question 1. Compare the y-intercepts and the rates of change of the following items.

question 2. image 2

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

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

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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:)

[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:

for cd it's 12 I believe fs

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:

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:

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#SPJ2

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)

Answer:

Step-by-step explanation:

Answer:

28.317 litres

62.8 litres

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

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

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:

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

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

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

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.

Answer:

sure I will

Step-by-step explanation:

please give brainiest

Answer:

where is your pic can you post

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:

15

Step-by-step explanation:

15

1 5/8 divided 1/3

first change 1 5/8 into a improper fraction which is 40/8

40/8 divided by 1/3
Keep Change Flip
40/8 divided by 3/1
40/8 x 3/1 = 120/8 simplify by 4 then you get 30/2 simplify again and you get 15/1 which is 15
i hope this is right

Answer:

4 and 7/8 (or as a decimal: 4.875)

Step-by-step explanation:

(Important:) Okay, so before we solve this problem we need to know the "dividing fraction rules." When you are dividing fractions, you need to remember that the second fraction is flipped and the sign goes from being a division symbol to being a multiplication symbol. It may sound confusing, but I'll explain as we go on.

First, let's turn that 1 and 5/8 into an improper fraction so that this is easier to solve. Multiply the denominator by the whole number, then add the numerator. Keep the same denominator (8 in 1 and 5/8), but place your new numerator on top instead.

1 and 5/8 = 13/8.

Now we can go through the steps of the dividing process. Flip the second fraction in the equation. Doing this changes the symbol to a multiplication symbol.

13  x  3

8  x   1

Now multiply across.

13 x 3 = 39

8 x  1 =  8

This question does not ask for an improper fraction, so let's reduce this fraction down to a mixed number and decimal.

Mixed number: 39/8 = 4 and 7/8.

Decimal: 4.875.

I hope that this helps.

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:

4

Step-by-step explanation:

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

use subsitution

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:

a = 1

b = 5

⇒ f(x) = x + 5

Step-by-step explanation:

Given

Therefore,

f(1) = 6    ⇒   a + b = 6

f(-2) = 3   ⇒   -2a + b = 3

Rewrite a + b = 6 to make a the subject, substitute into  -2a + b = 3  and solve for b:

a = 6 - b

⇒ -2(6 - b) + b = 3

⇒ -12 + 2b + b = 3

⇒ -12 + 3b = 3

⇒  3b = 15

⇒  b = 5

Substitute found value for b into  a + b = 6  and solve for a:

⇒ a + 5 = 6

⇒ a = 1

Therefore, f(x) = x + 5