If a different number in domain of a function have different outputs the function is called?

Answers

Answer 1

A function is a rule that assigns each input exactly one output. We call the output the image of the input. The set of all inputs for a function is called the domain.

A function is one-to-one if no two elements in the domain correspond to the same element in the range.

Thus, if a different number in the domain of a function has different outputs the function is called a one-to-one function


Related Questions

Which mathematical property is demonstrated?5 • 7 • 4 = 5 • 4 • 7commutative property of additioncommutative property of multiplicationassociative property of additionassociative property of multiplication

Answers

[tex]5\cdot7\cdot4=5\cdot4\cdot7[/tex]

What we can observe in equality is the commutative property of multiplication.

The answer would be Commutative Property of Multiplication

what is the value of x would make lines l and m parrallel

Answers

Parallel lines

We know that if l and m are parallel there might be some angles that are equal to others:

Alternate interior angles

The angles closed by a blue circle are alternate interior angles, then they should be equal if l||m.

Vertcial angles

The angles closed by an orange circle are vertical angles, because they are opposite to each other on two crossed lines.

Now, we know two angles of the triangle of the middle:

We know that the addition of all the inner angles of a triangle is 180º. This is:

50º + 55º + xº = 180º

105º + xº = 180º

Now, we can find x:

105º + xº = 180º

xº = 180º - 105º

xº = 75º

Answer: xº = 75º

Not ConnectedThunde...lt BridgeNot Connected2 (07.01 HC)answer the following question. Find the value of sin x and cosy. What relationship do the ratios of sin x® and cos yº share?

Answers

The given triangle is a right-angled triangle.

Consider PO is Hypotenuse.

By using the Pythagoras formula, we get

[tex]PO^2=8^2+6^2[/tex]

[tex]PO^2=64+36[/tex][tex]PO^2=100=10^2[/tex][tex]PO=10[/tex]

Consider the angle x:

Recall the sine formula

[tex]\sin \theta=\frac{Opposite\text{ side}}{\text{Hypotenuse}}[/tex]

Substitute Opposite side =6 and Hypotenuse=10, we get

[tex]\sin x^o=\frac{6}{10}[/tex]

[tex]\sin x^o=\frac{3}{5}[/tex][tex]\text{Use sin }36.869=\frac{3}{5}[/tex]

[tex]\sin x^o=\sin 36.869[/tex][tex]x^o=37[/tex]

Consider the angle y:

Recall the sine formula

[tex]\sin \theta=\frac{Opposite\text{ side}}{\text{Hypotenuse}}[/tex]

Substitute Opposite side =8 and Hypotenuse=10, we get

[tex]\sin y^o=\frac{8}{10}[/tex]

[tex]\sin y^o=\frac{4}{5}[/tex]

[tex]\text{Use }\sin 53.13^{}=\frac{4}{5}[/tex]

[tex]\sin y^o=\sin \text{ 53.13}[/tex][tex]y^o=53^{}[/tex]

Hence the required values are

[tex]x^o=37^o[/tex][tex]y^o=53^o[/tex]

will you kindly assist me pls. work math step by step answer in numbers pls. to work how you got the answer

Answers

Translating for numbers, we have:

[tex]\frac{1}{5}=0,2\rightarrow3\frac{1}{5}=3,2[/tex]

This way, we can make what follows:

[tex]Day_1+Day_2=3\frac{1}{5}+4=3,2+4=7,2_{}[/tex]

Calculating now the amount is needed to complete the 9 miles:

[tex]Day_3=9-7,2\text{ = 1,8}[/tex]

--------------------------------------------------------------------------------------------------------

And from here, the solution with the fractions.

We can start with the sum of what Shelly has biked in the first two days:

[tex]Day_1+Day_2=3\frac{1}{5}+4=7\frac{1}{5}_{}[/tex]

This is the amount of mile she has already biked. But we know she needs to complete all the 9 miles in the third day. So, the difference from 9 and the amount she already did is the amount she needs to bike in the third day.

[tex]\text{Day}_3\text{ = 9 - 7}\frac{1}{5}\text{ = 1}\frac{4}{5}[/tex]

Simple calculator test - determine the angle, θ, to the nearest whole degree from each of the following:A. cos(θ) = 0.2079B. tan(θ) = 0.2126C. sin(θ) = 0.5446

Answers

Step 1

Find the value of θ using the inverse sign of all the functions.

