The value of m varies inversely as the square of n. When n = 3 m = 6.
What is the positive value of n when m = 13.5?
(I already know C. is wrong)
A. 18
B. 2
C. 9 XXXX
D. 4

9514 1404 393

Answer:

  1.  see the first attachment for a graph; quadrants I, II, III; vertex (-3, -4); x-intercepts -5, -1; graph is dashed line, shaded inside the parabola, which opens up

  2.  see the second attachment for a graph; all quadrants; vertex (1, 2); x-intercepts 1±√2; graph is a solid line, shaded outside the parabola, which opens down; (-7, 0) is a solution

Step-by-step explanation:

1. The boundary expression is in vertex form, so the vertex can be read directly.

  y = (x -h)^2 +k . . . . . . parabola with vertex (h, k)

  y > (x +3)^2 -4 . . . . .  (h, k) = (-3, -4)

The leading coefficient is +1, a positive number, so the parabola opens up. The relation is y > ( ), so values of y above the dashed line will be shaded. Those values are inside the parabola. The points (0, 0) and (-7, 0) are not in the shaded area, so are not solutions.

__

2. Again, the boundary expression is in vertex form, so the vertex can be read directly.

  y ≥ -(x -1)^2 +2 . . . . . (h, k) = (1, 2)

The x-intercepts are found by solving for x when y=0:

  0 = -(x -1)^2 +2

  x -1 = ±√2

  x = 1±√2

The leading coefficient is -1, so the parabola opens downward. The relation is y ≥ ( ), so y-values above the solid line will be shaded. Those values are outside the parabola. Point (0, 0) is not a solution. Point (-7, 0) is a solution.

_____

Additional comment

As with the graph of any inequality, the boundary line is solid when the "or equal to" case is part of the relation. If the relation is strictly "greater than" or "less than", then the boundary line is dashed.

Answer:

Decision rule

   Reject null hypothesis

Conclusion

There is significance evidence that the true mean is different from 0.86

Step-by-step explanation:

From the question we are told that

  The population mean   [tex]\mu  = 0.86[/tex]

   The  sample is  mean is [tex]\=  x  =  0.8708[/tex]

  The standard deviation is  [tex]\sigma =  0.0068[/tex]

The  level of significance is  [tex]\alpha  =  0.01[/tex]

  The  sample size n =  3

The null hypothesis is  [tex]\mu =  0.86[/tex]

The alternative hypothesis  is [tex]\mu \ne  0.86[/tex]

Generally the test statistics is mathematically represented as  

    [tex]z =  \frac{\=  x  - \mu }{ \frac{\sigma}{\sqrt{n} } }[/tex]

=> [tex]z =  \frac{ 0.8708 - 0.86 }{ \frac{0.0068}{\sqrt{3} } }[/tex]

=>  [tex]z =  2.751  [/tex]  

Generally  p- value is mathematically represented as

       [tex]p-value =  2 P(z >2.751   )[/tex]

From the z-table  

        [tex]P(z >2.751 ) =  0.0029707[/tex]

So

     [tex]p-value =  2 *  0.0029707[/tex]

=>   [tex]p-value =  0.00594 [/tex]

From the obtained question we see that  [tex]p-value  <  \alpha[/tex]

Hence we reject the null hypothesis

24 hours

brainliest pls

Answer:

Step-by-step explanation:

24 hours because 3 x3 is 9 making it possible for you to multiply 8 by 3. So 8 x 3 is 24 hours.

Answer:

total surface area Stot = 100 m2

lateral surface area Slat = 72 m2

top surface area Stop = 14 m2

bottom surface area Sbot = 14 m2

Step-by-step explanation:

Answer:

Step-by-step explanation:

parallel angles are equal

3x + 21 = 6x - 60

combine similar terms:

3x - 6x = -60 - 21

-3x = -81

x = 81/3

x = 27

now, plugin the value of x=27 back into the equation to get the angle:

= 3x + 21

= 3(27) + 21

= 102

= 6x - 60

= 6(27) - 60

= 102

as you noticed, both values are equal 102 = 102 because its a parallel angles

so the equation is 3x + 21 = 6x - 60

================================

Answer:

Step-by-step explanation:

If a cheese sandwich consists of 2 slices of bread and 3 slices of cheese, in order to determine the number of whole cheese sandwiches that can be prepared from 44 slices of bread and 69 slices of cheese, we will use the equality postulate as shown;

1 cheese sandwich = 2 slices of bread

x cheese sandwiches = 44 slices of bread

cross multiply

2 * x = 1 * 44

2x = 44

divide both sides by 2

2x/2 = 44/2

x = 22

Similarly;

1 cheese sandwich = 3 slices of cheese

y cheese sandwiches =  69 slices of cheese

cross multiply

3 * y = 1 * 69

3y = 69

divide both sides by 3

3y/3 = 69/3

3y = 23

Since both values of x and y are greater than or equal to 22 hence 22 sandwiches can be prepared from 44 slices of bread and 69 slices of cheese.

Since the amount of cheese sandwiches made from slices of bread (22) is not up to that made from slices of cheese (i.e 23), hence the ingredient that limits the number of sandwiches that can be made is the slice of bread

Answer:

3

Step-by-step explanation:

Answer:

I'm pretty sure the answer is 3

Step-by-step explanation:

I typed it into my calculator and it came back as 3 so...

