.8 litres

Answer:

Step-by-step explanation:

equation is:

8.2x=0.2x+0.4

if x is time

8.2x-0.2x=0.4

8x=0.4

x=0.05 hours from when Karen starts and 0.45 hours fromt the time tevin started.