PLEASE HELP!!!
A system of linear inequalities is graphed below.
What are the linear inequalities for the system? Show your work, or explain your answer.
Answers
Answer:
System of linear inequalities is x - y + 1 < 0 and x + 2y +6 < 0
Step-by-step explanation:
Given:
The dotted line has two points as (-1,0) and (0,1).The solid line also has two points as (-6,0) and (0,-3).To Find:
Linear inequality for the system.Formula used:
Equation of a line passing through point (x1, y1) and (x2, y2) is given by (y-y1) = (y2-y1)/(x2-x1) * (x-x1)According to question, we have
Inequality for dotted line :
(y-1) > (0-1)/(-1-0) * (x-0)
y - 1 > x
x - y + 1 < 0...(1)
Inequality for solid line:
(y-(-3)) < (0-(-3))/(-6-0) * (x-0)
y + 3 < -x/2
x + 2y +6 < 0...(2)
Using (1) and (2), we get
System of linear inequalities is x - y + 1 < 0 and x + 2y +6 < 0.
Related Questions
How is the graph of each equation related to
standard form Ax + By = C?
Answers
Answer:
When A = 0 and y = 1 and C = 2
0x + 1y = 2
y = 2 No matter what x is, y will always be 2 and this will create a horizontal line.
Step-by-step explanation:
1) The compound interest of a sum of money is Rs 13310 and in 4 years is Rs 14641. Find the rate of interest and sum.
Answers
The rate of interest is 10% and the sum is Rs 10,1000.
What is compound interest?The interest calculated on the principal and the interest accrued over the prior period is known as compound interest. Compound interest is commonly abbreviated C.I. in mathematics.
The compound interest formula is given by
Compound Interest = Amount – Principal
Here, the amount is
[tex]A=P(1+\frac{r}{100} )^{n}[/tex] where,
A = amount
P = principal
r = rate of interest
n = time (in years)
Given:
C.I. of a sum of money in 3 years = Rs 13310
C.I. of a sum of money in 4 years = Rs 14641
Let the principal be P and the rate of interest be r%
Then, according to the question,
For 3 years:
[tex]13310=P(1+\frac{r}{100} )^{3}[/tex] ..... (1)
For 4 years:
[tex]14641=P(1+\frac{r}{100} )^{4}[/tex] ..... (2)
Dividing equation (2) by (1), we obtain
[tex]\frac{14641}{13310} =(1+\frac{r}{100} )[/tex]
⇒[tex]\frac{14641-13310}{13310} =\frac{r}{100}[/tex]
⇒[tex]\frac{1331}{13310} =\frac{r}{100}[/tex]
⇒[tex]r=\frac{100}{10}[/tex]
⇒ r = 10%
Now, substituting r in equation (1),
[tex]13310=P(1+\frac{10}{100} )^{3}[/tex]
⇒[tex]13310=P(\frac{1331}{1000} )[/tex]
⇒P = Rs 10,000
Therefore, the rate of interest is 10% and the sum is Rs 10,1000.
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The price of a phone was AED 1,500.
How much will you pay for this phone, after a discount of 22% and a 6% tax?
Answers
Answer:
100-22=78
78+6=84
1500 x 84/100= 1260Dhs
Plss mark as brainliest
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Answers
Hey could you help me make sure these are right . Thanks so much they points are at 50 and I’ll mark brainliest
Answers
Step-by-step explanation:
your answers are right in my pov
Write the definition as a biconditional statement:
An equilateral triangle is a triangle with three congruent sides.
Answers
The term "if and only if" makes the sentence bi-conditional. A triangle is equilateral if and only if it has three congruent sides.
A conditional statement with its opposite expressed in the form of "if and only if," collectively known as a bi-conditional statement. Bi-conditional logic is the theory behind bi-conditional assertions.
This can be compared to the conditional sentence, "if this, then that." Due to the lack of a "if and only if," it is not bi-conditional. The reversal of a conditional statement's ability to produce a bi-conditional depends on whether it is also true.
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Ethan’s family used 16.8 gallons of gas to drive 428.4 miles .How many miles did they drive on each gallon of gas.
Answers
Answer: 25.5 miles per gallon. 16.8 gallons x 25.5 miles = 428.4 miles
an air conditioning and heating repair firm conducted a study to determine if the average outside temperature could be used to predict the cost of an electric bill for homes during the winter months in houston, texas. the resulting regression equation was: y
Answers
Finding the numeric value of the regression line, it is found that the electric bill in a month with temperature of 48 degrees is of $157.59.
