solve please
A
B
c
d

Answer:

hi

Step-by-step explanation:

Answer:

see attached image

Step-by-step explanation:

Step-by-step explanation:

x = 2 , y = 7

ans, y = 11 - 2x and 4x - 3y = -13

→ 7 = 11 - 2(2) → 7 = 11 - 4 → 7 = 7

→ 4(2) - 3(7) = -13 → 8 - 21 = -13 → -13 = -13

x = 5 , y = 2

→ 2x + y = 12 and x = 9 - 2y

as, 2(5) + 2 = 12 → 10 + 2 = 12 → 12 = 12

x = 9 - 2y → 5 = 9 - 2(4) → 5 = 9 - 4 → 5 = 5

x = 3 , y = 5

ans. 2x + y = 11 , x - 2y = -7

2(3) + 5 = 11 → 6 + 5 = 11 → 11 = 11

3 - 2(5) = 7 → 3 - 10 = 7 → 7 = 7

x = 7 , y = 3

ans. x + 3y = 16 and 2x - y = 11

7 + 3(3) = 16 → 7 + 9 = 16 → 16 = 16

2(7) - 3 = 11 → 14 - 3 = 11 → 11 = 11

hope this answer helps you dear....take care may u have a great day ahead!

Answer:

123$

Step-by-step explanation:

$10.25 × 12

Answer:

She made $123.

Step-by-step explanation:

10.25 times 12 = 123

Answer:

2,11

Step-by-step explanation:

y=3×+5 3×2=6+5=11

Climate change is a pressing problem that requires immediate action. The case study of the Great Barrier Reef and the statistics regarding rising temperatures and increasing extreme weather events clearly demonstrate the severity and increasing nature of this problem. It is essential for individuals, communities, and governments to come together to mitigate climate change and protect the planet for future generations.

Problem: Climate Change

Explanation: Climate change is a global issue that needs to be urgently addressed. Rising temperatures, extreme weather events, and melting glaciers are just a few examples of the detrimental effects of climate change. It is crucial to understand the severity of this problem through a case study.

Case Study: In recent years, the Great Barrier Reef, located in Australia, has experienced significant bleaching events due to warmer ocean temperatures caused by climate change. Coral bleaching occurs when coral polyps expel the algae living in their tissues, leading to the coral turning white and eventually dying. This case study highlights the devastating impact of climate change on one of the world's most biodiverse ecosystems.

Proof the problem is increasing - Statistics:

1. According to the National Aeronautics and Space Administration (NASA), the Earth's average surface temperature has risen by about 1.1 degrees Celsius since the late 19th century, with most of the warming occurring in the past few decades.

2. The Intergovernmental Panel on Climate Change (IPCC) reports that the frequency and intensity of extreme weather events, such as hurricanes, heatwaves, and droughts, have been increasing over the past few decades.

3. The World Wildlife Fund (WWF) states that since 1970, global wildlife populations have declined by an average of 68%, primarily due to habitat destruction, pollution, and climate change.

Conclusion: Climate change is a pressing problem that requires immediate action. The case study of the Great Barrier Reef and the statistics regarding rising temperatures and increasing extreme weather events clearly demonstrate the severity and increasing nature of this problem. It is essential for individuals, communities, and governments to come together to mitigate climate change and protect the planet for future generations.

To know more about temperatures visit

https://brainly.com/question/7510619

#SPJ11

The number of distinct initial possible pairings is determined by the formula (n/2) * ((n-2)/2) * ((n-4)/2) * ... * 1, where the number of terms in the product is (n-1)/2.

In a single-elimination ping-pong tournament, each player gets to play against every other player once. It is a type of tournament in which players are eliminated after losing once until there is only one winner.

The total number of games that need to be played in such a tournament is (n-1), since each game eliminates one player from the tournament.

As a result, we know that the number of games played in a single-elimination ping-pong tournament with n players is (n-1).

The possible pairings for the first game in the tournament are n/2, since the first player may be paired with any of the remaining n-1 players, the second player may be paired with any of the remaining n-2 players, and so on.

Then we may have (n-2)/2 possible pairings for the second game, (n-4)/2 possible pairings for the third game, and so on.

