A new centrifugal pump is being considered for an application involving the pumping of ammonia. The specification is that the flow rate be more than 4 gallons per minute (gpm). In an initial study, eight runs were made. The average flow rate was 6.4 gpm and the standard deviation was 1.9 gpm. If the mean flow rate is found to meet the specification, the pump will be put into service.
1. State the appropriate null and alternate hypotheses.
2. Find the P-value.
3. Should the pump be put into service? Explain.

I'm still doing the rest but number 1 is D

Answer:

65

Step-by-step explanation:

just had to divide. your welcome

Answer:

[tex] \displaystyle m\angle JKM = 50[/tex]

Step-by-step explanation:

remember that,

if a side of a triangle expanded exterior so formed is equal to the sum of the two interior angles

so,

[tex] \displaystyle m\angle JKM = 25 + 25[/tex]

simplify addition:

[tex] \displaystyle m\angle JKM = 50[/tex]

Answer:

x=8

Step-by-step explanation:

80=3x+2(5x-12)

80=3x+2(5x)+2(-12)

80=3x+10x-24

80=13x-24

104=13x

x=104/13

x=8

If this helps please mark as brainliest

Answer:

here,radius =2 in

now use formula pie (r)^2 where pie is 3.14

=pie *(r)^2

=3.14*(2in.)^2

=3.14*4in.^2

12.56in.^2

Step-by-step explanation:

Answer:

Hello! answer: 4/5

Step-by-step explanation:

20 ÷ 5 = 4 25 ÷ 5 = 5 that is 4/5 therefore 4/5 is the answer because we cannot reduce any further HOPE THAT HELPS!

Answer:

         [tex]\frac{20}{25} =\frac{4}{5}[/tex]

Answer:

750 000

Step-by-step explanation:

45 000 000 ÷ 60 = 750 000 gallons of water per second

Answer:

what's your radius to the circle?

Answer:

5/8 Jar

Step-by-step explanation:

I took the test...

Answer:

54

Step-by-step explanation:

A PE X

The answer is the measure of CA = 54°

An inscribed angle in a circle is formed by two chords that have a common end point on the circle. This common end point is the vertex of the angle.

An inscribed angle in a circle is formed by two chords that have a common end point on the circle. This common end point is the vertex of the angle.

In the circle, the two lines AC and AD intersect outside the circle at the point A .

m∠CAE=1/2(m CD−m BE)

The formula for the angle between 2 secants is

1/2 (124 - 16)

= 1/2 * 108

= 54°

Therefore the measure of CA = 54°

To know more about  Inscribed Angle

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Answer:

mean: 4

median: 5

mode: 5

Step-by-step explanation:

Hi there!

Let's first start with the mean

the mean is the average of all of the numbers; we add up how many hours each week each student spent playing video games and then divide it by how many people responded (9)

(0+5+7+5+3+0+9+5+2)/9

add all of the numbers on top

36/9

divide

4

the mean is 4

now find the median, or the value that separates the upper half from the lower half of the data (it's the "center" value).

first, list the numbers in order from least to greatest

0,0,2,3,5,5,5,7,9

now get rid of the largest number and the smallest number  (0 and 9)

the set is now:

0,2,3,5,5,5,7

now get rid of the largest and smallest number in the new set (0 and 2)

the set becomes:

2,3,5,5,5

get rid of the largest and smallest number in the new set (2 and 5)

3,5,5

get rid of the largest and smallest number in the new set  (3 and 5)

5

the median is therefore 5

the mode is the number that occurs most frequently in the data set

here's our list again of all of the numbers from least to greatest:

0,0,2,3,5,5,5,7,9

we can count how many times each number appears to find the mode

0: 2 times

2: 1 time

3: 1 time

5: 3 times

7: 1 time

9: 1 time

since 5 appeared the most times, then the mode is 5

hope this helps!

Answer:

x = 11

Step-by-step explanation:

[tex]x-3y=-7[/tex]

[tex]5x=-2y+67[/tex]

=> [tex]x=\frac{1}{5}(-2y+67)[/tex]

=> [tex]x=-\frac{2}{5}y+\frac{67}{5}[/tex]

=> [tex]-\frac{2}{5}y+\frac{67}{5}-3y=-7[/tex]

=> [tex]-\frac{17}{5}y+\frac{67}{5} =-7[/tex]

=> [tex]\frac{-17}{5}y=-\frac{102}{5}[/tex]

=> y = 6

=> [tex]x=-\frac{2}{5} .6+\frac{67}{5}[/tex]

=> x = 11

Answer:

54

Step-by-step explanation:

First solve for brackets then multiplication or division then addition or subtraction

Answer: 52.

