Formula Used:
Percentage = (Smaller Value / Actual Value)*100
Finding the percentage:
Percentage = (190/570) * 100
Percentage = (0.333) * 100
Percentage = 33.3%
A function is defined by the set of ordered pairs {(-2,3),(-1,4),(0,5)}. Which ordered pair below, if added to this set, would create a set that no longer represents a function.
1) (1,5)
2) (3,-2)
3) (-1,-4)
4) (-4,-1)
Answer: 3) (-1,-4)
Step-by-step explanation:
We define a function as a relationship that maps elements from one set (inputs) into elements of another set (outputs).
The functions have one important rule, each element in the domain (the set of possible inputs) can be mapped into only one element in the range (set of possible outputs).
Then if we have:
a ≠ b
and for an input x0.
f(x0) = a
and
f(x0) = b
this is not a function, as it maps the value x0 into two different values.
Then we know that the points {(-2,3),(-1,4),(0,5)} define our function.
Then the option that makes this relation to not be a function, will be any point that has the same input as some of the above ones, and different output.
the correct one is 3) (-1, -4)
Then the set will be:
{(-2,3),(-1,4),(0,5), (-1, -4)}.
Now we have two times the input -1, and different outputs, then this is not a function.
(-1, -4) would create a set that no longer represents a function.
Note that a relation is a function if each value of x is matched to only one value of x.
A relation does not qualify to be a function if one value of x is matched to more than one value of y.
For a function defined by the set of ordered pairs {(-2,3),(-1,4),(0,5)}:
The addition of an x-value that is already in the function will make the x-value to be matched to more than one y-value. This will disqualify the relation from being a function.
By considering the options given:
The option (-1, -4) would create a set that no longer represent a function because at x = -1, the values of y will be 4 and -4, which will make the graph fail the vertical line test
Learn more on functions here: https://brainly.com/question/10439235
89 POINTS!!! You are given an isosceles trapezoid ABCD with median XY. Complete the following.
m∠DCB = 105, m∠DAB = 75
Answer:
(Given m∠DCB = 105, m∠DAB = 75) m∠ADC=75, m∠AXY=105, m∠DYX=105, m∠BXY=75, m∠CYX=75, m∠ABC=105
Step-by-step explanation:
Definition of consecutive interior angles
Answer:
Step-by-step explanation:
Government data assign a single cause for each death that occurs in the United States. The data show that the probability is 0.27 that a randomly chosen death was due to heart disease, and is 0.23 that it was due to cancer. What is the probability that a death was due to either heart disease or cancer
Answer:
0.50
Step-by-step explanation:
To answer this question, we have the following data available:
Probability of randomly chosen death caused by a heart disease = 0.27
Probability of randomly chosen death caused by cancer = 0.23
We are to calculate the probability that the death was as a result of either cancer or heart disease.
P(cancer or heart disease)
= 0.27 + 0.23
= 0.50
Thank you!
A local pizza shop has a membership program for frequent buyers. The membership costs $5 per month and members get a discounted price of $2 per slice of pizza. Chase purchased a membership to this pizza shop. How much would Chase have to pay the pizza shop if he bought 19 slices of pizza this month? What would be the monthly cost for xx slices of pizza?
Answer:
for the one with 19 it is 5+2x and x is 19 so 2x19=38 and 38+5=43 the answer for this month is 43 for the second one is 5+2x=y with x being how many slices and y is how much it cost in total
Step-by-step explanation:
u r welcome ;)
Answer:
it would cost him $9.5 dollars.
Step-by-step explanation:
The value of y varies directly
Which function represents the
relationship between x and y if y =
14 when x =
7/2
Answer:
Step-by-step explanation:
Answer is 7/3
The function that represents the relationship between x and y is (y = 4x) and this can be determined by using the given data.
Given :
The value of 'y' varies directly with 'x'.If y = 14 when x = 7/2.The following steps can be used in order to determine the function that represents the relationship between x and y:
Step 1 - According to the given data, the value of 'y' varies directly with 'x'. So, the mathematical expression for this situation is:
[tex]y \; \alpha \; x[/tex]
y = kx --- (1)
Step 2 - It is also given that the value of y = 14 when x = 7/2.
Step 3 - Now, substitute the value of 'y' and 'x' in the above expression.
[tex]\rm 14=\dfrac{7}{2}\times K\\[/tex]
K = 4
Step 4 - Now, substitute the value of K in the expression (1).
y = 4x
For more information, refer to the link given below:
https://brainly.com/question/12917806
Ella and some friends are going to a movie. Each movie ticket costs $5. Create an equation that shows the relationship between how many friends, n, attend the movie and the total cost in dollars, c.
