A convenience store sells a coffee mug that comes

with a special price for refills using the mug. The

equation C = 2.3r + 6.5 represents the cost C, in

dollars, of the mug and r refills. What is the cost of

the mug?

Answers

Answer 1

Answer:

The cost of the mug is of $6.50.

Step-by-step explanation:

The cost of the mug and r refills is given by the following equation:

\(C(r) = 2.3r + 6.5\)

Cost of the mug:

The cost of the mug is found when no refills are bought, that is, C when \(r = 0\), which is \(C(0)\)

\(C(0) = 2.3*0 + 6.5 = 6.5\)

The cost of the mug is of $6.50.


Related Questions

I mark as brainliest ​

I mark as brainliest

Answers

Answer:

.1

Step-by-step explanation:

Answer:

Point Q is represented by the ordered pair (-2,9)

rechna notices her car driving at 40km/hr and knows that at that speed she will reach home in 2 hours if she wants to reach her home only in an half hour by what percentage does she need to increase her speed choose the correct answer 50%,100%,200%,400%

Answers

To reach her home in half an hour, she needs to double her speed twice, which is equivalent to a 200% increase in speed. Therefore, the correct answer is 200%.

What is speed?

Speed is a measure of how quickly an object or person moves from one point to another. It is usually expressed in terms of distance traveled over time, for example, miles per hour or kilometers per hour.

To calculate this, we need to find the time taken for her to reach her home if her speed is doubled.

If her initial speed is 40 km/hr, then by doubling her speed, she will be travelling at a speed of 80 km/hr.

By travelling at this speed, she can reach her home in half an hour i.e. 30 minutes.

Therefore, the time taken to reach her destination by doubling her speed is 30 minutes.

The time taken to reach her destination while travelling at her initial speed is 2 hours.

To calculate the percentage increase in speed, we have to find the ratio of the time taken to reach her destination when the speed is doubled to the time taken to reach her destination when the speed is not doubled.

Therefore, the percentage increase in speed

= (30/120) x 100

= 25%.

Since she needs to double her speed to reach her home in half an hour, the percentage increase in speed required is 100%.

To reach her home in half an hour, she needs to double her speed twice, which is equivalent to a 200% increase in speed.

Therefore, the correct answer is 200%.

For more questions related to percentage

https://brainly.com/question/24877689

#SPJ1

A clock was reading the time accurately on Friday at noon. On Monday at 6pm the clock was running late by 468 seconds. On average, how many seconds did the clock skip every 30 minutes?

3
4
5
6

Answers

The clock skipped 3 seconds every 30 mins (on average)

The number of times that the clock was skipping every 30 minutes from Friday noon to Monday 6 pm is; 3 seconds

What is the clock skip reading?

We know that from time conversion;

1 day = 24 hours

1 hour = 60 minutes = 2 × (30 minutes)

1 day = 24 hours × 2 × (30 minutes)

1 day = 48 × (30 minutes)

Thus, there are 48 times of 30-minutes in a day. However on Friday, we start counting at noon, which is half of the day.

Thus, on Monday, the mark is only up to 6 pm, which is three-fourths of the day. Thus;

Friday = 48 × (3/4)  = 24

Saturday = 48

Sunday = 48

Monday = 48 × (3/4)  = 36

Total times = 24 + 48 + 48 + 36 = 156

Thus, it means that there was 156 times of  30-minutes that have passed during the time period.

x = 468 seconds ÷ 156

x = 3 seconds  

Therefore, the clock was skipping 3 seconds every 30 minutes from Friday noon to Monday 6 pm.

Read more about Least common multiple at; https://brainly.com/question/10749076

Please help, test due in 1 hour! I will give brainliest!

Please help, test due in 1 hour! I will give brainliest!

Answers

i think it’s a sphere
sorry if it’s wrong

Your total monthly bill (T
) from the Electric and Gas Company depends on how much electricity and how much gas you use each month. For every kilowatt hour of electricity (k
) you use, you are charged $0.25
and for each therm (t
) of gas used you are charged $0.97
.

