A company has offices in two different countries. The 125 employees at location A have a mean commute time of 40 minutes and a standard deviation of 15 minutes. The 250 employees at location B have a mean and standard deviation of 35 and 10 minutes, respectively.
Every month, the company takes separate random samples of 20 employees from each location for a survey. Each time, they look at the difference in the mean commute time sampled from each location

Consider the formula: ...
Why is it not appropriate to use this formula for the standard deviation of ...
Choose
A. The samples are not independent of each other.
B. We cannot assume independence for the employees sampled from location A.
C. We cannot assume independence for the employees sampled from location B.

Answer:

pretty sure it is 4y+2x<_-1

Answer:

C

Step-by-step explanation:

y-2x>-5 : (2,-3) is not a solution to this equation

y> -2x+2 : (2,-3) is not a solution to this equation

4y+2x< -1 : (2,-3) is a solution to this equation

Answer: c=4

Step-by-step explanation:

Answer:

es la  

A

Step-by-step explanation:

Answer:

If the area is 121 cm the answer is 38.99 if its 12 cm then the answer is 12.28

Step-by-step explanation:

Im not sure if correct but i tried

10+ 10 = 20j

20j- 9= 11

The answer is 11 or if in the quiz it is 11j

Hope this helps

Answer:

$36

Step-by-step explanation:

22+14=36

Answer:

No, he not correct because he only ran 4 mi

Step-by-step explanation:

If he walks for 6 min out of the 38 min, then he ran for 32 min.

d = rt        1 mi = 8r

r = 1/8 = 1 mi/8 min   Since he ran 32 min we have

d = 1/8(32) = 4 mi.

No, he not correct because he only ran 4 mi

Step-by-step explanation:

This is a reflection. A reflection is a transformation involving two shapes looking the same by "bouncing it off a line without coming back.( meaning a reflection goes some where else not to it original poistion.)

Others reason why Why?

Line m is perpendicular to Line c.

B and E are equidistant from c that BC=CE.

Why the others are wrong.

While you could rotate this triangle 180 degrees, the transformation occurs about a line not a point. So using a rotation is wrong.

A translation doesnt occur about a line.

A guide reflection doesnt work since the transformations are already mapped correctly if you do the reflection. It doesnt need a translation.

Answer:

true that you pretty but, dont date me bc i have a gf

Step-by-step explanation:

Answer:

true( I'm sowwie if this is wrong):(

Answer:

Its up then to the left power is 13 so (98-=) is the 4

Step-by-step explanation:

It works because if you use the electron theory by leonard jefford then it will be 98-74wis the 4 to the 13

Answer:

Step-by-step explanation:

its c

(6,60)

Answer:

[tex]P(3\ and\ C) = \frac{1}{24}[/tex]

Step-by-step explanation:

Given

Cube and Spinner (See attachment for spinner)

Required

Find P(3 and C)

In the attached spinner, there are 8 partitions and C = 2

So:

[tex]P(C) = \frac{2}{8}[/tex]

[tex]P(C) = \frac{1}{4}[/tex]

In a number cube, there are 6 faces and 1 side is 3.

So:

[tex]P(3) = \frac{1}{6}[/tex]

P(3 and C) is calculated as:

[tex]P(3\ and\ C) = P(3) * P(C)[/tex]

[tex]P(3\ and\ C) = \frac{1}{6} * \frac{1}{4}[/tex]

[tex]P(3\ and\ C) = \frac{1}{24}[/tex]

Answer:

1.27

Step-by-step explanation:

Answer:

25 fudge centres, 20 nut clusters, 18 truffles, 6 of each type of chocolate

Step-by-step explanation:

Michel has a total of $15.00

So, if he only has to buy one type, we just divide the total amount by the price, like this:

[tex]\frac{15.00}{0.60}[/tex] = 25 fudge centres

[tex]\frac{15.00}{0.75}[/tex] = 20 nut clusters

[tex]\frac{15.00}{0.80}[/tex] = 18.75, so we round down = 18 truffles

If he buys the same of number of each type, we know that:

0.60x + 0.75x + 0.80x ≤ $15.00

2.15x ≤ 15.00

x ≤ 6.977...

This means that Michel can only buy 6 of each type of chocolate.

Answer:

If he buys only one type, he can buy 25 fudge centers OR 20 nut clusters OR 18 truffles.