How to find the numeric value of a function or of an expression?To find the numeric value of a function, we replace each instance of the variable in the function by the desired value.
In the context of this problem, the function is given as follows:
y = 227.19 - 1.45x.
Which y giving the electric bill for a month of temperature x degrees.
The temperature is of 48 degrees, hence to find the electric bill, the lone instance of x in the function is replaced by 48, hence:
y = 227.19 - 1.45(48) = $157.59.
Hence the electric bill in a month with temperature of 48 degrees is of $157.59.
What is the missing information?The regression line is missing in this problem, as is defined as follows:
y = 227.19 - 1.45x.
In which:
y is the electric bill.x is the monthly temperature.The problem asks for the electric bill in a month with temperature of 48 degrees.
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How do you do question 7 and 8?
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Answer:
7.
[tex]y = \frac{a - b \: x {}^{10} \times ln(x) }{x {}^{10} } [/tex]
8.
[tex]y = \frac{12x {}^{3} \times ln(x) - 2x {}^{4} + 1 + 4\pi {}^{2}x {}^{3} }{4x {}^{3} } [/tex]
Identify the point corresponding to P.
P′ (−2, 0)
P′ (−4, 0)
P′ (−3, −1)
P′ (−5, −3)
Answers
Answer:
(-4,0)
ignore this line
(ANSWER AT THE BOTTOM)A rectangular container can hold 45 candles, while a cylindrical container holds 41 candles. Each rectangular container costs the company $16, while the cylindrical container costs the company $15. If the company needs to package 6,400 candles, should it use only rectangular or only cylindrical containers to minimize costs? Explain.
How many rectangular containers will be necessary to package 6,400 candles?
How many cylindrical containers will be necessary to package 6,400 candles?
Which container should the company use to minimize costs? Explain.
143,157,the rectangular containers,because it will cost the company $67 more to use the cylinder containers.
Answers
The number of rectangular containers will be necessary to package 6,400 candles is 143
The number of cylindrical containers will be necessary to package 6,400 candles is 157.
The container that would minimise cost is the rectangular container because it would $67 less to use the rectangular container.
Which container minimises costs?The first step is to determine the total cost of packing 6400 candles using the rectangular container.
Total cost = number of containers needed x cost of one rectangular container
Number of containers needed = total number of candles to be packages / number of candles the container can hold
6400 / 45 = 142.22 = 143 rectangular containers
Total cost = $16 x 143 = $2,288
The next step is to determine the total cost of packing 6400 candles using the cylindrical container.
Total cost = number of containers needed x cost of one cylindrical container
Number of containers needed = total number of candles to be packages / number of candles the container can hold
6400 / 41 = 156.1 = 157 cylindrical containers
Total cost = $15 x 157 = $2,355
Difference in costs = $2,355 - $2,288 = $67
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Identify all the sets which each number belongs. 15,-5.075,and π
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The sets of numbers which each of the numbers given belong to as required in the task content is as follows;
15; Real, rational and Integers.-5.075; Real, rational and decimal.π; Real, Irrational and decimal.To what sets do all three numbers as given belong?As evident in the task content, the sets to which the three numbers belong is to be determined.
Hence, taking the numbers one after the other; we have;
15 => The number 15 belongs to the set of real numbers, rational numbers and most particularly, integers.
-5.075 => The number -5.075 belongs to the set of real numbers, rational numbers, and most particularly, decimals.
π => The number represented by π belongs to the set of real numbers, irrational numbers and it's numerical value is a non-terminal and non-repeating decimal.
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You purchase a home for $200,000 which appreciates at 2.5%. How much is it worth in 7 years?
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Answer: The answer I came up with is: $237,737
What is the smallest possible degree that the polynomial can have and why?
Answers
Check the picture below.
18. Angela cleans sneakers on the weekend to make extra money. She has completed 12
pairs of shoes, which is 20% of her total orders. How many total orders does Angela have
to clean?
Answers
The total number of orders that Angela has to clean are 60.
How to calculate the Percentage of a number?A percentage is a certain number or part of every hundred. It is a fraction with the denominator 100, and the symbol for it is "%." To determine the percentage of a number use the percentage formula to transform the problem into an equation: P% * X = YGiven:
Number of pairs of shoes cleaned by Angela = 12
Let the total number of shoes to be cleaned be x.
So,12 pairs of shoes are 20% of her total orders.
20% of x = 12
(20/100)x = 12
0.2x = 12
x = 12/ 0.2
x = 60
Therefore, Angela has to clean a total of 60 pairs of shoes.
