Use the t-distribution to find a confidence interval for a difference in means μ1−μ2 given the relevant sample results. Give the best estimate for μ1−μ2, the margin of error, and the confidence interval. Assume the results come from random samples from populations that are approximately normally distributed.

A 99% confidence interval for μ1−μ2 using the sample results x⎯⎯1=535, s1=103, n1=380 and x⎯⎯2=465, s2=86, n2=200

Enter the exact answer for the best estimate and round your answers for the margin of error and the confidence interval to two decimal places.

Answer: range is 6

Step-by-step explanation:

Smallest number is 2

largest number is 8

8-2=6

Answer:

Those are the same measurment!

Step-by-step explanation:

Conversion:

Conversion is 1cm=10mm

The sum of the external side of a figure is its perimeter.  the perimeter of the larger flag is 48

Shapes are known to be similar if the ratioof their similar sides is equal to a constant.

From the given diagram, find the scale factor of the large triangle

k = 12/4

k = 3

Determine the perimeter of the large flag

Perimeter = 3 * perimeter of small flag

Perimeter of large flag = 3 * 16 = 48

Hence the perimeter of the larger flag is 48

Learn more on similar shapes here: https://brainly.com/question/2644832

#SPJ1

Answer:$0

Step-by-step explanation:

Answer:

96

Step-by-step explanation:

4 times 24 is 96

Answer: A????????????

Step-by-step explanation:

you need to show the following

Answer:

Solution: The radius of the circle is 7 inches and the angle is 60°. So, let us use the area of sector formula. The area of sector = (θ/360°) × π r2 = (60°/360°) × (22/7) × 72 = 77/3 = 25.67 square units.

Step-by-step explanation:

yan po ang sagot.

Answer:

The answer would be x = -1 and y = 3

Step-by-step explanation:

Work is as shown:

1) -8x - y = 5

   y = x + 4

2) -8x - (x+4) = 5

3) -8x -x = 9

4) -9x/-9 = 9/-9

5) y = -1 + 4 = 3

If there are any questions or if i didn't answer the question reply with the question please.

Answer:

375, 1875,

Step-by-step explanation:

hope this helps :)

Answer:

i just want to try this but i think its y<2.1

Step-by-step explanation:

Answer:

The answer is A

Step-by-step explanation:

its a multiple answer choice. so A , D

Answer:

30

Step-by-step explanation:

what number does 7 multiply by that also can be multiplied by 5? 30 is the least common denominator between 7 and 5.

[tex]\left( 8^{\frac{2}{3}} \right)^{\frac{1}{2}}\implies \left( (2^3)^{\frac{2}{3}} \right)^{\frac{1}{2}}\implies 2^{3\cdot \frac{2}{3}\cdot \frac{1}{2}}\implies 2^{\frac{1}{1}}\implies 2[/tex]

Answer:

300 ft for 4 seconds and 10 feet for 10 seconds

Step-by-step explanation:

Answer:

gravity is the force that helps u stay on the earth

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

[tex]\blue\textsf{\textbf{\underline{\underline{Question:-}}}}[/tex]

Given that x varies inversely with y, x=6 when y=-4, find y when x=8.

[tex]\blue\textsf{\textbf{\underline{\underline{Answer and How to Solve:-}}}}[/tex]

If x varies inversely with y, we divide.

So the formula looks as follows:-

[tex]\bold{x=\displaystyle\frac{k}{y} }[/tex]

where k = constant of proportionality

Plug in the values:-

[tex]\bold{6=\displaystyle\frac{k}{-4}}[/tex]

Multiply both sides by -4:-

[tex]\bold{-24=k}[/tex]

Now find y when x=8:-

[tex]\bold{8=\displaystyle\frac{-24}{y}}[/tex]

Multiply both sides by y:-

[tex]\bold{8y=-24}[/tex]

Divide by 8 on both sides:-

[tex]\dashrightarrow\bigstar{\boxed{\boxed{\underline{\bold{y=-3}}}}\dashleftarrow[/tex]

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

Answer:

This equation has no solution

Step-by-step explanation:

if the same equation equals 2 different numbers then therefore there is no solution.

Answer:21x^2+14x over 2

Step-by-step explanation:

Answer: 0.44 qtr

Step-by-step explanation:

10 centimeters to quarters = 0.44 qtr

Step-by-step explanation:

Rectangle area= 40×30= 1200cm²

Triangle area= 20×20= 400cm²

Total are of composite figure= 1200+400=1600cm²

Answer:

B.

Step-by-step explanation:

1) if s-slope and i-interception of the equation y=sx+i, then

2) the required equation is

[tex]y=\frac{1}{4}x -5.[/tex]

3) correct answer is B.

Answer:

[tex](x + 3)^2 + (y - 5)^2 = 5^2[/tex]

Step-by-step explanation:

Well, the center origin of the circle is given (h,k) =  (-3,5).

Point on the circle is (x,y) = (1,8)

We have to find our radius as they gave us a point. from origin to the edge of the circle.

Using the formula: (x - h)^2 + (y - k)^2 = r^2

Plug in our (h,k) = (-3,5) and (x,y) =  (1,8) to solve for radius.

(x - h)^2 + (y - k)^2 = r^2

(1 - (-3))^2 + (8 - (5))^2 = r^2

(4)^2 + (3)^2 = r^2

16 + 9 = r^2

r^2 = 25

r = 5

Answer:

g(x) = (x + 31)

f(x)= 3x-9

3×x-9= -9+3×x

=-6x

g(x)=(x+31)

1×x+31=32+1×x

=32x

h(x)=2x-16

2×x-16= 16+2×x

=18x

j(x)= -5(x-2)2

(-5x+10)2

-10x+20= 10×x+20

=20-10×x

=10x

Answer:

x = 5/2 or x = 6

Step-by-step explanation:

(2x)(2x)=(x+10)(2x-3)

4x^2 = 2x^2 - 3x + 20x - 30

2x^2 - 17x + 30 = 0

(2x - 5)(x - 6) = 0

x = 5/2 or x = 6

Step-by-step explanation:

here is your answer, this is how you do it

Answer:

[tex]\boxed{\bf G. \: x = {25}^{o}} [/tex]

[tex]\boxed{\bf H. \: x = {20}^{o} }[/tex]

Step-by-step explanation:

In the given figure, the linear pairs are supplementary angles, meaning they should add up to 180°.

G)

H)

«••••••••••••»«•••••••••••••»

Answer:  CD segment

Step-by-step explanation:  

Answer:

Step-by-step e6/8 or in simple terms, 3/4

Step-by-step explanation:

Answer:

3/4

Step-by-step explanation:

1/2 is just 2/4

2/4+1/4 = 3/4

=)

Answer:

$356.44

Step-by-step explanation:

Answer:

129 cubic inches

Step-by-step explanation:

lxwxh L=Length W=Width H= Height

Length times width times height gives you the volume

1. convert all numbers to inches

2. Multiply them together(order does not matter)