A)

[tex]\begin{gathered} cos(\theta)=0.2079 \\ \theta=\cos^{-1}(0.2079) \\ \theta\approx78^{\circ} \end{gathered}[/tex]

B)

[tex]\begin{gathered} tan(\theta)=0.2126 \\ \theta=\tan^{-1}(0.2126) \\ \theta\approx12^{\circ} \end{gathered}[/tex]

C)

[tex]\begin{gathered} sin(\theta)=0.5446 \\ \theta=\sin^{-1}(0.5446) \\ \theta\approx33^{\circ} \end{gathered}[/tex]

The points scored on a test for a sample of 39 students are summarized in the following table

Answers

the mean score of the test for sample of 39 students is 76.92.

The data is given as:

Number of students       Score of each student       Total score

            07                                       90                              630

             17                                       80                             1360

             11                                        70                               770

            04                                       60                              240

The total number of students = 7 + 17 + 11 + 4

n = 39

Total scores = 630 + 1360 + 770 + 240

T = 3000

Mean score = T / n

M = 3000 / 39

M = 1000 / 13

M = 76.92

Therefore, the mean score of the test for sample of 39 students is 76.92.

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How to round off 18,600 to the nearest 10,000

Answers

Answer:

The nearest 10,000 is;

[tex]20,000[/tex]

Explanation:

We want to round off the given number to the nearest 10,000.

[tex]18,600[/tex]

We will find the closest ten thousand to the given number;

[tex]18,600\rightarrow20,000[/tex]

Therefore, the nearest 10,000 is;

[tex]20,000[/tex]

3. The difference of two-thirds of a number x and6 is at least -24. Which inequality represents allpossible values for x?

Answers

We will solve as follows:

The expression represented in the text is:

[tex]\frac{2}{3}x-6\ge-24[/tex]

Now, we solve for x:

[tex]\Rightarrow\frac{2}{3}x\ge-18\Rightarrow2x\ge-54[/tex][tex]\Rightarrow x\ge-27[/tex]

So, the solution is x >= 27. [Option D]

Which values has three significant figures?14001001101.22310

Answers

a) 1400 has 2 significant figures, zeros are no consider as significant figures

b) 1001 has 4 significant figures, zeros in between two nonzero numbers are significant figures

c) 101.2 has 4 significant figures, zeros in between two nonzero numbers are significant figures. Nonzero number are significant figures

d) 2310 has three significant figures. 2,3 and 1 are significant figures.

24 2. Which two teams have equivalent ratios of wins to losses? Team Wins Losses Leopards 15 10 Pirates 12 8 Knights 14 7 Lions 18 10

Answers

The ratio wins to losses of each team are:

[tex]\begin{gathered} \text{Leopards:}\frac{15}{10}=\frac{3}{2} \\ \text{ Pirates:}\frac{12}{8}=\frac{3}{2} \\ \text{Knights:}\frac{14}{7}=2 \\ \text{Lions:}\frac{18}{10}=\frac{9}{5} \end{gathered}[/tex]

Then, Leopards and Pirates have the same ratio

Latrice eamns 5 points for each question she answers correctly. Her grade, g is described by g = 5c, where c is the number of questions answered correctly. What is the dependent variable-Number of points per question-total grade-number of questions missed-number of questions right

Answers

Answer:

Explanations:

The equation that describe's Latrice grade is given by:

g = 5c

g represen

what scale factor or multiplier of the dilation below

Answers

Given:

The triangle ABC is similar to the triangle A'B'C'

So, the corresponding sides are proportions

So, the factor of dilation will be:

[tex]\frac{A^{\prime}B^{\prime}}{AB}=\frac{8}{12}=\frac{2}{3}[/tex]

so, the answer will be 2/3

write an extended proportion to indicate the proportional corresponding sides of the triangles

Answers

The correct extended proportion is:

[tex]\frac{MN}{RS}=\frac{MP}{RT}=\frac{NP}{ST}[/tex]

Since the other two options have some non-correspondant proportions.

(k²-7k+ 10) ÷ (k − 1)

Answers


k2−7k+10
k−1
k2−5k−2k+10
k−1
k(
k2
k−
5k
k)+2(−
2k
2+
2·5
2)
k−1

The ratio of the length of an airplane wing to its width is 9 to 1. If the length of a wing is 43.9 metérs, how wide must it be? The airplane wing must be ____ meters wide. (Round to the nearest hundredth.)