2
Answer:
Step-by-step explanation:
Cost of one ticket = $ 5
Cost of 'n' tickets = 5 * n = 5n
c = 5n
Answer:
5n=c
Step-by-step explanation:
so we would times 5 with how many friends she has
That would be her total cost
what is the slope of (-7,-13) and (1, -5)
I think the slope is 1. hope that helps
5 1/2 times 3 3/4 i need help pls send help
Answer:
20.625 is the answer
For questions 8-11, solve for x.
Answer:
Bruh
Step-by-step explanation:
Im so confused.... lol im not any help
What you're looking for is to simplyfy the like terms and then isolate the variable. So basically, write everything down and solve it like normal. We know that straight lines are worth 180° and right angles are 90° so that's what's gonna be on one side of the equal sign, and all the other numbers on the other side. Like this:
8.
180 = x + 1 + 3x + 9
180 = 4x + 10
170 = 4x
42.5 = x
If it's hard to see what I'm doing, just write the first part out and solve like regular algebra then check if you got the same answer.
Good luck :)
A vine maple grows fast when it is planted under the cover of cedar trees. One month after it is planted it has grown 9 inches, and after eight weeks it had grown 14 inches.
Write an equation that models the growth, in inches, of the vine maple as a function of time, in weeks
Answer:
[tex]y=\frac{5}{4} x+4[/tex]
Step-by-step explanation:
Using y = mx+c
m= [tex]\frac{y^{2}-y^{2}}{x^{2}-x^{1}}[/tex]
m=[tex]\frac{14-9}{8-4}[/tex]
m=[tex]\frac{5}{4}[/tex]
c=y-intercept
The question says that at 8 weeks the maple had grown 14 inches
By using y=mx+c we can find the y-intercept using one of the points as the x and y values and by using the slope
[tex]14=8\times\frac{5}{4} +c[/tex]
14=10+c
14-10=10+c-10
4=c
y-intercept = 4
Therefore the full equation is
[tex]y=\frac{5}{4} x+4[/tex]
Classify the triangle based on the side lengths 9, 40 and 41.
Answer: right triangle
Step-by-step explanation: 9, 40, and 41 are examples of Pythagorean triples.
Can someone help me solve for x
Answer:
x=58 degrees
Step-by-step explanation:
A line is 180 degrees. So x+90+32=180. 32+90=122. Now you do 180-122 and you will get 58.
there are 135 teams in a soccer tournament. each team has 32 players. how many soccer players in all are in the league
The estimated quotient of 718/6 is
72
80
90
120
Pedro opened a deli in December. The table shows his profits and losses during his first four months of business. Month Profit/Loss ($) December + 724.37 January + 3,912.26 February - 1,051.51 March - 4,023.02 What is the overall profit or loss for the first four months the deli was open?
Answer:
437.90
Step-by-step explanation:
you add the negative numbers together, then the positive numbers. you take the answers from those and subtract them from each other.
The overall loss for the first four months the deli was open is $-437.90.
A firm has a profit when its income is greater than the cost. A loss is recorded when income is less than the total costs. A profit is represented with a positive sign (+) and a loss is represented with a negative sign (-).
In order to determine the overall profit or loss for the first four months add profits and subtract losses.
+ 724.37 + 3,912.26 - 1,051.51 - 4,023.02 = $-437.90.
Costs exceeds revenue so the Deli earns a loss of $437.90.
To learn more about addition, please check: https://brainly.com/question/349488
Hallar el valor de las expresiones siguientes, alguien que sepa?
a). 532 x 0.184
b). 0.72183/0.0095
c). (18.65)^4
Answer:
a
Step-by-step explanation:
A store owner wants to advertise his store in magazines that most of his shoppers are likely to read. He takes a survey to determine the ratio of females to males that shop at his store each day. The chart below represents the number of females and males that shop at his store on average each day. Which statement identifies the ratio of females to males that shop at his store and who he should focus his advertising on? He should focus on females because the ratio of females to males is 5:3. He should focus on males because the ratio of females to males is 2:5. He should focus on females because the ratio of females to males is 5:2. He should focus on males because the ratio of females to males is 3:5.
Answer:
5:2
Step-by-step explanation: And if you play rob lox i can see by your pfp my user is 14kLemons
Answer:
5:2
Step-by-step explanation:The GCF of 25 and 10 is 5 so divide them both by 5 then you get 5:2
Alison has read 45% of her book. If she read 81 pages, how many pages are in the book? PLEASE HURRY!!!!
Answer:
Im not sure but I think it is 172! I hope this helped!!
Step-by-step explanation:
3. 5 points
(2) There are two shades of light blue paint getting mixed. Mixture A is made with 5 cups of blue paint and 2 cups of white paint. Mixture B is made with 10 cups of blue paint and 6 cups of white paint. Which mixture is a lighter shade of blue? *
Mark only one oval.
Mixture A
Mixture B
Both make the same shade of blue.
With an explanation please.
