(0, 2): solution
(8, 1/2): not a solution
(-6, 3): solution
(-7, -3): not a solution
Explanation:To deterien the points that are solution to the inequality 2y - x > 1, we can plot the points on the graph or we check each of the points using the inequality. If statement is correct, then it is a solution.
The given points: (0, 2), (8, 1/2), (-6, 3), (-7, -3)
Inequality: 2y - x > 1
when x = 0, y = 2
2(2) - 0 > 1
4 - 0 > 1
4 > 1 (statement is correct)
Hence, it is a solution
when x = 8, y = 1/2
2(1/2) - 8 > 1
1 - 8 > 1
-7 > 1 (statement isnot correct)
Hence, it isnot a solution
when x = -6, y = 3
2(3) - (-6) > 1
6 + 6 > 1
12 > 1 (statement is correct)
Hence, it is a solution
when x = -7, y = -3
2(-3) - (-7) > 1
-6 + 7 > 1
1 > 1 (statement is not correct)
Hence, it isnot a solution
Enter the correct answer in the box.
Linear function f is shown in the graph. Write
the slope-intercept form of the equation representing this function.
The equation describing the function f(x) = y = 4x - 8
We have a linear function f(x) as shown in the graph.
What is the Slope - intercept form of the equation of a straight line?The Slope - intercept form of the equation of a straight line exists as follows:
y = mx + c
where m is the slope of the line
c be the intercept of the line on the y-axis.
Let c = - 8 be the intercept of the line on y - axes.
Intercepting coordinates on y - axes = (0, -8).
Intercepting coordinates on x - axes = (2, 0).
Slope = m = = 4
Therefore, the equation representing the function f(x),
y = 4x - 8.
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You estimate that your car gets 28 miles per gallon. The cost of gas per gallon is shown. How much does it cost you to travel 455 miles? Round to the correct number of significant figures.
The estimate of the cost to travel 455 miles as required in the task content is; $63.4.
What is the cost of travelling 455 miles as given in the task content?It follows from the task content that the cost of travelling 455 miles is to be determined from the given information.
Hence, this is two-step problem.
First, since the car gets 28 miles per gallon, the amount of gas needed to travel 455 miles by proportion is;
455/28 = 16.25 gallons.
Also, since the cost per gallon as in the complete task content is; $3.899.
The cost of 16.25 gallons is; 16.25 × $3.899
= $63.4.
Remarks: Gas costs $3.899 per gallon.
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How many circular tiles are needed to make pattern number 20
Answer:
84 circle for pattern 20
Step-by-step explanation:
we know that by studying the first 3 patterns we know that the corner pieces (that have multiple circles on them) has 3 circlesThe edge pieces (the ones with 1 circle on them) we now know what to doFor each pattern number that is how many squares (x) are [tex]x^{2}[/tex] to find how many squares in totalWe know we need to find square pattern 20We now know how many squares are gonna be on each side (20)look at attachment1 for referencenow we are gonna look atttachment2now we are gonna count the edges on each side (the blue) we get 18 on each side so we do 18*4 and that is 72now we know that the edges only have one circle on it so for the edges we have 72now for the corners, we know that there are 3 per corner piecenow we count the corners ( there are 4 in total)now we do 4*3 and that is 12now we add the total circles for the corners (12) and the edges (72) 12+72= 84pattern 20 has 84 circlesWrite the equation of a parabola with x-intercepts at (3, 0) and (9, 0) that
passes through the point (10, -7).
The parabola's equation is y = -x2 + 12x - 27.
A parabola is a point's location where the focus and a fixed point's distance from a fixed line, known as the directrix, are the same.
A parabola's equation is in quadratic form.
Thus, it is stated as:
Y = Ax2, Bx, and C
Located at (3, 0):
0 = a(3²) + b(3) + c
9a + 3b + c = 0 (1) (1)
Located at (9, 0):
0 = a(9²) + b(9) + c
81a + 9b + c = 0 (2) (2)
Located at (10, -7):
-7 = a(10²) + b(10) + c
100a + 10b + c = -7 (3) (3)
Equations 1, 2, and 3 are solved to yield: a = -1, b = 12, and c = -27.
Consequently, the parabola's equation is y = -x2 + 12x - 27.
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Please someone help help me
Answer:
y - axis
Step-by-step explanation:
point moves from right to left
Make an equation for the first question
Then use the equation to find the cab fare if zarela has a 1.8 mile commute to work
The two equations are : 6x + m = F
and 6x + 1.8 m = F
How to solve a linear equations ?A straight line's general equation is y = mx + c, where m denotes the gradient and y = c denotes the point at which the line crosses the y-axis. On the y-axis, this value c is referred to as the intercept. Y = mx + c represents the equation of a straight line with gradient m and intercept c on the y-axis.