The equations you can write to solve those are:

0.6f = 15

0.75n = 15

0.8t = 15

If he buys an equal number of each then

0.6f + 0.75n + 0.8t = 15

and

f = n = t

He can buy 6 of each without going over his budget.

Answer:

First Space: 49

Second Space: 33

Third Space:-99

Fourth Space: -99

Fifth Space: 10

Sixth Space: -89

Step-by-step explanation:

First Space: for the first space you would do -7 times -7 because it is squared so you would get 49 because a negative and a negative and a negative make a positive.

Second Space: For the second space you have to do 49-16 because you already found the first space and the answer would be 33.

Third Space: For the third space you would do the answer you got from the second space which is 33 and multiply by -3 because -3 is outside the brackets. The answer would be -99.

Fourth Space: You would just put the same thing as the third space and put -99.

Fifth space: To find the fifth space you have to do 4 ÷ 2/5. To find this part you have to do 4 times the reciprocal (when you flip the fraction) and you would get 4 times 5/2. Then you can cross the denominator (bottom of the fraction) and make the 4 a 2 because 4 ÷ 2=2. Next you do 2 times 5 and get 10 as a answer.

Sixth Space: For the final answer you would use the fourth and fifth space. You would do -99+10 which is -89.

Hopefully this helps :)

whats the question then?

Answer:

[tex]\sf\Huge\boxed{C.40}[/tex]

Step-by-step explanation:

Hello There!

Remember: sum of interior angles of a triangle = 180

so to find x we use this equation

180 = 90 + 7x + 5 + 9x + 5 ( the little square in the triangle indicates that the angle is a right angle. right angles have a measure of 90 so that's where the 90 came from.)

now we solve for x

step 1 combine like terms

90 + 5 + 5 = 100

7x + 9x = 16x

now we have 180 = 16x + 100

step 2 subtract 100 from each side

180 - 100 = 80

100 - 100 cancels out

now we have 80 = 16x

step 3 divide each side by 16

80/16 = 5

16x/16=x

we're left with x = 5

Finally we plug in 5 into x for angle a

7(5)+5

7*5=35

35+5=40

so we can conclude that the measure of angle A is 40 degrees

Step-by-step explanation:

48{x}^{2} {y}^{2} {z}^{2}

Answer:

[tex]48x^2y^2z^2[/tex]

Step-by-step explanation:

[tex]2 \times 3x \times y \times 4z \times 2x \times y \times z[/tex]

[tex]=> 2 \times (3x \times 2x) \times (y \times y) \times (4z \times z)[/tex]

[tex]=> 2 \times 6x^2 \times y^2 \times 4z^2[/tex]

[tex]=> 48x^2y^2z^2[/tex]

Answer:0.65$

Step-by-step explanation:

If there was no discount, the yogurt would be 1.65$

Answer:

Step-by-step explanation:

m∠4=48°  

m<1 = m∠4=48°  

m<2 = 180 - 44 = 132

m<3 = m<2 = 132

m<5 = m∠4=48°  

Answer:

1) 10

2) 22

3) 28

4) 17.5

5) 22

6) 13.5

7) 19.5

8) 11

9) 7.5

Answer: -2x²+2x+3

Step-by-step explanation:

Factoring -2x2+2x+3

The first term is, -2x2 its coefficient is -2 .

The middle term is, +2x its coefficient is 2 .

The last term, "the constant", is +3

Step-1 : Multiply the coefficient of the first term by the constant -2 • 3 = -6

Step-2 : Find two factors of -6 whose sum equals the coefficient of the middle term, which is 2 .

-6 + 1 = -5

-3 + 2 = -1

-2 + 3 = 1

-1 + 6 = 5

Observation : No two such factors can be found !!

Conclusion : Trinomial can not be factored

Answer:

can u help me on my question please pleasee

Answer:

1. -72

2. -66

Step-by-step explanation:

Hope this helps you       :)

When you draw the shape out you dont get a triangle

Answer:

answer is 530.66 hope this helps!

13×13=169

169×3.14=530.66

Answer:

I don't know if this is the answer but I got 530.66

Step-by-step explanation: the formula is A=pi r squared

you multiply 13 twice because in the formula you have to square the radius then you have to multiply what you get in this case 169 then you multiply it by pi which is 3.14 by 169 and you get 530.66 hopefully it is right let me know and if so brainliest please:)