Answers

To compute the width of the wing, we can use the next proportion

[tex]\frac{9\text{ meters long}}{43.9\text{ meters long}}=\frac{1\text{ meter wide}}{x\text{ meters wide}}[/tex]

Solving for x,

[tex]\begin{gathered} 9\cdot x=1\cdot43.9 \\ x=\frac{43.9}{9} \\ x=4.88 \end{gathered}[/tex]

The airplane wing must be 4.88 meters wide.

claudia earns overtime pay when she works more then 40 hours in a week how many hours of overtime pay did she work for the week of march 4march 4-10march 4 -- 8.5march 5 -- offmarch 6 -- 9.25march 7 -- 8.75march 8 -- 10march 9 -- offmarch 10 -- 7.75A.44.25B. 40.0C. 4.25D. 2.25

Answers

She earns overtime pay when she works more than 40 hours in one week . The number of overtime pay she works for the weeks of march 4 can be calculated below

[tex]\begin{gathered} \text{total hour worked =}8.5\text{ +9.25+8.75+10+7.75=}44.25 \\ \text{The number of overtime pay for the w}eek\text{ of march 4 is 44.25} \end{gathered}[/tex]

whats the variance and the standard deviation of the data set 6,9,2,5,4,10,3,12,2,7,7,8

Answers

Given:

6,9,2,5,4,10,3,12,2,7,7,8

Required:

To find the variation and standard deviation of the given data set.

Explanation:

Now variation is

[tex]s^2=\frac{\sum_{i\mathop{=}1}^n(x_i-x)^2}{n-1}[/tex]

The numerator in the above is sum of the square of the given data.

Therefore,

[tex]\begin{gathered} =(6-6.25)^2+(9-6.25)^2+(2-6.25)^2+(5-6.25)^2+(4-6.25)^2+(10-6.25)^2+ \\ (3-6.25)^2+(12-6.25)^2+(2-6.25)^2+(7-6.25)^2+(7-6.25)^2+(8-6.25)^2 \end{gathered}[/tex]

[tex]\begin{gathered} s^2=\frac{112.25}{12-1} \\ \\ =\frac{112.25}{11} \\ \\ =10.2045 \end{gathered}[/tex]

Final Answer:

[tex]10.2045[/tex]

Gaby's piggy bank contains quarters and nickels worth $7.50. If she has 58 coins in all, howmany of each does she have?

Answers

let the number of quarters = x , and the number of nickels = y

quarter = $0.25 and nickel = $0.05

So, x + y = 58

x = 58 - y

and 0.25 x + 0.05 y = 7.5

so,

0.25 (58 - y) + 0.05 = 7.5

14.5 - 0.25 y + 0.05 y = 7.5

-0.2 y = -7

y = -7/-0.2 = 35

x = 58 - 35 = 23

So, the number of quarters = 23 and the number of nickels = 35

SaveSubmitD23567*9TO111213Which point represents the approximate location of V28?esApoint AB)point BpointD)point DHelp me almost done and tried

Answers

[tex]\begin{gathered} \sqrt[]{28}>\sqrt[]{25} \\ \sqrt[]{28}>5 \end{gathered}[/tex]

Thus, the point which represent square root of 28 should lie between 5 and 6 which is point B.

Thus, option (B) is correct.

Gifty works out that the material for a dress cost R dollar per meter and 3 meters are required for the dress. Acessories cost $50.00. what is the total amount of money Gifty will need to spend on the dress in terms of R? If Gifty has $4000 to spend on her dress including accessories, what is the maximum value of R?

Answers

We are given that

Cost of dress per meter = $R

Total cost of dress = $ 3R

Cost of Acessories = $50

We want to find:

Part A

The total amount of money Gifty will need to spend on the dress in terms of R

To find the total amount, we just add up

Let T denotes the total amount of money

[tex]\begin{gathered} T=3R+50 \\ \end{gathered}[/tex]

Thus, the total amount is $ (3R + 50)

Part B

If Gifty has $4000 to spend on her dress including accessories, what is the maximum value of R?​

We only need to equate T to 4000 and solve for R

[tex]\begin{gathered} T=4000 \\ 3R+50=4000 \\ 3R=4000-50 \\ 3R=3950 \\ R=\frac{3950}{3} \\ R=1316.666667 \\ R=1316.67\text{ (to 2 decimal places)} \end{gathered}[/tex]

Thus, the maximum value of R is $1316.67

The probability that VSU and KSU both win a basketball game in the same week is 47%. Theprobability that VSU wins is 50%. What is the probability that KSU will win given that VSUhas already won?