A linear equation has the slope-intercept form y = mx + b. Variables in the equation are x and y. When x is 0, the integers m and b provide the line's slope (m) and the value of y. (b)
Let the total time be x
Given distance Zarela travels is m
Thus the total cab fare = F
Therefore the equation becomes;
6x + m = F
In the second part of the question it is given that Zarela travels for 1.8 mile
thus the equation becomes
6x + 1.8 m = F
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urgent please look at the picture
Answer: x = 72 degrees
Step-by-step explanation:
A Pentagon has 540 degrees in total
Divide 540 by the number of angles you have
540 / 5 = 108 degrees
The x angle is on a flat line with the other angle, when you add them you will get 180
So subtract 108 from 180
180 - 108 = x = 72 degrees
Consider each of the households living in your county.
Family 1: A married couple with one child: Due to the high cost of childcare, one parent stays home to care for the child while the other works 40 hours per week making $18 per hour. They also receive a monthly stipend of $50 to cover work related expenses.
Family 2: A married couple with two children who are in school. Both adults are working 40 hours per week with one making $16 per hour while the other makes minimum wage. One of these workers pays $25 per month in union dues.
Family 3: A fulltime student who only has the time to work 20 hours per week making $2 more than the minimum wage. They have a gerbil as a pet.
Part 1: Equations
Write an equation for the monthly wages of each family, including any bonuses or wage reduction.
Minimum wage = 11.50
Family 1: _____________________________
Family 2: _____________________________
Family 3: _____________________________
Part 2: Graph
Graph each equation on the same grid, using different colors to represent each family.
Answer:
Family 2: A married couple with two children who are in school. Both adults are working 40 hours per week with one making $16 per hour while the other makes minimum wage. One of these workers pays $25 per month in union dues.
Step-by-step explanation:
Don’t have to do that graphing just need the slope please
The slope and y-intercept of each line are:
13. slope = 1/2; y-intercept: 0.
14. slope = 3; y-intercept: 0.
15. slope = -2/5; y-intercept = 0.
16. slope = -1; y-intercept = 1.
17. slope = -2/3; y-intercept = -4.
18. slope = 1; y-intercept = 0.
19. 7/9
20. 3/5
How to Determine the Slope and the Y-intercept of a Line?The slope and y-intercept of a line can be determine from the given equation of a line in slope-intercept form, y = mx + b, where:
Y-intercept is represented as b.Slope is represented as m.13. y = 1/2x,
The slope = 1/2
The y-intercept of the equation is: 0.
14. y = 3x,
The slope = 3
The y-intercept of the equation is: 0.
15. y = -2/5x,
The slope = -2/5
The y-intercept of the equation is: 0.
16. y = -x + 1
The slope = -1
The y-intercept of the equation is: 1.
17. y = -2/3x - 4,
The slope = -2/3
The y-intercept of the equation is: -4.
18. y = x,
The slope = 1
The y-intercept of the equation is: 0.
19. Slope = change in y / change in x = (18 - 11)/(19 - 10)
Slope = 7/9
20. Slope = change in y / change in x = (2 -(-1))/(9 - 4)
Slope = 3/5
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bro can someone help please i’ve been struggling all day
Answer:
x = 7
Step-by-step explanation:
If ST = 65, TR= 40, and WU = 16, find the length of VW. Round your
answer to the nearest tenth if necessary.
Answer:
ST/VW = TR/WU
40/16 = 65/VW
2.5 = 65/VW
2.5VW = 65
VW = 65/2.5
VW = 26
What is the x-intercept for function f? f(x) = −2/3x + 8
Answer:
x = 12 is the x-axis intercept
Step-by-step explanation:
'x-intercept' is short for 'x-axis intercept' <==== when the graph crosses the x axis, y = 0 so put y = 0 in the equation
y = -2/3 x + 8
0 = -2/3 x + 8
-8 = - 2/3x
x = 8 * 3/2 = 12
solve the quadratic equation [tex]3x^{2} +x-5=0[/tex]
give your answers to 2 decimal places
Answer:
-1.47, 1.14 to 2 decimal places.
Step-by-step explanation:
3x^2 + x - 5 = 0
3(x^2 + 1/3x) - 5 = 0
Completing the square on the expression in the parentheses:
3[(x + 1/6)^2 - 1/36) - 5 = 0
3(x + 1/6)^2 - 1/12 - 5 = 0
(x + 1/6)^2 = 61/12 / 3
(x + 1/6)^2 = 61/36
(x + 1/6) = +/-√61 / 6
x = -1/6 +/- √61 / 6
x = 1.135, -1.468
What kind of slope is this please help!
Type: Positive
Answer: y = 3/2x + 4
Formula: Rise | up = positive | down = negative
------
Run | right = positive | left = negative
Make sure to find 2 perfect points
aight i dont know what I did, but did it helped?