In general, we can see that there are (n-2k)/2 possible pairings for the k-th game.

Because a distinct tournament bracket is generated by each of these distinct initial pairings, the number of distinct initial pairings resulting in a distinct tournament bracket is given by:

(n/2) * ((n-2)/2) * ((n-4)/2) * ... * 1,

where the number of terms in the product is (n-1)/2

Since a distinct tournament bracket is generated by each of these distinct initial pairings, this formula calculates the number of distinct initial possible pairings resulting in a distinct tournament bracket.

learn more about distinct tournament bracket here:

https://brainly.com/question/30425718

#SPJ11

Answer:

leave at  1:30 PM

Step-by-step explanation:

10 mph 40 hours 6600/1200 5.5 hr  40/15 2 hr 40 mins 5.5 -.5 =

After two hours there at the meeting place, the helicopter must depart at 1:30 pm to join the boat.

Speed is the rate an object travels in a predetermined period of time.

Its speed is expressed in km/h. 

As per the given information in the question,

If the boat goes to the station ,

Speed of the boat = 10mph

it will take 400/10 = 40 hours.

The helicopter has, 6600 lbs of fuel.

It will take 30 minutes to clean the fisherman and an additional hour to get enough fuel.

1.5 × 1200 = 1800 lbs of fuel.

So, the amount of fuel helicopter now has

6600 - 1800

= 4800 lbs of fuel.

This will allow it to fly for 4 hours as:

4800 lbs/1200 lbs per hour, It can only travel at 150 mph for two hours one way.

= 300 miles distance from the station.

The boat is available at 400 miles, and its maximum flight time at 150 mph is two hours going one way, which is 100 miles from where it is now,

So,

100/10 = 10 hours, the journey to the meeting location will take the boat ten hours.

To reach the boat, which will require 10 hours, the chopper must take off after 8 hours since it will take 2 hours.

So 8 hours of time from 5:30 am will be equal to 1:30 pm.

To know more about Speed:

https://brainly.com/question/28224010

#SPJ2

Your question seems incomplete, probably the complete question is:

A crewman on a fishing boat was injured and needs to be treated in a hospital right away. You are with a Coast Guard station nearest to the boat, but you are 400 miles away. The boat travels at a rate of 10 mph. It is 5:30 A.M. You have a helicopter that can hold 6600 lbs. of fuel, consumes 1200 pounds of fuel an hour, and travels 150 mph. However, you need to save a minimum of 1 hour worth of fuel for landing problems at the Coast Guard station, and you need to have 30 minutes’ worth of fuel to remove the crewman from the boat. You have to create a plan for extracting the crew member. When would you leave and why? Fully explain your answer.

Three strategies that implement to encourage the use of BEVs are incentives, Infrastructure and Regulations. The cost of gasoline per mile for an ICE vehicle is $0.016 per mile.

Incentives: The federal government could offer financial incentives such as tax credits, rebates, or grants to consumers who purchase BEVs. This would make BEVs more affordable and help to offset the higher upfront cost of these vehicles.

Infrastructure development: The federal government could invest in the development of charging infrastructure for BEVs, such as public charging stations. This would help to alleviate range anxiety and make BEVs more convenient and practical for consumers.

Regulations: The federal government could implement regulations that incentivize or require automakers to produce more BEVs. This could include emissions standards that are more favorable to BEVs, or mandates for automakers to produce a certain percentage of their vehicles as electric.

To calculate the cost of gasoline per mile for an ICE vehicle with fuel efficiency of 235 miles per gallon and gasoline cost of $3.75 per gallon, we divide the cost of gasoline by the fuel efficiency:

Cost per mile = $3.75 / 235 miles per gallon

Cost per mile = $0.016 per mile

To learn more about cost click on,

https://brainly.com/question/24357861

#SPJ4

Answer: B: 4

Step-by-step explanation: just took the test

The seventh line will be having 4 marbles which can be determined by taking the given data as an arithmetic progression with the first term as 1 and the common difference -1. Hence, option B is the right choice.

An arithmetic progression (A.P.) is a series where every term is the sum of the previous term and a common difference.

