Mathematics High School

hi I need answer please. I will mark brainliest who can answer thankyou...​

Hi I Need Answer Please. I Will Mark Brainliest Who Can Answer Thankyou...

Answers

Answer 1

Answer:

a) (0,0), (-4, 1), (-1,2)b) None

Step-by-step explanation:

There are two ways of solving similar problems. One- substitute x and y with respective coordinates and verify if the inequalities are correct. Two- graph the lines and see if the points are in the intersection zones.We'll go with the first method. Remember both inequalities should be correct for the same point to accept it as a solution.

Given points

(0,0), (-4,1), (-1,2)a) The system of inequalitiesy > x - 1y < -1/2x + 2

Point (0,0)

0 > 0 - 1 = -1 correct0 < -1/2(0) + 2 = 2 - correctYes

Point (-4,1)

1 > -4 - 1 = -5 - correct1 < -1/2(-4) + 2 = 4 - correctYes

Point (-1,2)

2 > -1 - 1= -2 - correct2 < -1/2(-1) + 2 = 2.5 - correctYesb) The system of inequalitiesx - 2y ≥ 42x - y ≥ -1

Point (0, 0)

0 - 2(0) = 0 ≥ 4 - incorrect2(0) - 0 = 0  ≥ -1 - correctNo

Point (-4, 1)

-4 - 2(1) = - 6 ≥ 4 - incorrect2(-4) - 1 = - 9 ≥ -1  - correctNo

Point (-1,2)

-1 - 2(2) = -5  ≥ 4 - incorrect2(-1) - 2 = - 4 ≥ -1  - correctNo
Answer 2

9514 1404 393

Answer:

  a.  all points are part of the solution set

  b.  no points are in the solution set

Step-by-step explanation:

Graphs of the two systems of inequalities are attached.

a) The red area on the graph is the solution. The two inequalities can be combined to one compound inequality:

  x -1 < y < -1/2x +2

The two boundary lines intersect at x-1 = -1/2x +2   ⇒   x = 2, so there are no points in the solution set with x-values of 2 or greater.

All of the given points are in the solution set.

__

b) The green area of the graph is the solution. Solving each inequality for y gives ...

  x -2y ≥ 4  ⇒  1/2x -2 ≥ y

  2x -y ≥ -1  ⇒  2x +1 ≥ y

The allowed values of y must be less than or equal to the minimum of these limits. The limits have the same value at 1/2x -2 = 2x +1   ⇒   x = -2, so the solution set is the area below and right of that intersection point of the two boundary lines.

None of the given points are in the solution set.

Hi I Need Answer Please. I Will Mark Brainliest Who Can Answer Thankyou...

Related Questions

Help I will be marking brainliest!!!!

A. 241 feet
B. 358 feet
C. 258 feet
D. 341 feet

Answers

Answer: A. 241 feet

Step-by-step explanation:

The figure shows two rectangular triangles.

These triangles are similar since they have two identical angles:

the first angle is 90 degrees;

the second angle is equal because the law of reflection states that the angle of incidence is equal to the angle of reflection.

The law of reflection states that the angle of incidence is equal to the angle of REFLECTION.

Let's make the proportion:

[tex]\dfrac{4}{273} =\dfrac{5}{x} \\\\x=\dfrac{273 \cdot 5}{4} =341.25 \: (feet)\\[/tex]

It takes a minimum of 100 feet for a parachute to open and safely land without injury, so:

341.25 - 100 = 241.25 (feet)

241.25 ≈ 241 (feet)

Bao is taking a multiple choice test with a total of 100 points available. Each question
is worth exactly 2 points. What would be Bao's test score (out of 100) if she got 8
questions wrong? What would be her score if she got x questions wrong?

Answers

Answer:

84

Step-by-step explanation:

100-point test = 50 questions which are worth 2-points each.

(50 x 2 = 100)

If she got 8 wrong, this means she lost 16 points ( 8 questions x 2 points each = 16 points in total)

100 - 16 = 84

To find her score if she got x questions wrong just multiply x by 2 and subtract the answer to 100.

Joanne bought 5 candy bars for $3.50. How much is each candy bar? pls help !!

Answers

Answer:

70 cents

Step-by-step explanation:

all you have to do is divide $3.50 and 5 :)

$0.70 or 70 cents
Explanation:
All you have to do is take $3.50 divided by 5. You’ll get 0.7.

For every person who has the flu, there are 6 people who have only flu-like symptoms. If a doctor sees 40 patients, determine approximately how many patients you would expect to have only flu-like symptoms.

Answers

Answer:

Approximately 7 people.

Step-by-step explanation:

Make a proportion of x/6 and divide 40 by 6. We get 6.23333...

This is approximately 7 people.

One-third of a number decreased by six equals eight. What is the number?
6

Answers

Answer:

The number is 42.