Which of the following equations represents the relationship between electricity and gas used and your bill?

Answers

Answer:

       The equation representing the relationship between Electricity and  Gas used, and your Bill is:

      T  =  0.25 * k + 0.97 * t

Step-by-step explanation:

        Make a plan:

We need to find the equation that represents the relationship between the total monthly bill (T), The Kilowatt Hours of Electricity used (k), and the Terms of Gas used (t).

T  =  0.25  *  k  +  0.97  *  t

Solve the problem:

1 - Write the Equation for the cost of Electricity:

        0.25 * k

2 - Write the Equation for the Cost of Gas:

       0.97 * t

3 - Combine the Equations to Represent the total Monthly Bill (T):

       T  =  0.25 * k + 0.97 * t

Draw the Conclusion:

Hence,  The equation representing the relationship between Electricity and  Gas used, and your Bill is:

       T  =  0.25 * k + 0.97 * t

I hope that helps!

The local farmers' market usually sells potatoes for $0.90 per pound. on fridays, they sell potatoes at a 30% discount. the market also sells cantaloupes for $3.50 each. which of the following represents the total cost, c , if a customer buys 2 cantaloupes and p pounds of potatoes on a friday?
A. c = 0.63p + 7
B. c = 0.9p + 7
C. c = 0.3p +3.5
D. c = 0.9p + 3.5

Answers

If  a customer buys 2 cantaloupes and p pounds of potatoes on friday from the local farmers' market, the total cost equation would be A. C = 0.63p + 7.

What is equation (in math)?

Equation is a mathematical statement that is made up of two expressions connected by an equal sign. Equation also often contain an algebra. Algebra is used in maths when you do not know the exact number in a calculation.

Based from the question above, we don't know the exact number of potato that the customer bought. We only know that the customer buys p pounds of potatoes.

Potato price = $0.90

on Friday, the potato price is (30% discount)

= 0.90 - (0.90 * 30%)

= $0.63

Since the customer buys for p pounds of potatoes, therefore the total cost of potatoes

= $0.63 * p

= 0.63p

From the question above, we know that the customer buys 2 cantaloupes.

cantaloupes price = $3.50 each

The total cost for cantaloupes

= 2 * $3.50

= $7

Now, let's put it into the total cost equation to find the answer from the multiple choice.

Total cost (c) = 0.63p + 7

Therefore, the answer is A.

Learn more about equation (in math) https://brainly.com/question/2228446

#SPJ4

javier said I have to get atleast an 75 on the test to keep my A in the class if T represents javier's score on the test which inequality matches his statement

Answers

Answer:

T ≥ 75

Explanations:

Javier score = T

Since Javier has to score at least 75 to keep his A, it means he has to score 75 and above.

This means that Javier's score (T) must be greater than or equal to 75

This can be represented mathematically as:

T ≥ 75

Simplify the variable expression by evaluating its numerical part, and enter
your answer below.
(48-17) - w
Answer here
SUBMIY

Answers

The simplified version of the expression would be 31-w

The numerical part of the expression given is :

48-17

Simplifying using Subtraction operation:

48-17 = 31

Adding the alphabetical part :

31 - w

Therefore, the simplified form of the expression is 31-w.

Learn more on equations :https://brainly.com/question/2972832

#SPJ1

what is the slope of the line graphed below​

what is the slope of the line graphed below

Answers

Answer:

-1/2

Step-by-step explanation:

Slope = rise/run

rise = -1

run = 2

Therefore, the slope = -1/2

Person 1, person 2, and person 3 paid a total of $120 for lunch. They split the money respectively using the ratio 1:2:3. How much more did person 3 pay than person 2?

Answers

Person 3's payment exceeded person 2's payment by $20.

To find out how much more person 3 paid than person 2, we need to calculate the amounts each person paid based on the given ratio and then compare their payments.

The ratio given is 1:2:3, which means that person 1 gets 1 part, person 2 gets 2 parts, and person 3 gets 3 parts of the total amount.

