For this item select in the choice matrix by clicking the appropriate boxes in each row
Answers
Answer:
[tex](a):\ y = \frac{x + 3}{7}[/tex] --- Function
[tex](b):[/tex] Not a function
[tex](c):[/tex] A function
Step-by-step explanation:
Given
See attachment
Required
Determine if each relation is a relation or not
A function is represented as: [tex]\{(x_1,y_1),(x_2,y_2),(x_3,y_3)...(x_n,y_n)\}[/tex]
Where
[tex]x = domain[/tex] and [tex]y = range[/tex]
For a relation to be a function:
No x value (in other words, the domain) must be repeated
[tex](a):\ y = \frac{x + 3}{7}[/tex]
The above relation is a function. This is so because every unique value of x have a unique value of y.
In other words:
No two domains exist for a range
Conclusively, it is a one-to-one function
[tex](b):[/tex]
[tex]\begin{array}{ccccc}x & {-2} & {-2} & {1} & {3} \ \\ y & {-5} & {-1} & {3} & {7} \ \ \end{array}[/tex]
In the above table, we have:
[tex](x_1,y_1) = (-2,5)[/tex] and [tex](x_2,y_2) = (-2,-1)[/tex]
The domain (-2) points to range (5 and -1).
Based on the condition that no two domain should point to the same range, we can conclude that this is not a function.
[tex](c):[/tex]
[tex]\begin{array}{ccccc}x & {-3} & {-1} & {1} & {3} \ \\ y & {-4} & {-4} & {2} & {2} \ \ \end{array}[/tex]
In the above table, we have the domain to be:
[tex]x = \{-3,-1,1,3\}[/tex]
We can see that no x value is repeated.
Hence, this is a function.
Related Questions
Fatima conducts emissions inspections on cars. She finds that 6%, percent of the cars fail the inspection. Let C be the number of cars Fatima inspects until a car fails an inspection. Assume that the results of each inspection are independent.
Required:
Find the probability that the first failed inspection occurs on Fatima's 5th inspection.
Answers
Answer:
.05
Step-by-step explanation:
khan
The probability that the first failed inspection occurs on Fatima's 5th inspection is to be considered as the 0.05.
Calculation of the probability;
Since
Here x follow geometric (0.06)
So it can be like
p(x=4)
[tex]=0.94^4\times 0.06[/tex]
= 0.05
Hence, The probability that the first failed inspection occurs on Fatima's 5th inspection is to be considered as the 0.05.
Learn more about probability here: https://brainly.com/question/24442276
3y+6/2x y=4, and x=3
Answers
Answer:
I believe the answer is 21
Step-by-step explanation:
3•4+6/2•3
12+3•3
12+9=21
What is the GCF
of 18 and 27?
Answers
Answer:
The occurrences of common prime factors of 18 and 27 are 3 and 3. So the greatest common factor of 18 and 27 is 3 x 3 = 9.
Step-by-step explanation:
If im correct, Brainliest?
Answer:
9
Step-by-step explanation:
u can search it up lol
what is the LCM of 7 and 10
Answers
Answer: The answer is 70
Step-by-step explanation:
Help please I’m not good at math
Answers
Answer:
1,680
Step-by-step explanation:
We know a hummingbird beats its wings 420 times in 30 seconds. To find the unit rate, divide 420 by 30.
420/30
42/3
14 beats/second
Now we know a hummingbird beats its wings 14 times in 1 second. Two minutes equals 120 seconds. Multiply 14 by 120 to get the answer here.
14 * 120
(14 * 12) * 10
168 * 10
1,680 beats
Answer:
1680
Step-by-step explanation:
From the table, we can see that per each 30 seconds, a mocking bird flaps its wings 420 times.
Each minute contains 60 seconds. Therefore, in order to calculate the number of times a mockingbird flaps its wings in 2 minutes, we can
60 seconds x 2 minutes = 120
Then, we can divide this number by 30 to figure out how many times we need to multiply 420 to get our answer.
120/30 = 4
Therefore,
420 x 4 = 1680
Which expression is equivalent to 12x – 8
A -4 (3x + 2)
B-2 (-6x + 4)
C 4 (3x – 8)
D) 2 (6.c + 4)
Answers
B -2 (-6x+4)
Explanation :
Distribute each one and see which one equals 12x - 8
Hope this helps!
Sue is drawing two lines on a coordinate plane. She begins the first line at the origin and ends at (4,3). She begins the 2nd line at (0,4) and ends at (3,0). Where will these lines intersect?
PLEASE HELP
Answers
The point of intersection of the lines, if The coordinates of the first line (0, 0) and (4, 3), and The coordinates of the second line (0, 4) and (3, 0), is (1.92, 1.44).
What is a line?An object having an endless length and no width, depth, or curvature is called a line. Since lines can exist in two, three, or higher-dimensional environments, they are one-dimensional things.