Which of the following represent the solutions to | 4x + 9|> 11 ?
Answer:
x <-5 or x> 1/2
Step-by-step explanation:
I hope this helps! If it does would you please mark me brainliest?
If the area of quadrilateral SODA is 60, find the value for a.
[tex]\textit{area of a rectangle}\\\\ A=Lw ~~ \begin{cases} L=length\\ w=width\\[-0.5em] \hrulefill\\ L=a+5\\ w=a-2\\ A=60 \end{cases}\implies 60=(a+5)(a-2) \\\\\\ 60=\stackrel{F~O~I~L}{a^2+3a-10}\implies 0=a^2+3a-70 \\\\\\ 0=(a+10)(a-7)\implies a= \begin{cases} -10\\\\ 7 ~~ \textit{\LARGE \checkmark} \end{cases}[/tex]
notice, we didn't use the negative value, valid though as it is, because in this case "a" can't be negative.
a traffic light at a certain intersection is green 55% of the time, yellow 10% of the time, and red 35% of the time. a car approaches this intersection once each day. let y denote the number of days up to and including the third day on which a red light is encountered. assume that each day represents an independent trial.
The probability of the car encountering it's first red light on the third day, i.e., P(Y = 3) will be 0.1479
As per the question statement, assuming that "Y" denotes the number of days pass up to and including the first day on which the car encounters a red light, a traffic light at a certain intersection is green 55% of the time, yellow 10% of the time, and red 35% of the time and a car approaches this intersection once each day.
We are required to calculate the probability of the car encountering it's first red light on the third day, i.e., P(Y = 3)
Here, Probability of encountering a Red light = 0.35, since traffic light at the intersection is red 35% of the time.
And "Y" is the number of days that pass up to and including the first time the car encounters a red light, i.e.,
The distribution here is a geometric one, where
P(Y = 3)
= P(Not red light in initial 2 lights) * P(red light in third light)
= [(1 - 0.35)² * 0.35]
= 0.1479
Probability: It is a branch of Mathematics, that deals with the numerical descriptions concerning the extent to which an event is likely to occur, or how likely it is for a proposition to be true, and is measured by the ratio of the favorable cases to the whole number of cases possible.
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When comparing functions, such as Seth’s scenarios for travelling to school, will the function with the greatest initial value continue to be the greatest as time increases?
No. The pace of change affects the y-value, therefore having a higher beginning value does not guarantee it. The output may decrease if the function with the bigger beginning value has a slower rate of change.
This is further explained below.
What are functions?Generally, No. Even if the function had a higher beginning value, it does not always follow that it would always have a higher y-value. This is because the y-value also relies on the rate of change.
In conclusion, If the function with the higher beginning value has a slower rate of change, it is possible that the output may become smaller at some time in the future as a consequence of this.
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susan has an ear infection. The doctor prescribes a course of antibiotics. Susan is told to take 250mg dose of the antibiotic regularly every 12 hours for 20 days. Susan is curious and wants to know how much of the drug will be in her body over the course of the 20 days. She does some research online and finds out that at the end of 12 hours, about 4% of the drug is still in the body.
Answer:
400 mg
Step-by-step explanation:
There are 24 hours in a day. 250mg every 12 hours is 250x2=500.
500×20=10,000
10,000x.04=400
Given f(x) = 3x³ + kx- 10, and x - 2 is a factor of f(x), then what is the value of k?
Polynomial equations are used to encode a wide range of problems, from simple word problems to complex scientific problems. Therefore, the value of k is -7.
What are Polynomials?A polynomial is an expression in mathematics made up of coefficients and indeterminates, which are also known as variables. It can only be solved using the addition, subtraction, multiplication, and powers of positive-integer variables. For instance, x3 + 2xyz2 yz + 1 has three indeterminates. Value In both mathematics and science, polynomials are widely used. For instance, they are used to define polynomial functions, which can be found in a variety of contexts, from basic chemistry and physics to economics and social science, and they are used in calculus and numerical analysis to approximate other functions. If f(x) = 3x³ + kx- 10 , If x -2 is a factor of the given equation, then,x - 2 = 0 ⇒ x = 2, On substituting, x =2, f(x) = f (2) = 0.So, f (2) = 3(2) ³ + k2- 10 = 0⇒ 24 + 2k -10 = 0 and 2k = -14⇒ k = -14/2, so k = -7In higher mathematics, polynomials are employed to build algebraic varieties and polynomial rings, which are fundamental ideas in algebra and algebraic geometry.To learn more about Polynomials, refer to:
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The stock of Company A gained $6.65 throughout the day and ended at a value of $101.65. By what percentage did the stock rise?
Find the circumference.
Use 3.14 for π.