Step 1: Calculate the total number of parts in the ratio.

1 + 2 + 3 = 6

Step 2: Determine the value of one part.

$120 (total amount) divided by 6 (total number of parts) = $20

Step 3: Calculate the payments for each person based on the ratio.

Person 1: 1 part * $20 = $20

Person 2: 2 parts * $20 = $40

Person 3: 3 parts * $20 = $60

Therefore, person 3 paid $60, while person 2 paid $40. To find out how much more person 3 paid than person 2, we subtract the amount person 2 paid from the amount person 3 paid:

$60 - $40 = $20

Hence, person 3 paid $20 more than person 2.

For more question on payment visit:

https://brainly.com/question/27926261

#SPJ8

Verónica Ana y Luis pintan una barda y les pagan 300 cuánto dinero debería recibir cada quien

Answers

Si Verónica, Ana y Luis están pintando una barda y se les paga un total de 300 unidades monetarias (por ejemplo, dólares, pesos, etc.), para determinar cuánto dinero debería recibir cada uno, necesitamos más información sobre cómo se distribuye el trabajo entre ellos.

Si los tres contribuyen de manera equitativa y realizan la misma cantidad de trabajo, podrían dividir el pago de manera igualitaria. En ese caso, cada uno recibiría 100 unidades monetarias (300 dividido entre 3).

Sin embargo, si uno de ellos realiza más trabajo o tiene una mayor responsabilidad en la tarea, podría ser justo que reciba una porción mayor del pago. En ese caso, la distribución de los 300 unidades monetarias dependerá de un acuerdo previo entre ellos sobre cómo se divide el pago en función de la cantidad o calidad del trabajo realizado.

Es importante tener en cuenta que la asignación exacta de dinero puede variar dependiendo de las circunstancias y el acuerdo al que lleguen Verónica, Ana y Luis.

Two friends are standing in opposite corners of a rectangular courtyard the dimensions of the courtyard or 12' x 25' how far apart are the friends

Two friends are standing in opposite corners of a rectangular courtyard the dimensions of the courtyard

Answers

Answer:

B 27.73

Step-by-step explanation:

Use the Pythagorean theorem. It easiest to think of the distance between the two friends as a triangle in the rectangle. One side is 12ft and the other is 25ft.

12^2+25ft^2=769

The square root of 769 is 27.73

what is 16 - 2t = t + 9 +4t

Answers

Answer:

t=1

Step-by-step explanation:

16-2t = t + 9 +4t

combine like terms

16-2t = 5t + 9

add 2t to both sides

16-2t+2t = 5t+9+2t

combine like terms

16=7t+9

subtract 9 from both sides

16-9=7t+9-9

combine like terms

7=7t

divide both sides by 7

t=1

Answer:

16=t+9+4t+2t

16=9+7t

16-9=7t

7=7t

t=1

Celine measured the high school and made a scale drawing. The scale she used was
1 millimeter: 10 meters. If the actual length of the parking lot is 120 meters, how long is the
parking lot in the drawing?
millimeters

Answers

The parking lot would be 12 millimeters in the drawing

Write the equation of a line with a slope of 1 and a y-intercept of 3. Do not use spaces in your response. *

Answers

Answer:

Y=X+3

Step-by-step explanation:

5x + 4 + 8x simplified

Answers

Answer:

4 + 13x

Step-by-step explanation:

add 8x and 5x which makes 13x. Since 4 doesn't have variable x in it then you can't add it to 13x.