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help i don’t get it
answers pls
Answers
Answer: 13
Step-by-step explanation:
As the sum of the angles of a triangle is 180, we have that 39 + 90 + 3x+12 = 180.
3x = 180 - 39 - 90 - 12
3x = 39
x = 13
( Please help + Will mark brainliest )
Answer the question in photo.
Answers
Answer: 1/4
Step-by-step explanation:
The scale factor is the same as the ratio of the length of a side of the image to the length of the corresponding side in the preimage.
We know that A'D'=2 and AD=8, so the scale factor is 2/8 = 1/4.
1. An elevator in a tall building starts at a floor of the building that is 80 meters above the ground. The elevator descends2 meters every 0.5 seconds for 4 seconds. Identify the domain and range using the following formats and then graph.Inequality:Set Notation:
Answers
Let's begin by listing out the information given to us:
The elevator starts at 80 m
The elevator descends 2 meters every 0.5 seconds for 4 seconds
The inequality is given by:
[tex]\begin{gathered} y=80-2x \\ where\colon x=every\text{ 0.5}seconds \end{gathered}[/tex]The set notation is given by:
[tex]undefined[/tex]pls pls help whoever gets it right gets marked brainliest
Answers
Answer:
13 units
Step-by-step explanation:
[tex]d=√((x_2-x_1)²+(y_2-y_1)²) [/tex]
[tex] \sqrt{( - 2 - ( -14)^{2} } + ( - 4 - 1) {}^{2} [/tex]
[tex] \sqrt{12 {}^{2} } + ( - 5) {}^{2} [/tex]
[tex] \sqrt{169} [/tex]
= 13 UnitsUse proof by contradiciton to prove that the sum of the squares of two odd integers cannot be a perfect square. HINT: you can use the fact that the sum of two odd numbers must be even without proof
Answers
Assume to contrary that the sum of the squares of two odd integers can be the square of an integer. Since, [tex]2[2(m^{2}+n^{2})+2(m+n)+1][/tex] is odd it shows that sum of the squares of two odd integers cannot be the square of an integer.
What is a square?A quadrilateral with four equal sides is called a square. There are the numerous items in our environment that have a square shape. Equal sides and internal angles that are both 90 degrees distinguish each square shape. Let's find out more about square's characteristics, mathematics, and design.
A square has four corners and is closed, two-dimensional (2D) object.
Assume to contrary that the sum of the squares of two odd integers can be the square of an integer.
Suppose that x,y,z∈Z such that [tex]x^{2} +y^{2} =z^{2}[/tex], and x and y are odd.
Let, x=2m+1 and y=2n+1.
Hence,
[tex]x^{2} +y^{2} =(2m+1)^{2} + (2n+1)^{2}[/tex]
=[tex]4m^{2}+4m+1+4n^{2}+4n+1[/tex]
=[tex]4(m^{2}+n^{2}) + 4(m+n)+2[/tex]
=[tex]2[2(m^{2}+n^{2})+2(m+n)+1][/tex]
Since, [tex]2[2(m^{2}+n^{2})+2(m+n)+1][/tex] is odd it shows that sum of the squares of two odd integers cannot be the square of an integer.
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8. Which best describes the relationship between the line that passes through (-1, -8) and (4,-4) and the line
that passes through (2, -9) and (7,-5)?
a. parallel
b. perpendicular
C.
same line
d. neither perpendicular nor parallel
Answers
Considering the expression of a line, the correct answer is option a.) the relationship between the line that passes through (-1, -8) and (4,-4) and the line that passes through (2, -9) and (7,-5) is parallel.
Linear equationA linear equation o line can be expressed in the form y = mx + b
where
x and y are coordinates of a point.m is the slope.b is the ordinate to the origin and represents the coordinate of the point where the line crosses the y axis.Knowing two points (x₁, y₁) and (x₂, y₂) of a line, the slope m of said line can be calculated using the following expression:
m= (y₂ - y₁)÷ (x₂ - x₁)
Substituting the value of the slope m and the value of one of the points in the expression of a linear equation, y = mx + b, the value of the ordinate to the origin b can be obtained.
Parallel lineParallel lines are two lines that are always at the same distance from each other and that prolonged towards infinity never touch.
Two lines are parallel if they have the same slope and different y-intercepts. That is, they have the same value of m and different value of b.
Perpendicular linePerpendicular lines are lines that intersect at right angles or 90° angles. If you multiply the slopes of two perpendicular lines, you get –1.
