A student researcher compares the ages of cars owned by students and cars owned by faculty at a local state college. A sample of 59 cars owned by students had an average age of 7.72 years. A sample of 49 cars owned by faculty had an average age of 6.1 years. Assume that the population standard deviation for cars owned by students is 2.73 years, while the population standard deviation for cars owned by faculty is 3.8 years. Determine the 95% confidence interval for the difference between the true mean ages for cars owned by students and faculty. Step 2 of 3 : Calculate the margin of error of a confidence interval for the difference between the two population means. Round your answer to six decimal places.

Answer:

A and F, x=35

Step-by-step explanation:

The correct answers are :

A ) x + y = 57

F) 6x + 2.5ʏ = 265

Answer:

- graphing

- substitution method

- elimination method

Step-by-step explanation:

Answer:

Juan:  42

Diego: 14

Step-by-step explanation:

(d - 10) + (j - 10) = 36

d + j -20 = 36

d + j = 56

j = 3d

d + 3d = 4d = 56

d = 56/4 = 14

j = 3d = 3(14) = 42

Answer:

4.189 cubic inches

Answer:

4.19 in³

Step-by-step explanation:

The formula of volume of sphere

[tex] = \frac{4}{3} \pi {r}^{3} [/tex]

The volume of the sphere

[tex] = \frac{4}{3} \times 3.14 \times {1}^{3} [/tex]

[tex] = \frac{12.56}{3} [/tex]

[tex] = 4.186666667...[/tex]

= 4.19 in³ (rounded to the nearest hundredth)

Answer:

<SRT + <TRV

<VRW + m<WRS

<VRW + m<URS

Step-by-step explanation:

When two straight lines intersect, the adjacent angles formed on a straight line are referred to as linear pairs and they equal 180°.

The linear pairs from the diagram given are:

<SRT + <TRV

<VRW + m<WRS

<VRW + m<URS

All pairs sum up to 180° each.

Answer:

A) 3<x<5

Step-by-step explanation:

Given: |2x-8|<2

Make two inequalities:

First inequality:

2x-8<2

2x<10

x<5

Second inequality:

2x-8>-2

2x>6

x>3

Therefore, your solution is 3<x<5 since the two inequalities pass each other, making an "and" inequality.

Answer: The 3rd one! Letter C.

Step-by-step explanation:

I used a calculator!

Answer:

384 mi2

Step-by-step explanation:

I calculated it!!!!!

8 x 8 = 64

64 x 6 = 384

Hope this helps!!!!! Have a great day!!!!!!

Answer:

1/3

Step-by-step explanation:

7/21 = 1/3

This is because 21 & 7 are both multiples of 7. 7 / 7 = 1. 21 / 7 = 3.

That makes it 1/3.

Hope that helps! :)

Answer:1/3

Step-by-step explanation:to simplify, divide both numerator and denominator by 7

7/7=1 and 21/7=3

9514 1404 393

Answer:

  32 yd²

Step-by-step explanation:

Use the area formula with the given dimensions.

  A = 1/2(b1 +b2)h . . . . . base lengths b1, b2; height h

  A = 1/2(2 +6)8 = 1/2(8)(8) = 32 . . . . square yards

The area of the trapezoid is 32 square yards.

Answer:

Perpendicular

Step-by-step explanation:Because the slopes are negative reciprocals of each other.

Answer: [tex]\left[\begin{array}{ccc}|x|0|1|2|3|4|5|6|\\|P(x)|0|4|8|12|16|20|24|\end{array}\right][/tex]

b. P(x)= 4x

c. The graph would go in a straight line touching each point given.

Step-by-step explanation: To find the perimeter of a square you can use the equation 4(x). If you multiply each x value by 4 you'll get the P(x) values.