Question 1: What are the solutions to the following graph, and what is the equation of the axis of symmetry?
Question 3: What are the coordinates of the vertex of the graph, and is it a minimum or a maximum?
Question 4: Can a parabola have both a minimum and a maximum point? Explain.
Question 5: Look at the following quadratic function. What is the domain of this function?
A) -∞ B) -5 C) -2 D) -∞ Question 6: Look at the following quadratic function. What is the range of this function?
A) -2 B) -5<=y<∞
C) -∞ D) -∞

Question 1: What are the solutions to the following graph, and what is the equation of the axis of symmetry?Question
Question 1: What are the solutions to the following graph, and what is the equation of the axis of symmetry?Question
Question 1: What are the solutions to the following graph, and what is the equation of the axis of symmetry?Question
Question 1: What are the solutions to the following graph, and what is the equation of the axis of symmetry?Question
Question 1: What are the solutions to the following graph, and what is the equation of the axis of symmetry?Question

Answers

Q1: Solutions: x = 2 and x = 4, Axis of symmetry: x = 3.

Q3: (x, y) = (-3, 5).

Q4: A parabola cannot have both a minimum and maximum point because it is only bounded by its vertex.

Q5: \(x \in \mathbb{R}\)

Q6: \(y \in [-5, + \infty)\)

How to analyze second order polynomials graphically

Graphically speaking, second order polynomials are represented by parabolas. In this question we must interpret the graphs to find all the required information.

Question 1

The solutions to the graph are those values of x such that the graph goes through the x-axis and the axis of symmetry is a line that goes through the vertex ot the parabola and is perpendicular to the width of the curve.

Thus, the solutions to the graph are x = 2 and x = 4 and the axis of symmetry is x = 3. \(\blacksquare\)

Question 3

The vertex is the extreme point of a parabola, which may be a minimum or a maximum, but never both. The vertex of the parabola is located at (x, y) = (-3, 5). \(\blacksquare\)

Question 4

A parabola cannot have both a minimum and maximum point because it is only bounded by its vertex. \(\blacksquare\)

Question 5

The domain of the function is defined by the set of x-values such that the function exists. Thus, the domain of the quadratic function is \(x \in \mathbb{R}\). \(\blacksquare\)

Question 6

The range of the function is defined by the set of y-values such that the function exists. Thus, the range of the quadratic function is \(y \in [-5, + \infty)\).  \(\blacksquare\)  

To learn more on parabolas, we kindly invite to check this verified question: https://brainly.com/question/4074088

Determine the following ratio

Determine the following ratio

Answers

Using relations in a right triangle, the secant of angle θ is given by:

D. 5/4.

What are the relations in a right triangle?

The relations in a right triangle are given as follows:

The sine of an angle is given by the length of the opposite side to the angle divided by the length of the hypotenuse.The cosine of an angle is given by the length of the adjacent side to the angle divided by the length of the hypotenuse.The tangent of an angle is given by the length of the opposite side to the angle divided by the length of the adjacent side to the angle.

Using the Pythagorean Theorem, the hypotenuse of the triangle is given as follows:

h² = 9² + 12²

h = sqrt(9² + 12²)

h = 15.

The secant of an angle is 1 divided by the cosine, hence:

cos(θ) = 12/15 = 4/5.sec(θ) = 5/4.

Which means that option D is correct.

More can be learned about relations in a right triangle at https://brainly.com/question/26396675

#SPJ1

Please could you show the working out as well:)

Please could you show the working out as well:)

Answers

Answer:

( \(\frac{6}{7}\) - \(\frac{1}{3}\) ) is closer to \(\frac{1}{2}\)

Step-by-step explanation:

\(\frac{2}{15}\) + \(\frac{1}{3}\) = \(\frac{2 + 5}{15}\) = \(\frac{7}{15}\)

\(\frac{6}{7}\) - \(\frac{1}{3}\) = \(\frac{18-7}{21}\) = \(\frac{11}{21}\)

\(\frac{7}{15}\) , \(\frac{1}{2}\) , \(\frac{11}{21}\)

LCD (2, 15, 21) = 210

\(\frac{98}{210}\) , \(\frac{105}{210}\) , \(\frac{110}{210}\)

105 - 98 = 7

110 - 105 = 5 ⇒ \(\frac{11}{21}\) is closer to \(\frac{1}{2}\) ⇒ ( \(\frac{6}{7}\) - \(\frac{1}{3}\) ) is closer to \(\frac{1}{2}\)

GIVING BRAINLIEST TO WHOEVER HAS A GOOD EXPLANATION AND ANSWER

GIVING BRAINLIEST TO WHOEVER HAS A GOOD EXPLANATION AND ANSWER

Answers

Answer:

-1/5>-10/4

Step-by-step explanation:

In the negatives, If you take away the negative the lower number is more.