Relationship between lines in this caseIn this case, you can calculated in this case:
Being (x₁, y₁)= (-1; -8) and (x₂, y₂)= (4; -4), the slope m can be calculated as:
m= (-4 - (-8))÷ (4 - (-1))
m= (-4 + 8)÷ (4 + 1)
m= 4÷ 5= 4/5
Considering point 1 and the slope m, you obtain:
-8= 4/5× (-1) + b
-8= -4/5 +b
-8 + 4/5= b
-36/5=b
The equation of the line that passes through the pair of points (-1, -8) and (4,-4) is y=4/5x - 36/5.
Being (x₁, y₁)= (2; -9) and (x₂, y₂)= (7; -5), the slope m can be calculated as:
m= (-5 - (-9))÷ (7 - 2)
m= (-5 + 9)÷ (5)
m= 4÷ 5= 4/5
Considering point 1 and the slope m, you obtain:
-9= 4/5× (-2) + b
-9= -8/5 +b
-9 + 8/5= b
-37/5=b
The equation of the line that passes through the pair of points (-1, -8) and (4,-4) is y=4/5x - 37/5.
You can see that the lines y=4/5x - 36/5 and y=4/5x - 37/5 have the same slope of 4/5 and different ordinates to the origin. So, this lines are parallel.
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Which expression is equivalent to t
3(x+24)?
A-2/3x+24
B-2/3x+16
C -2/3x-16
D 2/3x-16
Answers
Because of -2 the answer is c
Estimate the intercepts of the graph of the function
Answers
Answer:
x-intercept equals 5
y-intercept equals -10
Step-by-step explanation:
y-intercept: solve when x=0. y=-2|x-5|= -10
A store sells small notebooks for $6 and large notebooks for $10. If a student buys 6 notebooks and spends $48, how many of each size did he buy?
Answers
They could buy 8 small notebooks or 3 large notebooks and 3 small notebooks.
Answer: just one way to do it. You can buy 3, large books and 3 small books
Step-by-step explanation:
10x3=30
48-30=18
18 divided by 3 = 6
please give answer fast and provide explanation so I know how to do it
Answers
Step by step
y =5x + 23 is your equation given
Your rate shown (slope) is 5 multiplied by time (x) which is the variable
Your time (x) given is 3.5
y = 5 (3.5) + 23
y = 17.5 + 23
y = 40.5
. What values of x will make the absolute value equation, 2x - 4= 15, true?
Answers
After factorization, the absolute value of the variable 'x' is 9.
What is factorization method?
The factorization method is used for the quadratic based equation whose highest degree is either two or more than two. Depending upon the degree of the variable, the number of factors are calculated. And by substituting the calculated value to check whether the answer is correct or not.
According to the question, the given linear equation is: |2x - 4| = 15
Now, to calculate the value of the variable 'x' by using factorization method. And to remove the bars which represent absolute value that means positive values
Required expression: |2x - 4| = 15
⇒ 2x = 15 + 4 = 19
⇒ x = 19/2 = 9.5
After factorization, the absolute value of the variable 'x' is 9.
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I'd appreciate some help here
Answers
Answer:
6.6 is the correct number
Step-by-step explanation:
The base is 2.2 inches. The height is 3 inches. So the area is 2.2 × 3 = 6.6 square inches.
0.3(6y + 15) = 1.8y + 4.5.
its hard
Answers
__________________________________________________________
Hello! In this question, we will be solving the given equation for the variable "y".
__________________________________________________________
Explanation:
In our question, we were given the following equation:
0.3(6y + 15) = 1.8y + 4.5To solve for our "y" variable, we will perform distributive property and simplify to get the value of "y".
__________________________________________________________
Solve:
[tex]0.3(6y + 15) = 1.8y + 4.5\\\\\text{Use the distributive property to distribute the "0.3"}\\\\1.8y+4.5=1.8y+4.5\\\\\text{Since both sides of the equal sign are equal, there will be infinite solutions}[/tex]
Proof:
[tex]\text{To prove that there are infinite solutions, we could continue to solve the}\\\text{equation:}\\\\1.8y+4.5 =1.8y+4.5 \\\\\text{Subtract 1.8y from both sides}\\\\4.5=4.5\\\\\text{Subtract 4.5 from both sides}\\\\0=0[/tex]
__________________________________________________________
Answer:
[tex]\boxed{\text{Infinite solutions}}[/tex]
__________________________________________________________
What is the relationship between multiplying and factoring? You multiply numbers or expressions to produce a (select). You factor a product into the numbers or(select)that were multiplied to produce it.
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Answer:
Factoring polynomials is the inverse process of multiplying polynomials. After factoring a polynomial, if we divide the polynomial with the factors then the remainder will be zero.
Please help me please
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