G
r = 3 ft
C = [?] ft
C = πd
Answer:
c=2πr
c=2π3
put it in calculator
=18.8ft (1dp)
A tailor spends $63.75 to buy 7.5 yards of satin. What is the cost of the satin fabric per yard?
Answer:
12.75
Step-by-step explanation:
21 El Carro de la maestra mago
recorre 95km con
Solo
tiene
201 de gasolina sl
17 Litros ¿cuantos km recorre
The distance it travel in 17litres petrol: 8.024km
What is Distance?
Distance is a measurement of how far apart two things or points are, either numerically or occasionally qualitatively. Distance can refer to a physical length in physics or to an estimate based on other factors in ordinary language.
Given,
The distance traveled in 201 petrol = 95km
The distance traveled in 1 liter = 95/201
= 0.472km
Now, we have to find out how many km does it travel in 17liter:
The distance traveled in 17liters = 17 x 0.472
= 8.024km
Hence, it travels 8.024km in 17 liters petrol
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Select ALL expressions equal to: -8(5y - 9)
The expression -8 (5y - 9) is equals to - 40y + 72
How to find equivalent expression?In maths, an expression is a combination of numbers, variables, functions (such as addition, subtraction, multiplication or division etc.).
In other words, a mathematical expression is any combination of numbers, letters, and relational operators.
Therefore, the following expression can be express in an equivalent form as follows:
Equivalent expressions are expressions that work the same even though they look different.
Hence,
-8 (5y - 9)
open the bracket
-8 (5y - 9) = - 40y + 72
Therefore, the equivalent expression of -8 (5y - 9) is - 40y + 72
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Find the value of z.
Answer:
it depends on what is z for, if it's for the whole triangle then i would think it would be 2z - 4 10 and 7 added or multiplied. Or it could be 2z -4 witch would be z = 2
To read 8 pages, Shirley needs 40 minutes. At that rate, how many minutes does she need to read each page
She need 5 minutes to reach each page.
What is constant rate?In mathematics, the absence of acceleration is referred to as a constant rate. A function that has a constant rate typically has a second derivative of 0.
The function would be plotted as a straight line on a piece of graph paper if the change in y (or rate) were constant. When anything moves at a fixed, steady pace or at an average speed, it is said to be moving at a constant rate, also known as a uniform rate. For instance, 3 hours pass while driving. In the first hour, it travels 30 miles, in the second hour, 45 miles, and in the third hour, 75 miles.
Given,
time she needs to read 8 pages = 40 minutes
time she needs to read 1 pages = 40/8
=5 minutes
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If you are counting the number of customers visiting your store on a given day, you are working with continuous data.
a. True
b. False
Answer:
b. False
Step-by-step explanation:
The number of costumers that visit your store is a DISCRETE variable because is the set of countable costumers. We count a whole person not parts of a person.
For a continuous variable we are allowed to take any value in an interval. In our case we can not say we had 3.4 costumers. We can say the costumer bought 3.4 gallons of gas for their car.
number or costumers →discrete variable
number of gallons of gas →continuous variable
b. False
Triangle ABC is congruent to triangle A'B'C'. Describe a sequence of rigid motions
that takes A to A', B to B', and C to C'.
The transformations that take triangle ABC to triangle A'B'C' are given as follows:
Reflection over the line y = B.
Translation up and right.
These following categories are used to group transformations on a function's graph.
Translation: The figure's position can be changed by moving to the left, right, or up/down.
Reflections: These can occur over a line or on one of the axes, shifting the direction that the figure is facing.
Rotations: Changing the figure's inclination across a degree measure.
Dilation: The scale factor is multiplied by the coordinates of the original form's vertices, affecting the side lengths of the figure.
The modifications brought about by these transitions are particularly significant in the context of this issue.
For this issue, the triangle's orientation altered, causing a reflection to take place. Since B was the bottom vertex of ABC and is now at the top of A'B'C', the line of reflection is y = B.
B and B' would be in the same place if it weren't for the reflection. A translation up and right was also utilized because A'B'C' lies above and to the right of the line of reflection.
There were no rotations or dilations because the inclination and side lengths were constant.
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Solve for x. PLS HELP MEEE
Answer: ask candice
Step-by-step explanation:
Answer:
x = 75
Step-by-step explanation:
The triangle on the right is an equilateral triangle. This means each angle is 60 degrees.
The bottom angle which goes over both triangles is marked as a right angle (90 degrees). Given that the part of that angle in the equilateral triangle is 60 degrees, the rest of the angle (i.e. the part of the angle in the other triangle) is 30 degrees.
It is implied by the markings that the angle x = the other angle at the top (although this should be clearer). Assuming this is the case, we can use the rule that angles in a triangle sum to 180 degrees, to say that:
x + x + 30 = 180
Combine like terms, rearrange and simplify:
2x + 30 = 180
2x = 150
x = 75