Think about a number line, if you are at -1/5, it means that you are 1/5 away from 0. If you are at -10/4, It means that you are 10,4 away from 0.

In conclusion, -1/5>-10/4

pls mark Brainliest

For a moving object, the force acting on the object varies directly with the object's acceleration. When a force of 35 N acts on a certain object, the acceleration of the object is 5 m/s^2. If the force is changed to 49 N what will be the acceleration of the object?

Answers

Answer:The acceleration that an objects gains is given by the mass of the object.

If the acceleration of the object becomes 5 m/s² the force is 15 N.

Reason:

The given parameters are;

The acting force ∝ The acceleration of the object.

The acceleration given by an amount of force, F, of 18 N = 6 m/s²

Required:

The force acting on the object acceleration, a, is 5 m/s².

Solution:

According to Newton's Second Law of motion, we have;

F = m·a

Where;

m = The mass of the object

Therefore, we have;

From the conditions, F = 18 N, when a = 6 m/s², we have, the mass of the

given object is given as follows;

The force acting when the the acceleration, a = 5 m/s², is therefore;

F = 3 kg × 5 m/s² = 15 N

If the acceleration of the object becomes 5 m/s² the force is 15 N.

Step-by-step explanation:

please answer this question i need help

please answer this question i need help

Answers

Answers:
1) Equivalent
2) Equivalent
3) Not equivalent

Explanation:
When there is a plus sign or nothing in front of a number, it means it’s positive.
Example:
3x+6
Both 3x and 6 are positive.

When there is a negative or minus sign in front of a number, it means it’s negative.
Example:
6-2
2 is negative and 6 is positive.

We can rearrange numbers in equations just as long as we also carry whether or not they are positive or negative.
Example:
3x+9-16 can be rewritten as:
-16+9+3x
Notice how the minus sign in front of the 16 is carried with the 16.

In the expressions in your picture, the first two are equal because the numbers have been rearranged properly. However, for the last problem:

6z-2z+4

Notice how 6z and 4 are positive and -2z is negative.

When they rearranged the expression, 6z became positive and 2z became negative, which shouldn’t have happened.

I hope this helps! Please comment if you have any questions.

Given the scenario in #2 for Kevin, how much interest will he pay over the life of the
mortgage?
A. $62,283.60
B. $24,337.80
C. $28,632.60
D. $64,312.60

Answers

the correct answer is a

how many odd _2-digit positive integers can be written using the numbers 2,4,5, and 8?​

Answers

Answer:

4 different odd integers:  25, 45, 55, 85

Step-by-step explanation:

Hello, can you help me with the attached question? Thank you for looking at my question.

Hello, can you help me with the attached question? Thank you for looking at my question.

Answers

From the diagram we get that the given triangle is an isosceles triangle, then, its interior angles are 30°, x°, and x°.

Now, recall that the interior angles of a triangle add up to 180 degrees, then we can set the following equation:

\(30\degree+x\degree+x\degree=180\degree\text{.}\)

Solving the above equation for x we get:

\(\begin{gathered} 30+2x=180, \\ 30+2x-30=180-30, \\ 2x=150, \\ \frac{2x}{2}=\frac{150}{2}, \\ x=75. \end{gathered}\)

Answer: First option.

woman bought 1.8 kg of chicken and 1.6 kg of meat. The chicken cost N5.40 and the meat cost #6.40. If she had bought 2.4 kg of chicken and 2 kg of meat, how much would she have had to pay?

Answers

The amount the women would pay for 2.4 kg of chicken and 2 kg of meat in total is $15.2

What is the unit price?

