State whether the relation is a function: {(1,2), (2,4),(-3,-6), (0,0)). Then
explain why.
Answers
Answer:
[tex]\boxed {\boxed {\sf Yes}}[/tex]
Step-by-step explanation:
According to the definition of a function, each input must have one output.
The input is x and the output is y. Basically, for every x there can only be one y.
The relation given is:
{ (1,2) , (2,4), (-3,-6), (0,0)}
To check if it's a function, make sure each x only appears once.
The x is the first number in a point.
We see that each x (1,2,-3,0) is only listed once, so this must be a function.
Another way to check is by graphing the points and using the Vertical Line Test.
If a vertical line is drawn and crosses the function more than once at any given part of the line, it isn't a function.
The points pass the vertical line test, so this is a function.
Related Questions
The perimeter of a triangle is 43 inches. The second side is 4 times as long as the first side. The third side is 1 inch longer than the first side. What is the length of each side
Answers
Answer:
First side=7
Second side =28
Third side =8
explanation:
Perimeter of a triangle is the sum of the length of the sides of the triangle. Given that the perimeter of the triangle = 43 inches
Second side is 4 times the first side
Third side is 1 inch longer the first
Let's call the first side x
Then equation for the perimeter of the triangle is given by
x+4x+x+1=43
We solve for x
6x+1=43
6x=43-1
6x=42
x=42/6
x=7
Therefore the first side x=7, the second side is 4x= 4*7=28, third side= 1+x= 1+7=8
Solve the system of equations by substitution.
x + y = 40
y = 9x
The solution of the system is?
Answers
What is equivalent to (3-2i)^2
Answers
Answer:
13
Step-by-step explanation:
(3-2i)^2 =
9-4i^2 =
9-4(-1) =
9+4 = 13
what is the slope of line segment 7 ?
——PLEASEE HELP.!! ILL GIVE BRAINLIEST.!! *EXTRA POINTS* DONT SKIP:((———
Answers
Answer:
The slope is 0 because it is a straight line
Step-by-step explanation:
Answer:
undefined.
Step-by-step explanation:
You could be really formal and use the slope formula
The y values are both the same -- 4.
The x values are 3.5 and 6.5
Therefore the slope is (6.5 - 3.5) / (4 - 4)
The denominator is 0
The slope is undefined because 3/0 is not very well behaved.
A horizontal line always gives an undefined amount.
15 people working 5 hours per day can make 30 units of a product in 10 days. Assuming all other factors remain constant and people of the same efficiency are used to make the same products, in how many days can 10 people make 10 units of the product if each of them works 10 hours per day?
Answers
Answer:
I don't really understand it very well
It will take 10 people working 10 hours per day about 2.5 days to make 10 units of the product.
From the statement of the question; 15 people working 5 hours per day can make 30 units of a product in 10 days. Hence, the number of units that can be made in a day is;
Number of units per day = (15*5*10)/30
= 25 units/day
Now; if 10 people make 10 units, working 10 hours per day, it will take them x number of days.
x = (25*10)/10*10
x = 2.5 days
Learn more: https://brainly.com/question/22873736
what is the slope of the line through [-1,2] and [2,-3]
Answers
Answer:
-3/5
Step-by-step explanation:
to figure that out you have to do y^2 - y^1/ x^2 - x^1
2-(-1)/ -3 - 2
= 3/-5
=-3/5
A truck is carrying 102 bushels of sweet potatoes, 101 bushels of tangerines, and 103 bushels of spaghetti squash. What is the total weight of the crops?
Answers
Answer:
306
Step-by-step explanation:
Answer:
there are 305 bushels all together on the back of the truck
Step-by-step explanation:
I cannot give you the poundage of the bushels all together because you never said how much the bushels weighed
A field has a length of 6 2/3 yards and a width of 4 3/4 yards. What is the area of the field.
Answers
Answer:
Ste-by-step explanation:
That doesn’t answer it stupid
When the equation 16/x = 4 is simplified, the value of x is??
Answers
Answer: x=4
Step-by-step explanation:
multiply each side by the denominator to cancel out the fraction so the new equation is 16=4x then divide by 4 to eliminate the x and 16 divided by 4 is 4 which is the anwser.
Help please !! I need help because I have a certain amount of time so if you could help that would be great thank you!
Answers
Answer:
The one that you selected is correct. The second one.
Step-by-step explanation:
A $270 suit is marked down by 10%. Find the sale price.
Answers
270(.1) = 27
270 -27 = 243
Round 8250 to the nearest hundred.
Answers
Answer:
8300
Step-by-step explanation:
i believe it is 8300 but if im wrong let me know
Which word describes the relationship of the points (3, 1)
and (3, 6)?
O A) collinear
OB) parallel
OC) perpendicular
OD) coincident
Answers
Answer:
where is the diagram dude
i think u wolud be having a digram of it
The expression -7y is a
Term
Constant
Variable
Answers
Answer:
in -7y y is variable and -7 is Constant
Step-by-step explanation:
Constant: A number that cannot change its value. In the expression 2x+4y−9 , the term 9 is a constant. Like Terms: Terms that contain the same variables such as 2m , 6m or 3xy and 7xy
variable is a symbol which functions as a placeholder for varying expression or quantities, and is often used to represent an arbitrary element of a set.
Solve the system of equations by the elimination method: \large 9x+y=-8 and \large 4x+y=2. Then fill in the solution as an ordered pair:
Answers
Answer:
rrrrrrrrrrrrrrrrrrrrrwwwwwwwwwwwwwwwwww44444444444444wwwwwwwwwwwwww
Step-by-step explanation:
you are easydsssssdfewatg3
Please help me with THIS! :(((
Answers
Answer:
<C = <F
<B = < E
<A = < D
AB = DE
CA = FD
BC = EF
The triangles are basically the same, they are in corresponding order.