Answers

EXPLANATION

Let the probability that KSU will win a game be Pr(A), and let the probability that VSU wins be Pr(B). Therefore;

[tex]\begin{gathered} Pr(A\cap B)=0.47 \\ Pr(B)=0.5 \end{gathered}[/tex]

We can then use the conditional probability formula below.

[tex]Pr(A|B)=\frac{Pr(A\cap B)}{Pr(B)}[/tex]

Therefore, the probability that KSU will win given that VSU has already won becomes

[tex]Pr(A|B)=\frac{0.47}{0.50}=0.94[/tex]

Answer: 0.94

I'll send you the pic

Answers

1. 5 (3) = 15

2. 4 (8) = 32

3. 6 (3/2) = 9

4. 12 ( ) = ?

Han spent a total of $221.76, before tax, on bags of chips for the basketball team, and each bag cost $3.52. What is the total number of bags of chips that Han bought?

Answers

Given:

a.) Han spent a total of $221.76, before tax, on bags of chips for the basketball team.

b.) Each bag cost $3.52.

Let's determine the number of bags of chips bought.

[tex]\text{ No. of bags of chips bought = }\frac{\text{ Total cost}}{\text{ Price of each bag}}[/tex][tex]\text{ = }\frac{\text{ 221.76}}{\text{ 3.52}}[/tex][tex]\text{ = 63}[/tex]

Therefore, Han bought 63 bags of chips for the basketball team.

The answer is 63.

.
A culture of bacteria has an initial population of 220 bacteria and doubles every 8
hours. Using the formula Pt = Po · 2a, where P is the population after t hours, Po
is the initial population, t is the time in hours and d is the doubling time, what is the
population of bacteria in the culture after 11 hours, to the nearest whole number?

Answers

The population of bacteria in the culture after 11 hours is 581 using the exponential decay formula.

What is meant by population?

The total number of people living in a particular area, such as a city or town, region, country, continent, or the entire world, is typically referred to as the population. Governments frequently conduct censuses to estimate the number of residents living within their jurisdiction. A census is a process for gathering, analyzing, compiling, and releasing statistics regarding a population.

A culture of bacteria has an initial population of 220 bacteria, which doubles every eight hours, according to the information provided.

By applying the formula,

P(t)=P₀.[tex]2^{t/d}[/tex]

P(t) is the population at the end of t hours.

P0 is the starting populace.

d is the doubling time, while t is the time in hours.

After 11 hours, we are asked to determine the bacteria population.

First, we will enter the following values in the doubling life formula as substitutes:

P(t)=220([tex]2^{t/8}[/tex])

Now we will substitute t=11 in our formula to find the population of bacteria after 11 hours as follows:

P(11)=220([tex]2^{17/8}[/tex])

P(11)=220([tex]2^{1.4}[/tex])

P(11)=220(2.639015822)

P(11)=580.5834807≈581

P(11)=581

Consequently, after 11 hours, there will be 581 bacteria.

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What are the coordinates of point P on the directed line segment from R to Q such that 5 Pis 6 the length of the line segment from R to Q? Round to the nearest tenth, if necessary. A (-3.5, 2.3 ) B. (3.5, -2.3 ) C. (-3, 2) D. (3, 2)

Answers

Answer

Option A is correct.

P(x, y) = (-3.5, 2.3)

Explanation

Mathematically, if a point P(x, y) divides the coordinates R(x₁, y₁) and Q(x₂, y₂) internally in the ratio m:n then point P(x, y) is given as

x = [(mx₂ + nx₁)/(m + n)]

y = [(my₂ + ny₁)/(m + n)]

For this question,

R(x₁, y₁) and Q(x₂, y₂) = R (4, -1) and Q (-5, 3)

m:n = 5:1 (5/6 of a distance divides the two parts of the distance into 5/6 and 1/6, hence, the ratio is 5:1)

x₂ = -5

x₁ = 4

y₂ = 3

y₁ = -1

m = 5

n = 1

x = [(mx₂ + nx₁)/(m + n)]

x = [(5×-5 + 1×4)/(5 + 1)]

x = [(-25 + 4)/(5 + 1)]

x = (-21/6)

x = -3.5

y = [(my₂ + ny₁)/(m + n)]

y = [(5×3 + 1×-1)/(5 + 1)]

y = [(15 - 1)/(5 + 1)]

y = (14/6)

y = 2.3

P(x, y) = (-3.5, 2.3)

Hope this Helps!!!

Example 10 in. 20 in. A carpenter builds the table shown. If the floor is level, how likely is it that a ball placed on the table will roll off? 20 in. 10 in.