Answer:

(-1/2     -1/8

  1/4    3/16)

Step-by-step explanation:

(-3  -2

 4    8 )  ^ -1

First find the determinant

-3 * 8  - (-2 *4) = -24 - (-8) = -24 +8 = -16

Multiply 1 over the determinant by The matrix with the -3 and 8 switched

and negate the -2 and the 4

1/-16(8  2

        -4    -3 )

(-1/2     -1/8

  1/4    3/16)

Answer:

-1/2     -1/8

1/4    3/16

Step-by-step explanation:

B^3 = 1000

Take the cubic root of both sides:

b = ∛1,000

∛1000 = 10 x 10 x 10

b = 10

Answer:

QR and TM never intersect

Step-by-step explanation:

this is the only answer that is ALWAYS true

Answer:

$4.59

Step-by-step explanation:

Answer: f

Step-by-step explanation:

11 is on RHS or the right hand side

therefore the variable in LHS or left hand side is f

hope it helped u,

pls put thanks

Answer(-14x power2+18x)

Answer:

it is 17

Step-by-step explanation:

hope this helps :)

Answer:

21

Step-by-step explanation:

4x-12=72

   +12 +12

4x=84

/4   /4

x=21

This is a higher grade than mine i dont know sorry :(

Answer:

I think I know what the answers are but I can't be sure.

Step-by-step explanation:

Answer:

1050

Step-by-step explanation:

Multiply 150 by 7

Answer:

8

Step-by-step explanation:

The Y intercept is 8.

Answer: x=1.686377,−1.686377

Step-by-step explanation:

9x6=207

Step 1: Divide both sides by 9.

9x6/9=207/9

x6=23

Step 2: Take root.

x=±(23)(16)

x=1.686377,−1.686377

Answer:

49x0.08= 3.92 l

Step-by-step explanation:

so, you must order 4 bottles

Answer:

4 bottles

Step-by-step explanation:

49×0.08=3921

Answer and Step-by-step explanation:

The rational function is the function that can be written in terms of ratio that contains two polynomial functions in which the denominator is not equivalent to zero

Now the two questions that should be asked which are as follows:

1. Translate real life to rational functions.

2. Process for translate to real life to rational functions

These two questions should be asked

The two question that I want to ask to clarify the process of translating real life situation to rational function are

For better understanding, lets explain what rational function means.

From the above we can therefore say that the answer The two question that I want to ask to clarify the process of translating real life situation to rational function are

Learn more about rational functions from:

https://brainly.com/question/19044037

Answer:

deserts are 32.5%

appetizers are 42.5%

deserts are 25%

Step-by-step explanation:

let me know if i helped

Answer:

566.525

Step-by-step explanation:

26.35 × 21.5

Answer:

?? If you answer is how does 10 become 100, you multiply 10 by 10?? Sorry

Step-by-step explanation:

Answer:

100 is 10 times as much as 10

Step-by-step explanation:

10 times 10 is 100.

Step-by-step explanation:

16. d-4 = -7

or, d = -7+4

or, d = -3

therefore, d = -3.

17. c-34 = 20

or, c = 20+34

or, c = 54

therefore, c = 54

18. a-4 = -18

or, a = -18 + 4

or, a = -14

therefore, a = -14

19. r-3 = 8

or, r = 8+3

or, r = 11

therefore, r = 11

20. z-100 = 100

or, z = 100+100

or, z = 200

therefore, z = 100

21. 5 = d - 1

or, 5+1 = d

or, 6 = d

or, d = 6

therefore, d = 6

Answer:

63 men said no.

Step-by-step explanation

3/5 * 2/2 = 6/10, 6/10 - 3/10 (women) = 3/10 meaning 7/10 men said no. 90*1.7 = 153, 153-90=63

Answer:

30%. Remember the question is what percentage?

Step-by-step explanation:

Given Informations:

Men = 90

Women = 60

Total number (men + women) = 150.   ...... (1)

For Yes Members,

3/5 of the people said YES.

3/5 of 150 = 90 .......                                        (2)

This means that out of 150, 90 people said YES.

However, we dont know what ratio are men or women all we can deduce is that 90 said YES.

From the question, 3/10 are women that said YES.

Meaning 3/10 of 90 are women = 27. ..                  (3)

27  women said YES therefore

90 -27 = 63  Men said YES.

FOR NO Members,

If 90 out of 150 said yes, then 60 said NO.

However, we dont know the ratio of Men and Women that said NO. What we can do is to solve it from the known to the unknown.

For Men,

The total number is 90.

63 said YES, therefore (90 - 63 ) definitely said NO.

= 27 Men said NO                         (4)

For Women,

The total number of women is 60

27 said YES, Therefore (60 - 27) said NO

= 33 women said NO.      ( 5)

The question is what percentage of Men said NO?

Percentage =

number of men that said NO / The total number of Men  * 100

= 27/90 * 100

=30%

To Prove the Answer

If you agree with Eq 2, which says 90 people said yes. Therefore, (150 -90) = 60 said NO.

Remeber the 60 is inclusive of Men and Women.

Let's see, if we will get 60 when we add the number of men and women we got that said NO.

Add the value in Eq 4 + Eq 5.

27 + 33 = 60.

Answer:

A, 80

Step-by-step explanation:

Answer:

The slope of the line is zero because there is no change in y or x