Given:
The coordinates of the first line (0, 0) and (4, 3),
The coordinates of the second line (0, 4) and (3, 0),
Write the equation of the line as shown below,
The equation of the first line,
y - 0 = 3 - 0 / 4 - 0 (x - 0)
y = 3/4 x
4y = 3x
4y - 3x = 0
The equation of the second line,
y - 0 = (0 - 4) / (3 - 0) (x - 3)
y = -4 / 3 (x - 3)
3y = -4x + 12
3y + 4x = 12
Solve these equations,
x = 1.92 and y = 1.44
Thus, they intersect at (1.92, 1.44)
To know more about the line:
https://brainly.com/question/2696693
#SPJ2
Pls help I really need a good grade on this
Answers
Answer:
the 1st one. the unit rate is $21.00
can someone please help with those. press the picture for all
Answers
Answer:
proportional relationship does not exist.
proportional relationship does exist.
proportional relationship does not exist.
proportional relationship does exist.
Step-by-step explanation:
To establish proportionality :
For data 1:
y α x
y = kx ; k = proportionality constant
Take x = 1 ; y = 5
5 = k
k = 5
Hence, to obtain other data points :
y = 5x (if data is proportional ; if otherwise, the data isn't proportional).
Take ; x = 2
y = 5* 2 = 10
10 ≠ 9
Hence, data isn't proportional.
2.)
Data 2:
y α x
y = kx ; k = proportionality constant
Take x = hours 2 ; y = miles = 110
110 = 2k
k = 110/2
k = 55
Take ; x = 5
y = 55*5 = 275
275 = 275 (proportional relationship exist)
3.)
For the graph:
First graph isn't proportional
4 = 2k ; k = 4/2 = 2 ; k = 2
At x = 6
y = 6*2 = 12
From graph ; y = 8 at x = 6
Hence, proportional relationship does not exist.
4.)
For the 2nd graph:
4 = 2k ; k = 4/2 = 2 ; k = 2
At x = 6
y = 6*2 = 12
From graph ; y = 12 at x = 6
Hence, proportional relationship does exist.
(4x - 1)(3x2 + 3x – 5)
Simplify the expression to a polynomial in standard form
Answers
Answer:
12[tex]x^{3}[/tex]+9[tex]x^{2}[/tex]-23x+5
Step-by-step explanation:
Given the function f(x) = 8x+2, evaluate f(6),
Answers
Answer:
f(6)=50
Step-by-step explanation:
f(6)=8(6)+2
f(6)=48+2
f(6)=50
Answer: 50
Step-by-step explanation:
f(6) =8(6)+2
f(6)=48+2
f(6)=50
Given f(x)=4x-3, find f(-2).?
Answers
Answer:
f(-2) = -11
Step-by-step explanation:
The question is the last part says RUQ
Answers
Answer:
find the angle of the borg
Step-by-step explanation:
Answer:
cant see all of the question LOL
Step-by-step explanation:
A division problem is shown below.
Long division showing 368 divided by 23. First step 368 minus 230 equals 138. Second step is 138 minus 138 equals 0.
Enter numbers in the boxes below to show how to use partial products to divide.
Step 1:
group(s) what of 23 = 230.
Step 2:
group(s) what of 23 = 138.
Step 3: Add the partial quotients:
what + what = what
Answers
Answer:
16
Step-by-step explanation:
a, 10
Group of 10 23s gives us 230. This is so because of you arrange 23 in groups, you would need to arrange it in 10 places, to get 230.
b, 6
Group of 6 23s gives 138. Again, like stated above, arranging 23 in 6 places ends up giving us a total of 138.
Adding both together, we have
10 + 6 = 16.
This means our answer is 16. And this is rightly so. Dividing 368 by 23 gives us 16 exactly. So, 16 is the answer.
(2x+3) what is the value of x
Answers
Answer:
Step-by-step explanation:
I am sorry but please give detailed question
Consider the diagram.
What is the length of segment AB?
Answers
Which point is an x-intercept of the quadratic function f(x) = (x + 6)(x – 3)?
Answers
Answer:
x-intercepts:
(-6,0) and (3,0)
Step-by-step explanation:
x-intercept is when y=0
(0,-6) and (0,3)
Step-by-step explanation:
(0,-6) and (0,3) because the x intercept is when y=0 and if you want y to equal 0 one of the 2 parenthesis's values should equal 0 there are 2 answers because even if one of the parenthesis equals 0 the other one that is multiplied by it no matter what the value of that is equals 0. For example take (x+3)(x-4) one way to make this 0 would be for x to equal -3 or +4.
Examine rectangle JKLM, shown below.
If JN = x + 3 and JL = 3x + 1, determine which of the following values is correct
Answers
Answer:
NM = 8
Step-by-step explanation:
Given rectangle JKLM
JN = x + 3 and JL = 3x + 1
JN = 1/2JL as diagonals bisect each other and N is the midpoint of JL.
