I NEED HELP ASAP
FIND THE VALUE OF X

Answer:

h0:u ≥ 21.1

h1: u < 21.1

t statistics = -2.632

pvalu = 0.007

there is sufficient evidence to support claim

Step-by-step explanation:

null hypothesis

h0 = u≥21.1

alternative = u < 21.1

to get test statistics

barx - u / s/√n

= 19.4 - 21.1 / 3.23/√25

= -2.632

we calculate for the p value given this test statistics and the degree of freedom = 25-1 = 24

lest tailed p value = 0.0073 this is approximately 0.007

p value is less than the level of significance so we reject h0

we conclude that we have enough evidence to support h1, mean tar conent is less than 21.1

Answer:

A) Diameter = 9.03 ft

B) Circumference = 28.35 ft

Step-by-step explanation:

64 = πR²

R² = 64/3.14 = 20.38

Radius = 4.51 ft

Diameter = 2(4.51) = 9.03 ft

Circumference = 9.03 x 3.14 = 28.35 ft

Answer:

13/4 or 3 1/4

Step-by-step explanation:

5/3 + 3/4 + 5/6 =

= 20/12 + 9/12 + 10/12

= 39/12

= 13/4

= 3 1/4

Answer:

[tex]cos(x)[/tex]

Step-by-step explanation:

Let's recall the definition of the trigonometric identities in place:

[tex]cot(x)=\frac{1}{tan(x)} =\frac{cos(x)}{sin(x)}[/tex]  and

[tex]csc(x)=\frac{1}{sin(x)}[/tex]

Then, we substitute and simplify as follows:

[tex]\frac{cot(x)}{csc(x)}=cot(x)*\frac{1}{csc(x)}=\frac{cos(x)}{sin(x)}*sin(x)=cos(x)[/tex]

Answer:

Nerf football cost is $9.48.

Step-by-step explanation:

Total order made by Mr. DiCanio = $97.23

A playground ball cost $17.25 each, so that the cost of 4 playground balls can be determined by;

4 playground balls = $17.25 x 4 = $69.0

A package of 10 jump ropes = $18.75

Cost incurred on the items above = $69.0 + $18.75

                                                         = $87.75

Thus,

The cost of 1 Nerf football = $97.23 - $87.75\

                                           = $9.48

Therefore, the cost of Nerf football is $9.48

Answer:

15.

c is a negative

3 - (-12)

15

Answer:

Step-by-step explanation:

can you repost with the image

Answer:

2 to the power of 2 +  

Step-by-step explanation:

Distribute

Eliminate redundant parentheses

Subtract the numbers

Combine like terms

Combine like terms... again

Multiply by 1 = 2 to the power of 2 +

Answer:

(32+3+3)−1(2+2+3)(3x^{2}+3x+3)-1(x^{2}+2x+3)

(3x2+3x+3)−1(x2+2x+3)

Simplify

1

Distribute

(32+3+3)−1(2+2+3)(32+3+3)−12−2−32

Eliminate redundant parentheses

(323+3)−12−2−332+3+3−12−2−33

Subtract the numbers

32+3+3−2−2−332+3−12−24

Combine like terms

32+3−12−222+3−25

Combine like terms

22+3−222+16

Multiply by 1

Solution

22+

Answer:

Step-by-step explanation:

1. 15 points

2. mode-50    basically the number with the most points

3. median is 45  

Answer:

Yes

Step-by-step explanation:

Because 9/12 and 6/8 are both equivalent to 3/4 of the total.

Answer:

Equation of parabola:  8*(y - 2) = (x - 3)^2

or

y = (1/8)*(x - 3)^2 + 2

Step-by-step explanation:

focus at (3,4) and its directrix y = 0.

Focus equation:  (h, k + c) = (3, 4)

Directrix equation  y =  k - c = 0

so  h = 3,   k + c = 4,   k - c = 0

Solve  the system :  k + c = 4 and k - c = 0

add the equations together:     k + c + k - c = 4 + 0

2k = 4

k = 2

so   k + c = 4,    2 + c = 4,   c = 2

4c (y - k) = (x -  h)^2

4*2 *(y - 2) = (x - 3)^2

8*(y - 2) = (x - 3)^2

Answer:

ion even kno just tryna get points

Step-by-step explanation:

use g00glek

Answer:

Answer: 2.25

Step-by-step explanation: This is because 2.25*40 is 90

Hope this helps and brainliest would be appreciated

Answer:

15. a

16. b

17. d

18. a

19. a

Step-by-step explanation:

I dont like exponents lol but these should be correct, try using math-way or cy-math (without the hyphens) if you need help, you can also ask me of course!

Answer:

£32 and £32

Step-by-step explanation:

The computation of the amount that should be left and equally distributed is shown below:

The cost of hotel for one night is £84

Brenda has make a deposit of £20

So, the remaining amount left is

= £84 - £20

= £64

Now this amount should be equally distributed between them i.e. £32 and £32

Answer:

5/15

(1/3 if u want it simplified)

(about 33.3 % if you want percentage)

Step-by-step explanation:

6 + 4 + 5 = 15 total marbles

There are 5 blue marbles.

Answer:

1.50

Step-by-step explanation:

Answer:

There is only one image

Step-by-step explanation:

Due to not knowing many there are in the container, here is how to get the answer on a calclator:

*Number of amount in container* Divided by 5

Then get that original container amount then subtract the number you got from the previous equasion

This is my tactic and it always works for me

Answer:

48%

Step-by-step explanation:

[tex]\frac{25}{52} = 0.48[/tex]

0.48 = 48%

Answer: $65.85

Step-by-step explanation:

We are going to start out by using this equation

$439(n)

n will equal 0.15 (due to the question asking for 15% of $439

439(0.15)

Your answer will be

$65.85

Answer:

The hall needs to sell 182 tickets to have a sold-out concert.

Step-by-step explanation:

To have a soldout concert, you need to have zero tickets remaining.

In this question, there are 43 + 97 + 42 = 182 seats remaining, which means that the hall needs to sell 182 tickets to have a sold-out concert.

Answer:

blue

Step-by-step explanation:

1/3·π·8∧2·8=536.17

(1/3·π·r∧2·h)

Answer:

Step-by-step explanation:

I assume that 16 m is the radius, not a diameter.

Answer:

...........

Step-by-step explanation:

::

z+12=15