What is 3 times four divided 69 plus 10

Answers

Answer:

I got the answer 234/23

i hope this helps

Peter scored 27 out of 50 in a test. What percent was that? *
-13.5%
-27%
-50%
-54%

Answers

Answer:

54% for sure please give me brainliest

Answer:

54%

Step-by-step explanation:

27/50 = 54/100 (multiply the full score untill it is at 100, the use the same number it took for that and multiply the points)

Plz help me out xx tysm

Answers

Answer:

see explanation

Step-by-step explanation:

let the number be x , then

[tex]\frac{1}{2}[/tex] x = 44.3 ← is the equation

Answer:

x / 2 = 44.3

Hope that helps!

Step-by-step explanation:

PLS HELP!! GIVING BRAINLIST

Answers

Answer:

x=2

y=0

Step-by-step explanation:

8x - 4y = 16

solve for x

8x = 4y + 16

divide 8 by all terms

x = 2 + [tex]\frac{y}{2}[/tex]

Insert x in second equation

8(2+y/2)+4y=16

solve

y=0

x=2

Consider the system of equations below.
4x – 8y = 12
11x + 7y = 33

Answers

Answer:

x = 3

y = 0

Step-by-step explanation:

x=3 and y=0 is your answer have a great rest of your day

Find the slope of the line y=-6x-4. Type your answer as an integer.

Answers

Answer:

The slope is -6

Step-by-step explanation:

In the slope intercept form, it is y=mx+b, where m is the slope and b is the y-intercept

Therefore, -6 is slope and -4 is y-intercept

Determine the value of m∠DCB.

Answers

Answer:

Angle DCB is Equal to 78

Step-by-step explanation:

4x+2 + 3x+3 =180

7x +5=180

7x=175

x=25.

Then put the x in the 3x+3

3(25) +3 = 78

so  DCB = 78

the answer to this equation would be 78

Please help me it says What kind of triangle makes the Pythagorean theorem true?what angle does it need to have?

Answers

Answer:

right triangle

Step-by-step explanation:

The sides of a right triangle in a simple way, so that if the lengths of any two sides are known the length of the third side can be found.

hope it helps.

need help please somebody

Answers

Answer:

Sorry I’m in a hurry but all you need to do is multiply all the numbers together.

Step-by-step explanation:

I did a problem like that i think

Write the equation of the line passing through the point (-2; 2) that is
PERPENDICULAR to y = -2x + 1 in slope-intercept form. 

Answers

Answer:

2y-x-6=0

Step-by-step explanation:

What are the two ways that we discussed in class that can be used to determine if two expressions are equivalent?

Answers

A debate I’m assuming?

How many terms are in the expression below?

3x3+4x+7

Answers

Answer:

3

Step-by-step explanation:

Answer:

2

Step-by-step explanation:

Whenever you are multiplying any numbers or dividing you count them as terms. Since you are multiplying two numbers there will be 2 terms you don't count them if you add.

Tell me if I'm wrong and please explain.

y= x + 3

y= -1/2x - 3

plot 2 lines on the graph​

Answers

Answer:

y = x + 3 is the Green Line

y = -1/2x -3  is the Blue Line

You are taking a multiple choice quiz that consists of twenty questions. Each
question has five possible choices, only one of which is correct. To complete the
quiz, you randomly guess the answer to each question. Find the probability of
guessing:

Answers

well I think it's going to be only 6

Need help as fast as possible please
I will mark BRAINLIST only for correct answers :)
Thank you!

Answers

Answer:

Correct Answer

Step-by-step explanation:

Mark as brainliest now NOW!

When Mei solved the system of equations below, she got the
solution x = 4, y = 2. Without solving the system, yourself, can you
tell her whether this solution is correct?
4x + 3y = 22
x - 2y = 0
No
yes
Both

Answers

Answer:

yes

yes is answer of this equation

Answer:

answer is yes

Step-by-step explanation:

Help Asap if i can i will give brainliest

Answers

Answer:

10x+2y

8c+2

0

Step-by-step explanation:

I NEED HELP PLSSS

Given QUAD is a quadrilateral,
find the value of x.
If the answer is 14, move to J
If the answer is 30, move to L
If the answer is 23, move to K
If the answer is 21.4, move to M

Answers

Answer:

=>(4x+14)+(5x-1)+(4x-5)+(2x+7) = 360°

=>4x + 14 + 5x - 1 + 4x - 5 + 2x +7 = 360°

=>15x + 15° = 360°

=>15x = 360°- 15°

=>x = 345/15

=>x = 23

So move to K

A trampoline has a jumping surface that is 15.7 ft. long and 12 ft. wide. What is the area of the jumping surface?

Answers

Answer:

188.4

Step-by-step explanation:

because if you multiply 15.7 and 12 you get 188.4 and that is the area of the jumping space.

Answer:

area = length×wide=15.7×12=188.4ft²

Please and thanks!!!

Answers

i can’t really see it

A car dealership buys a car for $12,500. They sell the car for $15,750. What is the percent markup?