The meaning of unit price is a price quoted in terms of so much per agreed or standard unit of product or service

Given that, a woman bought 1.8 kg of chicken and 1.6 kg of meat. The chicken cost $5.40 and the meat cost $6.40,

We need to find, if she had bought 2.4 kg of chicken and 2 kg of meat, how much would she have had to pay,

To find the same, we will first find the unit price of each,

Unit price = total price / total quantity

Since, 1.8 kg of chicken costs $5.40,

Therefore, 1 kg will cost = 5.40 / 1.8 = $3

Similarly,

If 1.6 kg of meat costs $6.40,

Therefore, 1 kg will cost = 6.40 / 1.6 = $4

Now, to find the cost of 2.4 kg of chicken and 2 kg of meat, we will multiply the unit prices to the required quantities,

Therefore,

2.4 kg of chicken will cost = 2.4 x 3 = $7.2

2 kg of meat will cost = 2 x 4 = $8

In total, she had to pay = 8+7.2 = $15.2

Hence, the amount the women would pay for 2.4 kg of chicken and 2 kg of meat in total is $15.2

Learn more about unit prices, click;

https://brainly.com/question/10503561

#SPJ1

Write the trigonometric ratio as a simplified fraction.
10. sin B
C9
A
C
6
15 C
B
11. cos A
12. tan A
10.
11.
12.

Write the trigonometric ratio as a simplified fraction.10. sin BC9AC615 CB11. cos A12. tan A10.11.12.
Write the trigonometric ratio as a simplified fraction.10. sin BC9AC615 CB11. cos A12. tan A10.11.12.

Answers

The value of the trigonometric ratios  are;

sin A = 2/5

cos A = 3/5

tan A = 2/3

How to determine the ratios

It is important to note that there are six different trigonometric identities and their ratios.

We have;

sine cosinetangentcotangentsecantcosecant

From the diagram shown, we have;

sin θ = opposite/hypotenuse

cos θ = adjacant/hypotenuse

tan θ = opposite/adjacent

Then,

sin A = 6/15 = 2/5

cos A = 9/15 = 3/5

tan A = 6/9 = 2/3

Learn about trigonometric ratios at: https://brainly.com/question/24349828

#SPJ1

The value of the trigonometric ratios  are;

sin A = 2/5

cos A = 3/5

tan A = 2/3

How to determine the ratios

It is important to note that there are six different trigonometric identities and their ratios.

We have;

sine cosinetangentcotangentsecantcosecant

From the diagram shown, we have;

sin θ = opposite/hypotenuse

cos θ = adjacant/hypotenuse

tan θ = opposite/adjacent

Then,

sin A = 6/15 = 2/5

cos A = 9/15 = 3/5

tan A = 6/9 = 2/3

Learn about trigonometric ratios at: https://brainly.com/question/24349828

#SPJ1

for what value of 0 is cot0 undefined?

Answers

The function cotangent (cot) is undefined when the angle 0 is a multiple of π (pi) or 180 degrees, plus or minus any integer multiple of π/2 (pi/2).

In other words, cotangent is undefined when the angle 0 is equal to:
0° + 180°n, where n is an integer, or
π + πn/2, where n is an integer.

Therefore, there are infinitely many values of 0 for which cotangent is undefined.

TAKE MY POINTS pleaseeee

TAKE MY POINTS pleaseeee

Answers

Answer:

156 M

Reasoning you add How far He has walked from his starting point

Step-by-step explanation:

Answer: 156 m here u go

Find the equation of the linear function represented by the table below in slope-
intercept form.

Find the equation of the linear function represented by the table below in slope-intercept form.