Answers

According to the given image, the table has a flat surface, whcih means the ball would not roll off because there's no slope or inclination. Also, assuming that there's no other forces being applied, the ball should not roll off.

Consider the quadratic function.What are the x-intercepts and y-intercept?What is the equation of the axis of symmetry?What are the coordinates of the vertex?Graph the function on the coordinate plane. Include the axis of symmetry.

Answers

Kindly check below

1) Let's do it in parts.

a) We can find the x-intercepts by using the factor zero property from each factor. Like this:

[tex]\begin{gathered} -(x+4)=0\Rightarrow-x-4=0\Rightarrow-x=4\Rightarrow x=-4 \\ (x-1)=0\Rightarrow x=1 \end{gathered}[/tex]

The best way to find the y-intercept with this factored form is by plugging into that equation x=0

[tex]\begin{gathered} f(x)=-\left(x+4\right)\left(x-1\right) \\ y=-\left(x+4\right)\left(x-1\right) \\ y=-(0+4)(0-1) \\ y=-(4)(-1) \\ y=4 \end{gathered}[/tex]

b) Expanding those factors by distributing them (FOIL) we can find this:

[tex]\begin{gathered} f(x)=-\left(x+4\right)\left(x-1\right) \\ f(x)=-\left(xx+x\left(-1\right)+4x+4\left(-1\right)\right) \\ f(x)=-x^2-3x+4 \end{gathered}[/tex]

So now, let's find the x-coordinate of the vertex V(h,k):

[tex]\begin{gathered} h=\frac{-b}{2a}=\frac{-(-3)}{2(-1)}=\frac{3}{-2}=-\frac{3}{2} \\ Axis\:of\:symmetry:x=-3/2 \end{gathered}[/tex]

c) The coordinates of the vertex can be found by plugging the x-coordinate into the quadratic function. This way:

[tex]\begin{gathered} f(x)=-\left(x+4\right)\left(x-1\right) \\ f(-\frac{3}{2})=-(-\frac{3}{2}+4)(-\frac{3}{2}-1)=\frac{25}{4} \\ \\ V(-\frac{3}{2},\frac{25}{4}) \end{gathered}[/tex]

d) Finally, we can plot that function by setting a table:

So plotting these points (-2,6),(-1,6), (0,4), (1,0),(2,-6) and opening down the parabola for a is -1 we can plot this:

- 16m’n-(-25m’n)+(-7m’n)Which of the following is equivalent to the expression above?

Answers

As a rule , - times - = + and - times + = -

[tex]\begin{gathered} -16m^2n-(-25m^2n)+(-7m^2n\text{ ) } \\ =-16m^2n+25m^2n-7m^2n\text{ ( based on the rule above )} \\ =+9m^2n-7m^2n\text{ ( -16 + 25 = + 9 )} \\ =+2m^2n \end{gathered}[/tex]

Therefore the correct answer to the question is 2m squared n

the sum of 2 numbers is 75. the second number is 3 less than twice the first. find the numbers

Answers

SOLUTION

Let one of the numbers be x

Using the statement: The second number is 3 less than twice the first

Then the second number is

[tex]2x-3[/tex]

Since, the sum of 2 numbers is 75

It follows:

[tex]x+2x-3=75[/tex]

Solve for x

[tex]\begin{gathered} 3x=75+3 \\ 3x=78 \\ x=\frac{78}{3} \\ x=26 \end{gathered}[/tex]

Therefore the first number is 24

The second number is

[tex]\begin{gathered} 2(26)-3 \\ =49 \end{gathered}[/tex]

therefore the numbers are 49 and 26.

Thinking: Two students were having a discussion. They stated:“Since we factored f(x) = 2x2 + 3x + 1 into (2x+1)(x+1) we could say this:If we let h(x) = 2x + 1 and g(x) = x + 1, then we can say f(x) = h(x)g(x)” Howmight you verify their statement?

Answers

Given:

If we let h(x) = 2x + 1 and g(x) = x + 1 and

[tex]f(x)=2x^2+3x+1[/tex]

Required:

How might you verify their statement?

Explanation:

We have h(x) and g(x)

[tex]\begin{gathered} =h(x)g(x) \\ =(2x+1)(x+1) \\ =2x^2+2x+x+1 \\ 2x^2+3x+1=f(x) \\ f(x)=h(x)g(x) \end{gathered}[/tex]

Answer:

Hence, verified the statement.

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