Answers

Answer: 26%

Step-by-step explanation:

The formula to calculate the percentage markup is given as:

= Selling price - Cost / Cost price × 100

where selling price = $15750

Cost price = $12500

Percentage markup = ($15750 - $12500) / $12500 × 100

= $3250/$12500 × 100

= 26%

Answer: 26

Step-by-step explanation:

12,500 - 15,750= 3250

The radius of a circle measures 12 centimeters.
What is the circumference of the circle?

Answers

Answer:

C=24π

Step-by-step explanation:

C=2πr

C=2π12

C=24π

≈75.39

Round 1.823 to the nearest whole number.​

Answers

Answer:

2

Step-by-step explanation:

Look at the ones place (1). Look to the right of it (8). Since 8 is more than 4, raise the 1 to the next number, 2. So rounded to the nearest whole number, the decimal 1.823 is 2.

Hope it helps!

Fill in the blank to make an equivalent ratio.
4:7 = ______ : 56

Answers

Answer:

4:7 = 32:56

Step-by-step explanation:

4 x 8 = 32

7 x 8 = 36

Hope this helped!

PLZZZZZ give me brainliest

Answer:  32:56

Step-by-step explanation:

because first I divided 56/7=8 and then did 4*8=32. You're welcome!!! c:

can somebody help me

Answers

Answer:

m=1/2

Step-by-step explanation:

your answer is right

m=1/2 hope this helped
Other Questions
The following is cost information for the Creamy Crisp Donut Company. Entrepreneur's potential earnings as a salaried worker = $50,000 Annual lease on building = $22,000 Annual revenue from operations = $380,000 Payments to workers = $120,000 Utilities (electricity, water, disposal) costs = $8,000 Value of entrepreneur's talent in the next best entrepreneurial activity = $80,000 Entrepreneur's forgone interest on personal funds used to finance the business = $6,000 Creamy Crisp Multiple Choice has lower implicit costs, including a normal profit, than its explicit costs. is earning a normal profit but not an economic profit. is earning an economic profit. is suffering an economic loss, when implicit costs are considered. any body know all of them Wars between what two groups started with the Crusades and lasted into the Renaissance? How did the U.S government prepare the U.S. for war? can somebody please help me with number 2 and 5 its done today i will give brainliest Sara ran 2.28 kilometers on Monday. How many meters did she run? Match the expression with its name. 9X4 - 3x + 4A. cubic binomialB. quadratic monomialC. not a polynomialD. fourth-degree trinomial 10 A ship is made of 4000 m' steel of density7900 kgm^3a. What volume of fresh water1000 kg m) would the ship need todisplace in order for it to float?b. Explain how the design of the ship enablesit to displace this much water. PLEASE HELP ILL GIVE BRAINLIEST Please help me with trigonometry and law of sines Im being timed and really need the help Simplify the expression (-502) square root 0 A line has a gradient of -2A line that is parallel to this will have a gradient of ... What is 5944.1 to the nearest 10 Riddle time! Try the riddle it might be fun :) I will tell you if its right or wrong.Ethen, Ember, and George are drinking coffee. Willam, Karen and Aaron are drinking soda. Using logic, is Elizabeth drinking coffee or soda? Cargo shipping, an automobile manufacturer is preparin shipment of a cars andvtrucks on a cargo ship that can carry 21,600 tons The cars weigh 3.6 tons each and the trucks weihgt 7.5 tons each. 1. Wtite thevequation thatvrepresents the weight constraint of a shipment let be the number of cars and be the numbers of trucks. Kimora, a licensed veterinarian, was recently elected to the U.S. Senate. Kimora is very concerned about the lack of care for homeless cats and dogs. She proposes legislation whereby citizens of all states are to be taxed sufficiently to provide for no-kill animal shelters, and that citizens in states with higher-than-average incomes are to be taxed at a higher rate than citizens of other states. She also proposes that federal funds for state highways be denied to any state that fails to provide assistance to low-income citizens in covering pet vaccinations. Jose, another new senator, tells Kimora that, apart from the mandated federal income tax, Congress lacks the authority to tax states because the U.S. Constitution expressly reserves that right to the states. Sven, another senator, tells Kimora that Congress has no authority to link highway funds or any other funds with social welfare objectives. Devonne, a clerk in the Senate, tells Kimora that Congress is absolutely prohibited from taxing residents of one state at a higher rate than citizens of another state. In saying that Congress lacks the authority to tax states, is Jose correct Planning for retirement is extremely important to ensure that you will have income later in life. However, some people choose not to or cannot save for retirement. Turning off the water while brushing your Teeth saves 350 centilliters of water. How many liters of water can you save if you turn off the water the next 3 times you brush your teeth? (Round your answer to the nearest hundredth) I just got an assignment from my French teacher telling me to go to any site where you can talk to people and ask them what the time is in French and get answers so....Quelle heure est-il? In this excerpt from Sea Fever by John Masefield, which line contains an image that could stand for death?Somebody please answer correctly and stop being....