Answers

Answer:

y=2x+6

Step-by-step explanation:

Other Questions
mr hassell came home to find that each of the 6 kit kat bars he brought had 1 bar eaten. They each had 3/4 in it.How many bars of kitkat are there in total. the lumbar curve is the secondary curve that develops when the child begins to crawl. group of answer choices true false sorry I find this confusing please help no links :( Which of the following statements is NOT a valid reason why scientists create replicable(able to be copied or replicated)experiments?A .to start over with a new experiment B .to validate results with other scientists C .to discover errors in previous experiments D .to reach the same results of previous experiments Twice the sum of a number and 4 which section of the tcp/ip five-layer network model contains the data the application wants to send? 1 point the payload section of the ip datagram the payload section of the ethernet frame the header of the ethernet frame the payload of the tcp segment l Jtudell conducted the following reactions: Nis)+Pb black crystals formed and the Ni solid disintegrated Ni(s)+Fe No rxn a. Write the net ionic equations for both of these reactions, gving the "possible"F the second reaction. b. Rank the three metals: Ni, Pb, and Fe based on these 2 reactions. c. Where would Ni be placed on your activity series? 6. A student conducted the following reactions: Ni(s)+Co dark crystals formed and the Ni solid disintegrated Co(s)+N dark crystals formed and the Co solid disintegrated Explain why the student should have immediately known that something was wrong a repeated the tests. Conclusion: Summarize the purpose of the lab, including what an activity series shows. List your activity series. Discuss discrepancies between your activity series and the correct activity these metals. Suggest improvements to the lab. expo What is the answer to my question? List the areas of improvement you identified as a result of reviewing your performance.Examples may be "I discovered I need to catch up on overdue lessons in English" or "Idecided my math grade needs to go from a C to a B". I would liked to have asked the following questions of Jen,Rebecca and Chris:Jen: Do you feel supported by your supervisor? If so, how? If not,why? What could I do as your new GM to make you feel m Find the area of the shape shown below.13377Can you pls help this is due soon 13 gallons is the same as how many liters?Hint: 1 gal 3.8 L 4. US Mkt. for used cars. The change in the price of new cars affects supply/demand of used cars because Show the effect of the change in the price of new cars. Equilibrium price_ quantity____ equilib Imagine that someone from another planet is visiting Earth. They see aeroplanes and birdsmoving through the sky,Explain to the visitor why birds are alive and aeroplanes are not alive, even though they seem toshare some of the characteristics of living things You measure an angle of 21. 1 when the light passes through a grating with 610 lines per mm. what is the wavelength of the light? Which number added to 38 will result in a sum of 0? A- |38|B- |-38|C- 1/38D- -38 Effects of acid rain on soil PH. Acid rain is formed by the combination of water vapor in clouds with nitrous oxide and sulfur dioxide, which are among the emissions products of coal and oil combustion. To determine the effects of acid rain on soil pH in a natural ecosystem, engineers at the University of Florida's Institute of Food and Agricultural Sciences irrigated experimental plots near Gainesville, FL. They measured the acidity of the soil at three different soil depths: 0-15, 15-30, and 30-46 centimeters. The resulting soil pH values are shown in the table given below. Answer the following questions accordingly.Soil Depth, cm pH values0-15 5.33 5.07 5.11 5.01 5.0315-30 5.27 5.33 5.50 5.5330-46 5.37 5.80 5.60 5.55 5.40 a. Is there a difference in mean PH values obtained from different soil depths? b. Are the measurements from the two shallow levels (0-15 and 15-30) on average equal to the deepest level (30-46)? Use Scheff's method to test for this hypothesis. c. Test the following hypotheses: (1) H: H = M2, (2) H. : 12 = 13. What do you conclude? Can you conclude which group is different from the rest? As Sandeep Singh, librarian, Modern Public school. Write a letter of order in about 100-150 words to DC books to Ernakulam. Placing an order for various books for the school library. What are some topics and ideas that are evident in the story "Harrison Bergeron"? (Select all that apply. )the " d u m b i n g down" of America prevalence of television in American life becoming accustomed to oppressionsocial problems solved by political meanseffort vs. Achievementequality of opportunity vs. Equality of outcomeintellectual equality Is it worth it to rebel if nothing comes of the rebellion?involvement of federal government in everyday life continue the fragment "Liked clothes that were half one color and half another"