The first term of an arithmetic progression is denoted by a, and its common difference is denoted by d. The n-th term of an arithmetic progression can be found using the formula

n-th term = a + (n-1)d.

We are given a pattern, starting with 10 marbles and every consecutive line has 1 less marble than the previous line. We are asked to find the number of marbles in the 7th line.

This can be seen as an arithmetic progression with the first term a = 10, and the common difference d = -1.

We are asked to find the number of marbles in the 7th line. This can be taken as the 7th term of the given arithmetic progression.

n-th term = a + (n-1)d

or, 7th term = 10 + (7-1)(-1) = 10 + 6(-1) = 10 - 6 = 4.

∴ The seventh line will be having 4 marbles which can be determined by taking the given data as an arithmetic progression with the first term as 1 and the common difference -1. Hence, option B is the right choice.

Learn more about an arithmetic progression at

https://brainly.com/question/6561461

#SPJ2

To find the points of discontinuity for the rational function y = (x - 8)/(x^2 + 6x - 7), we need to identify the values of x that make the denominator zero, as division by zero is undefined.

Setting the denominator equal to zero:

x^2 + 6x - 7 = 0

Factoring the quadratic equation:

(x + 7)(x - 1) = 0

This gives us two solutions: x = -7 and x = 1.

Therefore, the points of discontinuity for the rational function are x = -7 and x = 1.

To describe the vertical asymptotes and holes, we need to examine the behavior of the function around these points.

For x = -7:

When x approaches -7 from the left side, the function approaches negative infinity.

When x approaches -7 from the right side, the function approaches positive infinity.

This indicates a vertical asymptote at x = -7.

For x = 1:

When x approaches 1 from the left side, the function approaches negative infinity.

When x approaches 1 from the right side, the function approaches positive infinity.

This also indicates a vertical asymptote at x = 1.

Based on this analysis, there are two vertical asymptotes at x = -7 and x = 1. There are no holes in the graph.

Regarding the rational function y = (-4x^6 + 6x + 3)/(8x^6 + 9x + 3), to find the horizontal asymptote, we examine the degrees of the numerator and denominator polynomials.

Since the degree of the numerator is greater than the degree of the denominator, there is no horizontal asymptote.

Therefore, the rational function y = (-4x^6 + 6x + 3)/(8x^6 + 9x + 3) does not have a horizontal asymptote.

Learn more about Rational function here -: brainly.com/question/19044037

#SPJ11

Answer:

uneven

Step-by-step explanation:

Answer

the answer above me is incorrect it would be even

Step-by-step explanation:

c = 4 times h

Linear equation: 1.5c + 2h = 360

Hello!

Your answer should be..

c=4h     ( as there are 4 hours )

1.5c+2h=360

c is 1.50 and h is 2.00 so you must add them to reach 360

Hope this helps! :)

Answer:

i think the function of g i can sort of tell that it is a right angle sort of. whoch a right angle is 90 *? and the value of b might be an obtuse angle which i think is equal to 180*? but im not for certain... im sorry i thought this would be easier than i thought but i tryed, i havent learned that yet but were  learning degrees. maybe the function of g is up 6 over 5? and b would be up 5 over 6? sorry if thats confusing i tryed to understand it. after i saw the picture a second time i saw a graph so thats why i said up 5 over 6 or up 6 over 5

sorry thought, i thought it might be easier than i thought but i understand what you mean now. its confusing a bit...

i hope you get someone to give you a much better anwser than i did, and have a great day!

Answer:

It would take 1097 days for the costs in Canada to be equal (up to) the cost in China

Step-by-step explanation:

The information given in the question includes;

1) China initial fee = $1,000,000

Number of people = 10

Payment per person per day = $1

Payment for the 10 people per day = $10

Canada initial fee = $50,370

Number of people = 10

Payment per person per day = $90

Payment for the 10 people per day = $900

Step 1: Define the variables to represent unknown quantities

Let the number of days at which the cost would be equal be X

Step 2: The equations relating the variables are;

$1,000,000 + X-days × $10/day = $50,370 + X-days × $900/day

Step 3: To solve the equation we have;

$1,000,000 - $50,370 =  X-days × $900/day - X-days × $10/day

$949,360 = X-days × $890/day

X-days = $949,360 ÷ $890/day = 1067 days

Step 4: Conclusion: It would take 1097 days for the costs in Canada to be equal (up to) the cost in China

5) The difference in wages can be explained by the following;

1) Low cost of living in China compared to Canada

2) Higher unemployment figures in China

3) Government policies

6) Companies that outsource their manufacturing includes;

1) Apple 2) Cisco 3) Nike

7) Advantages of outsourcing

a) Acquire skilled labor

b) Reduce the distraction of manufacturing and focus on fundamental pursuits

c) Reduce risks

d) Improve efficiency

e) 24 hours up time business  

f) Improved workforce flexibility

g) Service improvement

h) Cost savings

8) Disadvantages of outsourcing

a) Hidden costs of production

b) Potential loss of focus

c) Increased security risks

d) Reduced central control

e) Partake in financial cost of other companies

Answer:

The intersection of the two intervals = 4, 5, 6,.......+∞ = (4, +∞)

The union of the two intervals = -3, -2, -1, 0, 1, 2, 3, 4, 5,.....,+∞ = (-3, +∞)

Step-by-step explanation:

The given intervals are;

First interval  = (-3, +∞)

Second interval  = (4, +∞)

Using the number line, we therefore, the first interval includes, -3, -2, -1, 0, 1, 2, 3, 4, 5,.....,+∞

The second interval includes, 4, 5,.....,+∞

Which gives the intersection as 4, 5, 6,.......+∞

The union is the interval that combines the two sets of intervals which is given as follows;

The union of the two intervals = -3, -2, -1, 0, 1, 2, 3, 4, 5,.....,+∞

The purpose of a variable is to hold and represent a value Option C.

The purpose of a variable in programming or mathematics is to hold and represent a value that can be assigned, changed, and used in various operations or calculations. Variables are fundamental components of programming languages and mathematical equations, enabling flexibility and dynamic behavior in computational tasks.

Option (c) "to hold a value" is the most accurate answer, as variables are used to store data or information in memory locations. This value can be of different types, such as integers, floating-point numbers, characters, or even more complex data structures like arrays or objects.

Variables allow programmers to work with and manipulate data efficiently. By assigning values to variables, we can reference and modify them throughout the program, making it easier to manage and organize information.

Variables also play a crucial role in performing calculations, as mentioned in option (b). We can use variables in mathematical expressions and algorithms to perform arithmetic operations, comparisons, and other computations. By storing values in variables, we can reuse them in multiple calculations and update them as needed.

While option (a) "to assign values" is a specific use case of variables, it is not the sole purpose. Variables not only store values but also facilitate data manipulation, control flow, and the implementation of algorithms and logic.

Option (d) "to hold a constant value" is incorrect because variables, by definition, can hold varying values. Constants, on the other hand, are fixed values that do not change during the execution of a program. Option C is correct.

For more such question on variable. visit :

https://brainly.com/question/28248724

#SPJ8

The sum of the first 200 multiples of 3 is 60,300(B).

To find the sum of the first 200 multiples of 3, we need to calculate the arithmetic series. The formula for the sum of an arithmetic series is Sn = (n/2)(a + l), where Sn is the sum, n is the number of terms, a is the first term, and l is the last term. In this case, the first term (a) is 3, and the last term (l) is 3 * 200 = 600.

Plugging these values into the formula, we get Sn = (200/2)(3 + 600) = 100 * 603 = 60,300. Thus, the sum of the first 200 multiples of 3 is 60,300(C).

For more questions like Series click the link below:

https://brainly.com/question/28167344

#SPJ11

The wind is blowing at the rate of 4 miles per hour

The formula for calculating speed is expressed as:

Speed = Distance/Time

Given the following parameters

Speed of airplane = 18 miles per hour

Speed in wind = 2.2 * 10  = 22 miles/hr

Speed of the wind = 22 - 18

Speed of the wind = 4mi/hr

Hence the wind is blowing at the rate of 4 miles per hour

Learn more on speed here: https://brainly.com/question/4931057

answer:

if you rounded it the answer is 15 years old!

step-by-step explanation:

when know that your sister is 9 years old, so lets start off with that. because your sister is 4 older then your brother then that must mean that you brother is 5 years old

9-4

= 5

we also know that you brother is 1/3 your age so divide 5 by 1/3 or .33

5/ .33

= 15.15

but since it looks like we only need the whole number. just round down to 15 since your age is not close enough to round up to 16

( here is a tip i have gotten for rounding )

1-4 stay on the floor

5-9 climb the vine

haha they might sound super du-mb but they have helped me when i was younger!

hope this helps you and if you ever need anymore help/questions just ask me! :)

Answer:

\(42 = - 48 + 3r\)

add 48 to either sides:

\(42 + 48 = ( - 48 + 3r) + 48 \\ 90 = 3r \\3r = 90\)

divide all sides by 3:

\( \frac{3r}{3} = \frac{90}{3} \\ \\ { \boxed{ \boxed{r = 30}}}\)

Answer:

r = 30

Step-by-step explanation:

42 = -48 + 3r

42 + 48 = -48 + 48 + 3r

90 = 3r

\(\frac{90}{3} =\frac{3r}{3}\)

30 = r

The required midpoint of the given coordinates (-6,-6) and (4,-2) is ( -1, -4)

A midpoint is defined as in the middle of the line connecting two points a position known as a midpoint. A location in the middle of a line connecting the two points that are equally far from both points is the midpoint.

Let two points A (x₁, y₁) and B (x₂, y₂), the midpoint between A and B is given by,

M(x, y) = (x₁ + x₂)/2, (y₁ + y₂)/2

Given (-6,-6) and (4,-2)

So for the line segment with endpoints (-6,-6) and (4,-2), the midpoint is:

= [(-6 + 4)/2, (-6 +( -2))/2]

=  [(-2)/2, (-8)/2]

= ( -1, -4)

Hence, the midpoint of(-6,-6) and (4,-2) is ( -1, -4).

Learn more about the midpoint here :

brainly.com/question/5127660

#SPJ1

Answer:

F

Step-by-step explanation:

The x and y do not match up

Answer:

It is F.

Step-by-step explanation:

It is F because all the x's are the same as that cannot happen.

The graph of the parametric equations x = -2cos(t) and y = -sin(t) within the range 0 ≤ t < 2π is an ellipse centered at the origin, with the major axis along the x-axis and a minor axis along the y-axis.

To sketch the graph of the parametric equations x = -2cos(t) and y = -sin(t), where 0 ≤ t < 2π, we need to plot the coordinates (x, y) for each value of t within the given range.

1. Start by choosing values of t within the given range, such as t = 0, π/4, π/2, π, 3π/4, and 2π.

2. Substitute each value of t into the equations to find the corresponding values of x and y. For example, when t = 0, x = -2cos(0) = -2 and y = -sin(0) = 0.

3. Plot the obtained coordinates (x, y) on a graph, using a coordinate system with the x-axis and y-axis. Repeat this step for each value of t.

4. Connect the plotted points with a smooth curve to obtain the graph of the parametric equations.

The graph will be an ellipse centered at the origin, with the major axis along the x-axis and a minor axis along the y-axis. It will have a vertical compression and a horizontal stretch due to the coefficients -2 and -1 in the equations.

Learn more About parametric equations from the given link

https://brainly.com/question/30451972

#SPJ11

The number of ways we can select a captain and one alternate captain from a team of eleven soccer players is 55

A permutation is an act of putting things or numbers in a particular order. Combinations are a method of selecting objects or numbers from a group of objects or collections without regard for their order.

Given that soccer player = 11

We have to find in many ways we can choose a captain and one alternate captain from a team of eleven soccer players

Out of 11 player, we have to pick one captain and one alternate captain

nCr ways

nCr = n!/r!(n-r)!

Here n = 11 and r = 2

= 11C2

= 11!/2!(11-2)!

= 11! / 2!.9!

= ((11x 10 x 9!)/2!.9!)

= (11 x 10)/2

= 110/2

= 55

Therefore the number of ways we can select a captain and one alternate captain from a team of eleven soccer players is 55

To learn more about permutations and combinations visit

https://brainly.com/question/9283678

#SPJ4

Answer: y= 1.99x+ 50

Equation: y=mx+b