Substitute and solve for x:
x + 3 = 1/2(3x + 1)
2x + 6 = 3x + 1
3x - 2x = 6 - 1
x = 5
Find JN
JN = 5 + 3 = 8
Looking at the options, we see that
NM = JN = 8
Correct option is A
y/x^2 + y/x^3
perform the operation and express your answer as a single fraction
Answers
Answer:
[tex]\frac{y}{x^2}+\frac{y}{x^3}=\frac{yx+y}{x^3}[/tex]
Step-by-step explanation:
Given the expression
[tex]\frac{y}{x^2}+\frac{y}{x^3}[/tex]
Let us perform the operation and express your answer as a single fraction
[tex]\frac{y}{x^2}+\frac{y}{x^3}=\frac{x^3y+x^2y}{x^5}[/tex]
[tex]=\:\frac{x^2\left(xy+y\right)}{x^5}[/tex]
[tex]=\frac{\left(xy+y\right)}{x^3}[/tex]
Therefore, we conclude that:
[tex]\frac{y}{x^2}+\frac{y}{x^3}=\frac{yx+y}{x^3}[/tex]
Is -55/11 equal to -5
Is -55/-11 equal to -5
Is 55/-11 equal to -5
Is -(-55/-11) equal to -5
Answers
-55/11 = -5 True
-55/-11 = -5 False -55/-11 = 5
55/-11 = -5 True
-(-55/-11) = -5 True
which of these is the smallest number & which of these is the largest number
Answers
Answer:
A) D: 4.6
B) C: 5.12
Step-by-step explanation:
A) From the given options, the smallest number is 4.6 which is option D.
Due to the fact that the decimal sides from options A to the last are; 602, 620, 666..., 600.
This is because after the number 6, the remaining digits are assumed to be zero because there is no number attached again. The one that has 6 with dot above it means that it is a recurring decimal with 6. Thus, it can't be the smallest.
B) The largest is option C which is 5.12.
Because on the decimal sides, ranking from highest to lowest we have;
120, 111..., 102, 100. A number with dot on it means recurring decimal.
What is the sign of the product of any odd number of negative integers? Explain your reasoning.
Answers
Answer:
If there are an even number (0, 2, 4, ...) of negative factors to multiply, the product is positive. If there are an odd number (1, 3, 5, ...) of negative factors, the product is negative.
Step-by-step explanation:
Answer:
bhfxhxffkgflcvcjgcigcicyouocuofofuogpuphi the questions I will send
A barbeque restaurant serves four meats brisket chicken ribs and turkey how many two meat combo can be served for the luncheon plate
Answers
Answer:
Step-by-step explanation:
6
Pls help me fast!!!!!!!
Answers
Answer:
-x. is the answer maksjjsjsjsbbshs
I need help can someone help me
Answers
Answer:
it states to round to the tenths place for 1 which would be 1.5 because the 2 after is not 5 or above so it stays the same
it also goes for the rest that are stated in the problem
My answers:
2)76.27
3)23.494
4)8.3926
5)342.6
Answer:
You can easily round any number to any place using a simple rule. Look to the digit to the right of the digit you want to round to. If that digit is 5 or greater than 5, you round UP to the next higher digit. If the digit to the right of the digit you’re trying to round to is 4 or less, you leave the digit alone.
1. 1.528 = 1.5
2. 76.2714 = 76.27
3. 23.49382 = 23.494
4. 8.39261 = 8.926
5. 342.62984 = 342.6
PLEASE HELP ASAP WILL GIVE BRAINLEIST!!
Find the area of the composite shape.
A. 79.25
B. 71.4
C. 197
D. 394
work please if u can)
Answers
Answer is "c" cause it is
7) An ice cream factory makes 210 quarts of ice cream in 2 hours. How many
quarts could be made in 36 hours? What was that rate per day?
any kind of help would be deeply appreciated!
Answers
Answer:
3780quarts, making 105 quarts per day
Step-by-step explanation:
36 is 2x18, so 210x18 equals 3780. divide 210 by 2 to get 105
At a book sale, all paperback books cost d dollars each and all hard books cost 2d dollars each. If Kate paid 7d dollars for 5 books at this sale, how many paperback books did she buy?
Answers
Answer:
3 paperback books
Step-by-step explanation:
Let the number of paperback Kate bought be a and the number of hard books be b.
Given that she bought 5 books then
a + b = 5
Also, If Kate paid 7d dollars then
a * d + b * 2d = 7d
Divide through by d
a + 2b = 7
Hence we have 2 equations
a + b = 5
a + 2b = 7
subtract the first from the second
2b - b = 7 - 5
b = 2
since
a + b = 5
a + 2 = 5
a = 5 - 2
= 3
Recall that the number of paperback she bought is a hence this is 3
According to Euclidean geometry a plane contains at least
Answers
Answer:
According to Euclidean geometry, a plane contains at least THREE points that do not lie on the same line.
:-))
10 POINTS!!!!!
(06.01) Evaluate the expression 4³ ÷ (7 − 3) × 2. (4 points)
Pls Help Brainliest if your right! Show your work if you can please!
Answers
Answer:
My teacher doesnt even know it
Answer:
i think it is 6 if your in flvs
Step-by-step explanation:
