someone answer this please

Considering the desired result of the hypothesis test, we the closest mean time to 1.5 hours, hence the correct option is:

C. 1.6 hrs

The closer the mean is to the sample mean, the less likely we are to reject the null hypothesis.

In this problem, the sample mean is of 1.5 hours, hence, the closest value, considering the absolute value of the difference, is of 1.6 hours, hence option C is correct.

More can be learned about the test of an hypothesis at https://brainly.com/question/16313918

Answer:

5/4

Step-by-step explanation:

B = kC/D³

Given B = 5, C = 2, D = 1

so 5 = k(2)/1³ = 2k, k = 5/2 = 2.5

B = 2.5C/D³

when C = 4, D = 2

B = 2.5 * 4/2³ = 10/8 = 5/4

Answer:

maximum at (3,23)

Step-by-step explanation:

graphed it

Answer:

52d+24433 is the correct answer

Answer:

24433+52d

Step-by-step explanation:

Simplify by adding

Answer:

The answer is 1920 cm

Step-by-step explanation:

First we need to break up to two separate shapes. These shapes are both rectangles, one on the right and one on the left.

To find the volume of a Prism, the equation is V=lwh (length x width x height).

So by splitting up the shape we have two different equation

V= (10)(8)(14) =1120

V= (10)(8)(10)=800

Now we add 1120+800 to get the volume of the entire shape, which is 1920 cm.

Answer:

There were 140 tickets sold that cost $15 and 160 tickets sold that cost $20.

Step-by-step explanation:

To solve this problem, we should create a system of equations. Let's let the variable x represent the number of $15 tickets sold and let the variable y represent the number of $20 tickets sold. Using these variables, we can make the following equations:

x + y = 300

15x + 20y = 5300

To solve this equation, we can use substitution. Our first step in this case is solving the first equation for one variable; let's choose x.

x = 300 - y

Now, we can substitute this value for x into the second equation.

15(300-y) + 20y = 5300

Next we can distribute through the parentheses on the left side of the equation.

4500 - 15y + 20y = 5300

We can combine like terms on the left side of the equation to simplify.

4500 + 5y = 5300

We should then subtract 4500 from both sides of the equation.

5y = 800

Finally, we can divide both sides of the equation by 5.

y = 160

To solve for x, we can substitute this value for y into either of our original equations, but we should probably choose the first one for simplicity.

x + y = 300

x + 160 = 300

x = 140

Therefore, x = 140 and y = 160; this means that 140 $15 tickets were sold and 160 $20 tickets were sold.

Hope this helps!

Answer:

n-1, -n+1

Step-by-step explanation:

| x - 1 | = n

so x-1 = n , -n

for x-1=n ; x= n+1

for x-1=-n ; x= -n+1

Answer: True, True, True

Step-by-step explanation:

A. True. Angles B and C are congruent, and since B' is congruent to B, by the transitive property, C is congruent to B', and thus has the same measure.

B. True. AB>BC, and the rigid motions won't change the side lengths.

C. True for the same reason in B.

Answer:

  $21,623.70

Step-by-step explanation:

A suitable financial calculator can compute the beginning balance and the remaining balance for you. The attachments show a TI-Nspire calculator's TVM solver app being used to answer this question.

The first attachment shows the computation of the loan value. It is about $37,624.54.

The second attachment shows the computation of the remaining balance after 16 of the 32 semi-annual payments have been made.

The loan balance 8 years from the end of the loan will be about $21,623.70.

Answer:

13/28

Step-by-step explanation:

26/(26 + 30) = 26/56 = 13/28

Answer:

[tex]\displaystyle 33,8 ≈ b \\ 55,1 ≈ a \\ 35° = m∠B[/tex]

Step-by-step explanation:

We will be using the Law of Sines to find edges b and a one at a time, therefore we will use the given variables in the formulas:

Solving for Angles:

[tex]\displaystyle \frac{sin∠C}{c} = \frac{sin∠B}{b} = \frac{sin∠A}{a}[/tex]

**Use [tex]\displaystyle arcsin\:or\:sin^{-1}[/tex]in your solution or you will throw the result off!

Solving for Edges:

[tex]\displaystyle \frac{c}{sin∠C} = \frac{b}{sin∠B} = \frac{a}{sin∠A}[/tex]

__________________________________________________________

[tex]\displaystyle \frac{33}{sin\:34} = \frac{b}{sin\:35} \hookrightarrow \frac{33sin\:35}{sin\:34} = b \hookrightarrow 33,848824408... = b \\ \\ 33,8 ≈ b[/tex]

We will now define edge a:

[tex]\displaystyle \frac{33}{sin\:34} = \frac{a}{sin\:111} \hookrightarrow \frac{33sin\:111}{sin\:34} = a \hookrightarrow 55,093964682... = a \\ \\ 55,1 ≈ a[/tex]

This triangle is now deemed solved.

***The fact that you solved for the [tex]\displaystyle m∠B[/tex]tells me that you understood what to when it comes to the interior angles of triangles, so I did not have to cover that. Good wourk citisen!

I am delighted to assist you at any time. If you have further questions though, comment them and I will do my very best to answer them.

Answer:

(1, 5)

Step-by-step explanation:

The solution to the system of equations is the point of intersection of the two lines.  From inspection of the graph, the point of intersection is at (1, 5).

Proof

The solution to a system of equations is the point at which the two lines meet.  

⇒ g(x) = f(x)

⇒ 3x + 2 = |x - 4| + 2

⇒ 3x = |x - 4|

⇒ 3x = x - 4   and   3x = -(x - 4)

⇒ 3x = x - 4

⇒ 2x = -4

⇒ x = -2

Inputting x = -2 into the 2 equations:

⇒ g(-2) = 3 · -2 + 2 = -4

⇒ f(-2) = |-2 - 4| + 2 = 8

Therefore, as the y-values are different, x = -2 is NOT a solution

⇒ 3x = -(x - 4)

⇒ 3x = 4 - x

⇒ 4x = 4

⇒ x = 1

Inputting x = 1 into the 2 equations:

⇒ g(1) = 3 · 1 + 2 = 5

⇒ f(1) = |1 - 4| + 2 = 5

Therefore, as the y-values are the same, x = 1  IS a solution

and the solution is (1, 5)

Step-by-step explanation:

the first question

x²+x+5

when x is -4

(-4)²+(-4)+5

16-4+5

12+5

17

hope this was helpful

Answer:

b(n) = 15 - 7(n - 1)

Step-by-step explanation:

Answer:

aₙ = 11 - 9(n - 1)

Step-by-step explanation:

2 - 11 = (-7) - 2 = -9

So it is an arithmetic sequence

a₁ = 11

a₂ = 2 = 11 + (-9) = 11 + (2 - 1)*(-9)

a₃ = -7 = 2 + (-9) = 11 + (-9) + (-9) = 11 + (3 - 1)*(-9)

.....

aₙ = 11 + (n - 1) * (-9)

or

aₙ = 11 - 9(n - 1)

Answer:

the answer is =118000

Step-by-step explanation:

$107,000+5,000+6,000=118000                                                                                   Its simple

Answer:

[tex]\sf\blue{triangle \: \: is \: \: congruent \: \: } \\

\sf\huge{by \: \: S.A.S \: axiom \: \: }[/tex]

Answer:

Refer to the attachment for the labelling of the triangles.

In △ABD & △ACD,

AD = AD (common side)

∠A = ∠A (common angle)

AB = AC (equal pair of sides)

•°• △ABD ≅ △ACD (Single-Angle-Side congruence rule → SAS congruence rule)

Hope it helps ⚜

The number of friends that can go ice skating is 5.

The total amount spent = cost of the group ticket + total cost of the hot chocolate + total cost of renting the skates

$38.75 = $10 + $4x + $1.75x

Where x represents the total number of friends.

In order to determine the total number of friends, take the following steps:

Combine similar terms

$38.75 - $10 = $4x + $1.75x

Add similar terms

$28.75 = $5.75x

Divide both sides of the equation by 3.75

x = 5

To learn more about division, please check: https://brainly.com/question/13281206

Answer: 8 inches

Step-by-step explanation:

In a 30-60-90 triangle, the ratio of the short side to the long side is 1/sqrt(3).

Therefore the short side is the long side divided by sqrt(3).

So the short side = 8 sqrt(3)/sqrt(3) = 8 inches

Answer:

1.17219

Step-by-step explanation:

sin(23)=x/3

3 x sin(23)

Answer:

It is already in standard form

Step-by-step explanation:

Four hundred eighty-two and seventy-three thousandths. = 482.073

It is already in standard form

Hope this helps!

Hey there!

482.073 is expressed in

Standard Form

The standard form of 482.073 is 482.073. (four hundred eighty-two point zero seven three)

I hope you find my answer helpful.

Good luck!

Have a great day!

[tex]\bf{StargazingWithJoy}[/tex]

Answer:

the price of each adult ticket is $43

Step-by-step explanation:

Let's say the price for 1 adult ticket is x and the price for 1 child ticket is y

3y = 18.5 and 3y + 2x = 104.50

2x + 18.5 = 104.50

2x = 104.5 - 18.50

2x = 86

x = [tex]\frac{86}{2}[/tex]

x = 43

So the price for 1 adult ticket is $43

Answer:

Let's say the price for 1 adult ticket is x and price for 1 child ticket is y

3y = 18.5 and 3y + 2x = 104.5

<=> 2x + 18.5 = 104.5

<=> 2x = 104.5 - 18.5

<=> 2x = 86

<=> x = 86 / 2

<=> x = 43

So the price for 1 adult ticket is $43

Answer:

2018, 2004

Step-by-step explanation:

substitute C(t) for 1274 because it's the cost

1274=6(t-11)^2+980

6(t-11)^2=294

(t-11)^2=49

x-11=7 x-11=-7

x=18, x=4

Answer:

2018, and 2004.

Step-by-step explanation:

do the math "using Your heads".

Answer:

$3.36

Step-by-step explanation:

to find out what the price is after an increase of 3.5%, set it as 103.5% of the original price and then we convert the percent to a decimal (divide by 100)

so:

$3.25 x 103.5% =

3.25 x 1.035 = $3.36

Answer:

$3.36

Step-by-step explanation:

0.11375(3.5% of $3.25) + 3.25 = 3.36375

round to the hundredth since it money and your answer is #3.36

The price the school district pays for each typewriter is $106.56.

A quantity discount is the discount given for bulk purchases. It reduces the purchase price of a good or service.

Total purchase price of the typewriters before the discount = (50 x 129.95) = 6,497.50

Total purchase price of the typewriters after the discount = (100 - 18) x 6,497.50

= $5,327.95

Purchase price of one typewriter = $5,327.95 / 50 = $106.56

To learn more about how to calculate discounts, please check: https://brainly.com/question/26061308

Answer:

it would be 18.6 inches because the diaganol across a screen is more than the width by a little bit

Answer:

Step-by-step explanation:

[tex]tan \ 32 = \dfrac{opposite \ side}{adjacent side}\\\\\\0.6 = \dfrac{GF}{HF}\\\\0.6=\dfrac{11}{HF}\\\\\\0.6*HF = 11\\\\HF = \dfrac{11}{0.6}[/tex]

HF = 18.3

[tex]Sin \ 32 =\dfrac{opposite \ side}{hypotenuse}\\\\\\0.5=\dfrac{GF}{GH}\\\\\\0.5=\dfrac{11}{GH}\\\\\\0.5*GH=11\\\\GH=\dfrac{11}{0.5}\\\\\\GH = 22[/tex]

∠G = 180 - (90 +32)

     = 180 - 122

    = 58°

Answer:

0

Step-by-step explanation:

it's straight

Answer:

0

Step-by-step explanation:

because it does not rise or fall so it has no slope.

Please mark brainlest

Answer:

x = -5/4

Step-by-step explanation:

"3 more than a number" is 3 + x

The product of 3+x and 8 is (3+x)(8)

Solve:

-Chetan K