HEEEEEELPPPPPPPPP!!!!!!!!!!!!!

Answer:

Yes, that is enough statistical evidence to suggest to conclude that residents of Legacy Ranch use less water on average

Step-by-step explanation:

The data given by the American Water Works Association are;

The per capita water use in a single-family home, μ = 76 gallons per day

The number of responders in the sample, n = 27

The sample mean water used by the sample, [tex]\overline x[/tex] = 71 gallons

The standard deviation, s = 9.5 gallons per day

The level of significance, α = 0.01

The test statistics is given as follows;

The null hypothesis, H₀; μ ≥ 76 gallons

The alternative hypothesis, Hₐ; μ < 76 gallons

[tex]t=\dfrac{\bar{x}-\mu }{\dfrac{s}{\sqrt{n}}}[/tex]

Therefore, we have;

[tex]t=\dfrac{71-76 }{\dfrac{9.5}{\sqrt{27}}} \approx -2.734817[/tex]

At n - 1 = 27 - 1 = 26 degrees of freedom, the critical-t = 2.5

From the test statistic, of t ≈ -2.734817, the p-value < 0.01, and from a graphing calculator, the p-value is given as Prob = 0.005544418

Therefore, given that the p-value is less the significant level, and less than 0.01, is therefore statistically significant, and therefore, there is sufficient statistical evidence against the null hypothesis, therefore we reject the null hypothesis, and there is enough statistical evidence to suggest to conclude that residents of Legacy Ranch use less water on average.

9514 1404 393

Answer:

Step-by-step explanation:

The square root is only defined for arguments that are greater than or equal to zero.

  √x . . . . defined for x ≥ 0

It will only have non-negative values.

  √x . . . . has values ≥ 0

Using these facts, we can answer the questions.

__

1. The domain is the set of values x may have. The square root function limits the domain to x ≥ 0.

__

2. The range is the set of values y may have. The square root function is never negative, so the range must be 2 or greater.

  y ≥ 2

Answer:

Step-by-step explanation:

it's like this Loving ,    62.90 / 330 = 0.1906...

so she paying about 19 cents per mile  :)

Answer:

(-4,5)

Step-by-step explanation:

use elimination method to solve

x+2y=6

3x+4y=32

make the x coefficient to be equal by multiplying the x by 3

3x+6y=18

-3x+4y=32

since the signs for the z coefficient are different than you add 3x+-3x=0

6y+4y=10y

18+32=50

10y=50

y=5

if y is equal to 5 then substitute

x+(2*5)=6

x+10=6

x=-4

(-4,5)

Answer:

S = 6

I think

Answer:

s=6

Step-by-step explanation:

if you are figuering it out in order then r=26 then you subtract 10 and get h=16 so then you subtract 6 more and get s=6

Answer:

the correct option is 75

Step-by-step explanation:

The standard notation for how to write tables is in the next way.

[tex]\left[\begin{array}{ccc}inpt&outpt\\x_1&y_1\\x_2&x_2\end{array}\right][/tex]

Where the input values are represented in the x-axis (the horizontal one) and the output values are on the y-axis (the vertical one).

In this case, we want to find the number of (x-value) for the height of 250.

Then we need to look at the vertical axis and find the value y = 250.

Now let's move to the right until you meet with the point.

Once you reach the point, move down to the axis, the value at which you intersect the axis is the x-value.

We can see that the point is on the middle of the x-values:

x = 70 and x = 80

Then the x-value of the point is x = 75

This means that the correct option is 75

Answer:

x= 171 y=205

(171,205)

Answer:

14

Step-by-step explanation:

you just look at how much everything equals and that it is adding by 2

Answer:

x = 1.3

Step-by-step explanation:

Eliminate fractions first.  Multiply all four terms by 100.  The result will be:

380 + 450x - 140 = 825

Combine like terms:

240 + 450x = 825, or

585 = 450x, or:

x = 1.3

Answer:

Step-by-step explanation:

It’s c

Answer:

1 : 5

Step-by-step explanation:

The scale factor is the ratio of corresponding sides, smaller to larger, then

3 : 15 = 1 : 5

Answer:

the average number of subscribers to the online magazine in 2010 was 320,000

Answer:

x+23

Step-by-step explanation:

3x+18-2x+5

3x-2x=x

18+5=23

x+23

Answer:

1/6 mile

Step-by-step explanation:

Distance divided = 1/2 miles

No of sections = 3

Each division must equal = 1/2/3

                             = 1/2*1/3 = 1/6 mile.

The distance between each of the signs i.e between the first and second , second and third is 1/6 of the mile.

This can be done in decimals as well

1/2 mile= 0.5 mile.

When we divide 0.5 mile by 3 we get  0.167 which is equal to 1/6 in fractions.

Answer:

The mean will increase

Step-by-step explanation:

Answer:

4(3+x)

Step-by-step explanation:

12+4x = 4(3+x)

Answer:

9/8

Step-by-step explanation:

When dividing by fractions, you take the first number and multiply it by the reciprocal of the second number.

so in this case, 6/8 times 3/2

18/16

9/8

Answer:

The third one

Step-by-step explanation:

if its not that one then its the first one

Answer:

D

Step-by-step explanation:

8 * 5 * 11 = 440

Answer: 0.4

Step-by-step explanation:

If the height of the first bounce is 5.5, then you find what 60% of 5.5 is and to do that you do 60/100 and x/5.5 so cross multiply 60x5.5 to get 330 then divide by 100 to get 3.3 and you do that 5 more times to get 0.42768 which when rounded to the tenths place, gets you 0.4

Answer:

m∠A≈ 36

m∠B≈ 55

c≈ 25.8

Step-by-step explanation:

i hope this helps you :)

Answer:

The answer is (3, -3)

Step-by-step explanation:

Translating it down means subtracting from the second value, or the y value. 0 - 3 = -3. You keep the x value the same.

Answer:

C(3, -3).

Step-by-step explanation:

When it is translated down, the y-coordinate changes.

Subtract 3 from the y-coordinate.

C(3, 0) becomes C(3, -3).

Answer:

The answer is D.

Step-by-step explanation:

Answer:

The correct answer should be the first option.

Step-by-step explanation:

Answer:

First option. The graphs domain is -∞<x<∞ and its range is -5 ≤ y < ∞

Step-by-step explanation:

I graphed this function

Domain: x ∈ R

Range: y ∈ [-5, + ∞

Minimum (1, -5)

Verticle intercept (0, -4)

Answer:

1.2 A

Step-by-step explanation:

Answer:

1.2

Step-by-step explanation:

Answer:

5, -28, 10.4, -.875, 0, 8003

Step-by-step explanation:

Answer:

sorry i didn't know it

i tried i got the 3 one but ¨i'm not sure¨

Answer:

B. 50 degrees

Step-by-step explanation:

I am not 100% sure and if this is a right triangle, then it's measure is 90 degrees. So, 140 degrees minus 90 degrees would total, 50 degrees.

Answer:

B: 50 degrees

Step-by-step explanation:

You first find the other angles of the triangle. One is 90 degrees at the corner. The other would be 40 because the outside angle is 140 and that is 40 away from 80. Add 40 and 90 together to get 130 degrees. Subtract that from 180 and that is 50 degrees :)

Hope this helps!

Answer:

x=-3 is not a solution

Step-by-step explanation:

well, lets plug it and and see!

6(-3)-19=3(-3)-10

-18-19=-9-10

-37=-19

-37 DOES NOT equal -19.

so x=-3 is not a solution

hope this helped! :)