Answer:

The answer is B to your question

Answer: b 5 calories per minute

Step-by-step explanation: you can see that the graph starts at 0 and at the one at the bottom it goes to 5 and then 10 for 2 minutes and so on

Answer:

Hey

Step-by-step explanation:

Answer:

Hi how are you

Step-by-step explanation:

I hope you have a wonderful day

The album is called "GUESS WHO"

Answer:

Their comeback is named "GUESS WHO"

Answer:

[tex]176.74 cm^{2}[/tex]

Step-by-step explanation:

[tex]radius=7.5 cm[/tex]

[tex]area=\pi (radius)^{2}[/tex]

[tex]3.142*(7.5)^{2}cm^{2}[/tex]

[tex]176.7375cm[/tex]

[tex]=176.74cm^{2}[/tex]

[tex]----------[/tex]

hope it helps...

have a great day!!

Answer: 7 feet

hope this helps, have an amazing day <3

Answer:

If you help me ill help you

Step-by-step explanation:

Carmen's father is 28 years older than her, 3 years ago we was 5 times her age, what are their ages?

The best centre of measure for this data is the mean which is equal to 10.90 seconds.

Mean, median and mode are use to measure for central tendency. Therefore, let's arrange the values in ascending order.

10.72, 10.75, 10.78, 10.80, 10.80, 10.88, 10.96, 10.99, 11.02, 11.10, 11.10,

According to the data, the values are very close to catch. Therefore, the mean will be used. Therefore,

mean = sum of data / number of data

mean = 10.72 + 10.75 + 10.78 + 10.80 + 10.80 + 10.88 + 10.96 + 10.99, 11.02 + 11.10 + 11.10  / 11

mean = 119.9 / 11

mean = 10.90

learn more on mean here: https://brainly.com/question/12019147

Answer:

60%

Step-by-step explanation:

86.4 divided by 144 is 0.60 which is 60%

Answer:

60%

Step-by-step explanation:

divide 86.4 by 144 which will give you 0.60

Answer:

The answer I got is 3. I attached above my solutions. I hope that helps :))

Answer:

918.60

Step-by-step explanation:

dont mind my handwriting

Answer:

A = 58

B = 60

C = 62

Step-by-step explanation:

A + B + C = 180

A = 58

B = 60

C = 62

58 + 60 + 62 = 180

Step-by-step explanation:

[tex]V = U + at \\ V = 2 + ( - 5 \times 1) \\ V = - 3[/tex]

Answer:

x = 40°

Step-by-step explanation:

In order to answer this problem, you will need to know the definition of an isosceles triangle.

          An Isosceles triangle is specified as a triangle with 2 of its 3 sides having equal lengths.

Step 1: Draw your triangle.

Since 2 of your 3 sides are equal length and the primary angle measures 100°, you are dealing with an obtuse triangle or, properly named, a obtuse isosceles triangle.

Step 2: Label your angles inside of your triangle.

Remember that the sum of the angles inside of a triangle must add up to equal 180°.

Since we know the triangle we are dealing with in this problem, we can label our unknown angles 'x'.

      Caution: The above statement ONLY applies to this type of triangle.

Step 3: Write an equation.

           100° + x° + x° = 180°

Step 4: Solve for x.

           100° + x° + x° = 180°

             100° + 2x° = 180°

                 2x = 80°

                x = 40°

Answer:

2.0 is the correct answer

Step-by-step explanation:

hope it helps you

Answer:Question

Please help?

(I learned this way back so I kind forgot)

1 Which model represents 2(-3)

figure c represents  2(-3)

Answer:

1 Which model represents 2(-3)

figure c represents  2(-3)

Step-by-step explanation:

Answer:

3x^2 +4x+1

Step-by-step explanation:

Hope this helps :)

Answer:

i beleive its 0.5

Step-by-step explanation:

sorry if its wrong

Answer:r<-0.9

Step-by-step explanation:

Answer:

[tex] \huge\mathfrak\pink{S} \huge\mathfrak\purple{o} \huge\mathfrak\blue{l} \huge\mathfrak\red{u} \huge\mathfrak\green{t} \huge\mathfrak\pink{i}\huge\mathfrak\purple{o}\huge\mathfrak\red{n}\huge\mathfrak\orange{➔}\ [/tex]

by using Pythagoras law:

h²=p²+b²

6²=x²+3²

x²=36-9

x=√27 units