Step-by-step explanation: I don't know if you know about PEMDAS, but it basically stands for (Parenthesis, Exponents, Multiplication, Division, Addition, Subtraction). So first, we would do Parenthesis. In the parenthesis, we have 3 + 4 - 1. Addition and Subtraction are the same, since they are inverse operations. We would start from left to right, so the addition goes first. 3 + 4 = 7. Now we are left with 7 - 1. 7 - 1 = 6. The equation so far is: 16/4 + 54 - 6. Next, we will do division. 16 ÷ 4 = 4. The equation so far is: 4 + 54 - 6. Now, we have to add 4 + 54 since we are doing it from left and right. 54 + 4 = 58. We are left with 58 - 6. 58 - 6 = 52. So your final answer is 52. Hope this helps!! :) **I tried my best**

Answer:

(4,4)

Step-by-step explanation:

1) Using substitution: move 7y to the other side by subtraction

x = 32 - 7y

2) substitute in for x in the first equation

-2(32 - 7y) + 7y = 20

3) distribute

-64 + 14y + 7y = 20

4) add like terms and solve for y

21y = 84

y = 4

5) plug in y value of for in one of the eqautions to get x value

-2x + 7(4) = 20

x = 4

Answer:

12 + 5X = Y

Step-by-step explanation:

Given that a video store charges $ 5 per game rental plus $ 12 to rent the game system, to write an expression for renting the game system and a number of games the following logical reasoning must be performed:

5 = variable not fixed, depends on the number of games

12 = fixed variable

X = number of games

Y = total value

12 + 5X = Y

Thus, if 5 video games were rented, the equation would operate as follows:

12 + 5x5 = Y

12 + 25 = Y

37 = Y

Answer:

452.16 inches²

Step-by-step explanation:

→ Write circle area formula

π × r²

→ Substitute in the numbers

3.14 × 12²

→ Simplify

452.16 inches²

Answer:

16 times

Step-by-step explanation:

Hi,

As said on go ogle...

"Well, the space station orbits Earth about every 90 minutes, so that means in a 24 hour day, the space station orbits approximately 16 times."

Again, this is not from me, I don't take credit.

I hope this helps :)

Well, the space station orbits Earth about every 90 minutes, so that means in a 24 hour day, the space station orbits approximately 16 times.

The concept of time is in contradiction between general relativity and quantum mechanics in theoretical physics because quantum mechanics views time flow as universal and absolute while general relativity views it as changeable and relative.

To learn more about time refer to:

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Answer:

it's very blurry, and i can't see the question

Answer:

7 percent or 11

Step-by-step explanation:

Answer:

[tex]P(x) = x^{2} -4x -4\\\\P(x=-3) = (-3)^2 - (4*-3) -4\\\\P(x=-3) = 9 + 12 -4 =17[/tex]

Answer:

the population in 2015 is 8201.0695

Step-by-step explanation:

Given that

There is a population of the 50 timber wolves

And, the exponential function given is

p(t) = 50 × e^(0.85 × t)

Here t denotes the time period i.e.

= 2015 - 2009

= 6

So,

= 50 × e^(0.85 × 6)

= 8201.095

Hence, the population in 2015 is 8201.0695

Answer:

Step-by-step explanation:

Answer:

principal=1600

rate=5%

amount=1920

time=x

interest=p*t*r/100

=1600*x*5/100

=8000x/100

80x

amount=principal +interest

1920=1600+80x

1920-1600=80x

320/80=x

4=x

therefore after 5 years 1600 amount to 1920 at the rate of 5%

Step-by-step explanation:

Answer:

38 and 21

Step-by-step explanation:

add 12+12+15 =38

add 6+6=12

take away 15-12=3

and then add 18+3=21

Answer:

∠ h = 75°

Step-by-step explanation:

∠ e = ∠ a = 105° ( corresponding angles )

∠ h and ∠ e are adjacent angles and sum to 180°

∠ h + 105° = 180° ( subtract 105° from both sides )

∠ h = 75°