Hope I helped! Brainliest Appreciated!
if f(x)=x2+3x+5 what is f(3+h)
Answers
Match the graph shown with the following equation
Answer a and b please
Answers
Answer:
a) D b)B
Step-by-step explanation:
a) the graph is of negative slope as it slants downwards hence slop/gradient is negative. y intercept is positive so only option d is right
b) sub each option point into 3y = 2x - 1 if they equate to be the same, it is correct.
3(2) = 2(6) - 1
6 = 11 (not equal)
3(1) = 2(2) - 1
3 = 3 (equal) this is the answer
of course you can sub in the rest to confirm but I'm lazy so yeah I'll stop here
Topic: Linear Graphs and its equations
If you would like to venture further, you can check out my Instagram page (learntionary) where I post notes and mathematics tips. Thanks!
5. Guests are given a random goodie bag at a party. There are less than 15 bags, but more than 8. Part A: How many bags were prepared? Explain your answer. * Goodie bag contents ½ of the bags contain money ⅙ of the bags contain candy ⅓ of the bags contain a toy
Answers
Answer:
12 bagsStep-by-step explanation:
Number of the bags = between 8 and 15 and
1/2 of bags contain money 1/6 of bags contain candy 1/3 of bags contain a toyAs per above the number is divisible by 2, 3 and 6. LCM of the three numbers is 6.
The number between 8 and 15 and divisible by 6:
This number is 6*2 = 12So the number of bags is 12
what is 0.4 repeting as afraction
Answers
Answer:
2/5
Step-by-step explanation:
Answer:
4/9
Step-by-step explanation:
When you go to do a repeating decimal, put whatever repeats over 9. For example lets say we want .49494949 repeating it would be 49/99
however in this case we want 4 to repeat so it would be 4/9.
room is 32 ft by 40 ft. She needs to make a scale of her room that is 8 in. by 10 in. What is the scale she needs to use?
Answers
50+ POINTS!!! DUE TODAY!! PLS HELP!!
1) Only do 10-29
2) choose 10 and make word problems for them
3) Get 50+ points and BRAINLIEST
DONT ANSWER IF U DONT KNOW
Answers
Answer:
10. 4+x=3
11. 1/2/x=24
12. 2(7+x)
13. X+5=21
14. 4-(3x)
15. 1/2x(11)
16. 2x/10=7
17. X^2+18=3
18. 13-x=9
19. 9(x-43)
20. 7x^2=2
21. 12+8x
22. 1/2x-1=10
23. 7x^3=10
24. 9-3x=4
25. 4x+8=1
26. 7-x^2=1
27. 5+10x=11
28. 2(x-6)=20
29. 8-x^2=24
Step-by-step explanation:
10) 4+x=3
11) 1/2/x=24
12) 2(7+x)
13) X+5=21
14) 4-(3x)
15) 1/2x(11)
16) 2x/10=7
17) X^2+18=3
18) 13-x=9
19) 9(x-43)
20) 7x^2=2
21) 12+8x
22) 1/2x-1=10
23) 7x^3=10
24) 9-3x=4
25) 4x+8=1
I'm a simp who watches the simpsons and lives a simplistic lifestyle.
I WILL GIVE BRAINLIEST
Given ΔDEF : ΔRST, find x.
12
15
16
64
Answers
Answer:
The answer would be 12, I am very sure. :)
Please help ive been trying at this stupid question for 45 minutes now.
Answers
Answer:
25
Step-by-step explanation:
But I’m not sure tho
Hope you get it right
Is this a function or no?
Answers
Answer:
no
Step-by-step explanation:
Help please!! 15 points!!
Which set of numbers form a right triangle?
Choose all that apply
A) 4, 5, 6
B) 5, 12, 13
C) 8, 15, 17
D) 10, 15, 20
Answers
Answer:
A and D
Step-by-step explanation:
One side-base right triangle and one angle-based right triangle.
symplify the expression 3⁴÷3⁹. Select all that apply.
Answers
Answer:
C and D
Step-by-step explanation:
When you divide exponents with the same base, you just subtract the exponents.
3^4 / 3^9
4-9 = -5
3^-5
That can be rewritten into 1/3^5 and 1/243.
Mr. Stack and Coach Pugh are racing down the highway. Coach Pugh is going five miles more an hour than twice Mr. Stack's speed. If Coach Pugh is going one hundred and five miles and hour, how fast is Mr. Stack going?
Answers
Answer:
50
Step-by-step explanation:
2(Mr stack's speed) = Coach Pugh's speed - 5mph
Mr stack's speed = (105mph - 5mph)/2
Mr stack's speed = 100mph/2
Mr stack's speed = 50mph
Please help!!!!!!!!!
Answers
Answer:
8/125
Step-by-step explanation:
A hemispherical bowl is made of brass has an inner diameter 35 cm. What is the inner surface area? URGENT
Answers
Answer:
The inner surface area is: 1923.25 cm²
Step-by-step explanation:
A hemispherical bowl is made of brass has an inner diameter of 35 cm.
i.e. d = 35 cm
As the radius is basically half of the diameter.
r = d/2
= 35/2
= 17.5 cm
The inner surface area of a hemispherical bowl = 2πr²
= 2(3.14)(17.5)²
=1923.25 cm²
Therefore, the inner surface area is: 1923.25 cm²