Answer:
Mixture B
Step-by-step explanation:
Please Help! Knowing the negative sign (–) also means "opposite", how do you we read this expression, -8 • 2?
A store sells a package of 25 trading cards for $5.25. Use pencil and paper. Explain how you can tell that the unit price per card is less than $1. What is the unit price per card?
Answer:
21 cent per card
Step-by-step explanation:
5.25 / 25 = .21
because 25 can be divided into the first 2 numbers
If y varies directly as x and as the square of z, and y =
25
when x = 5 and z = 1, find y when x = 1 andz = 4
9
Answer: The answr is y=5/36 If my math is correct
Since the question is y=25/9 and x was 5 and z was 1, I thought 5 x 5 is 25, so x is 5. and 1 x 9 is 9 so z is 9. so then i multiplied 9x4 for z and 5 x 1 for x
To find the y intercept of the graph of a linear equation we.
a. set x equal to 0 and solve the equation for x.
b. set x equal to 0 and solve the equation for y.
c. set y equal to 0 and solve the equation for x.
d. set y equal to 0 and solve the equation for y.
e. none of the above
Answer:
B
Step-by-step explanation:
A y-intercept's x will always be zero, there is no movement along the horizontal axis. Since you are looking for a y-intercept, you will solve for y.
Please helpppppp NEED ANSWERS ASAP
Answer:
Step-by-step explanation:
if i new i would tell you but im haveing the same problem
A robot can complete 7 tasks in 3/5
hour. Each task takes the same amount of time.
a. How long does it take the robot to complete one task?
b. How many tasks can the robot complete in one hour?
Answer:
1 and 2/3 tasks
Step-by-step explanation:
a) A robot can complete 7 tasks in 3/5 hours.
This means ;
7 tasks = 3/5 hours
1 task = ?
perform cross- multiplication as;
{1*3/5} /7
3/35 hours
b)
3/5 hours = 1 task
1 hour = ?
{1*1} / 3/5
1 / 3/5
1 * 5/3
1 and 2/3 tasks
Help me with this question pleasseee
Surface area of cuboid 20 mm 8mm 11mm
Answer:
936mm^2
Step-by-step explanation:
Surface area of cuboid 20 mm 8mm 11mm
Surface area of the cuboid=2(20×8+8×11+11×20)
=2(160+88+×220)
=2(468)
=936mm^2
So the answer is936mm^2
Find the slope of the graph of the equation
-6x – 12y = -24. Write equation in slope-
intercept form, then be clear and specify
the slope.
Answer:
y=-1/2x+2
Step-by-step explanation:
slope is -1/2 beware this is a negitive slope so it goes down like this \
go one up and go to the left 2 times and connect the dots
what is the factorization of the polynomial below
-x^2 - 15x - 56
Answer:
Step-by-step explanation:
This is more easily understood if you take out a common factor of -1
-1(x^2 + 15x + 56)
7*8 = 56
7 + 8 = 56
-1 (x +8)(x+7)
I need help with this word problem it’s urgent please help.
Rubbing alcohol contains 70% isopropyl alcohol. Suppose you are adding 180ml of liquid that contains 45% isopropyl alcohol. How much liquid should be added of the higher concentration to obtain rubbing alcohol that is 70% isopropyl alcohol?
Starting with some solution of volume v and an alcohol concentration of 100c % , if you add 180 mL of 45% isopropyl to it, you get a mixture with a total volume of 180 mL + v.
Each mL of the starting solution contains c mL of alcohol. For example, if the concentration of the starting solution is 80% (so c = 0.8), then each mL contains 80% = 0.8 of one mL of alcohol.
Similarly, each mL of the added solution with 45% concentration contains 0.45 mL of alcohol.
You want the new solution to have a concentration of 70%, so that the ratio of the amount of alcohol in it to the total volume is 70%, meaning
cv + 0.45 (180 mL) = 0.7 (180 mL + v)
and you want to solve for v :
cv + 81 mL = 126 mL + 0.7v
cv - 0.7v = 126 mL - 81 mL
(c - 0.7) v = 45 mL
v = (45 mL) / (c - 0.7)
Judging by context clues, c lies somewhere between 0.7 and 1. (It can't be less than 0.7 because mixing this solution with any other solution of smaller concentration will never yield a solution of higher concentration.)
If, for example, c = 0.8, so that your starting solution is at 80% concentration, then you would need
v = (45 mL) / (0.8 - 0.7) = 450 mL
to be mixed with 180 mL of 45% solution to end up with 180 mL + 450 mL = 630 mL of 70% solution.
As another example, if you're mixing pure alcohol, so that c = 1, you would need
v = (45 mL) / (1 - 0.7) = 150 mL
to make a 180 mL + 150 mL = 330 mL batch of 70% solution. The fact that you would need less of a higher concentration solution is not surprising.