Which relations are functions?
Choose all answers that are correct.
{(-5, 3), (-2, 3), (-1, 8), (0, 0);
{(-6, 0), (-4, 0), (9,0), (15, 0)}
{(-10, 7), (-3, 1), (-3,0), (4, -9)}
(((
{(0, 0), (2, 2), (3, 3), (7, 7)}

Answer:

10

Step-by-step explanation:

11/10.12/11.13/12........99/98.100/99

= 11.12.13....99.100/10.11.12.....98.99

=100/10=10

Answer:

0.21

Step-by-step explanation:

3•7/2^2•5^2 =0.21

Answer:

No

Step-by-step explanation:

Again, I don’t really want to help you :)

We can use the Pythagorean Theorem to solve the triangle to find x.

\(x^2=12^2+8^2\)

\(x^2=144+64\)

\(x^2=208\)

\(x=\sqrt{208}\)

x≈14.4

Tessie will earn $195 in interest each quarter, have a total interest of $3,900 paid over 5 years, and will have $10,400 in her account at the end of the 5-year period.

a) Main answer: The interest paid each quarter is $195.
Explanation: To calculate the interest paid each quarter, first, find the annual interest by multiplying the principal amount ($6,500) by the annual interest rate (12% or 0.12). Then, divide the result by 4 to get the quarterly interest:
$6,500 * 0.12 = $780 (annual interest)
$780 / 4 = $195 (quarterly interest)
b) Main answer: The total interest paid over 5 years is $3,900.
Explanation: To calculate the total interest paid over 5 years, multiply the annual interest ($780) by the number of years (5):
$780 * 5 = $3,900
c) Main answer: Tessie will have $10,400 in her account at the end of 5 years.
Explanation: To find the total amount in the account at the end of 5 years, add the principal amount ($6,500) to the total interest paid over 5 years ($3,900):
$6,500 + $3,900 = $10,400

Summary: Tessie will earn $195 in interest each quarter, have a total interest of $3,900 paid over 5 years, and will have $10,400 in her account at the end of the 5-year period.

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Answer:

1,152 (Yes, I know it seems like a lot but it’s correct)

Step-by-step explanation:

To find this answer, we need to do 32x36

Whenever you have a problem like this, you have to multiply all your different variables/factors in which in this case is 32 and 36

When you do this, you get 1,152 so that’s your answer!

Hope this helps and please award brainliest if possible!

Answer:

1,152

Step-by-step explanation:

It is because 36 pencils and 32 students so you multiply and get 1,152

The value of the expression is 4.

The code :

int a[4] = {1, 2, 3, 4};

int *p = a;

what is *(p + 3)?

The variable a is an array of integers, and the variable p is a pointer to the first element of the array.

The expression *(p + 3) is the value of the element of the array that is 3 elements after the element that p points to.

Since p points to the first element of the array, the expression *(p + 3) is the value of the fourth element of the array, which is 4.

Therefore, the value of the expression is 4.

Here is a breakdown of the code:

int a[4] = {1, 2, 3, 4}: This line declares an array of integers called a and initializes it with the values 1, 2, 3, and 4.

int *p = a; This line declares a pointer to an integer called p and initializes it with the address of the first element of the array a.

what is *(p + 3)?: This line asks what the value of the expression *(p + 3) is.

The expression *(p + 3) is the value of the element of the array that is 3 elements after the element that p points to.

Since p points to the first element of the array, the expression *(p + 3) is the value of the fourth element of the array, which is 4.

Therefore, the value of the expression is 4.

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Correct Question :

Int a[4]={1,2,3,4}, int *p=a. What is the value of *(p+3)?

The correct option is OA. y+4= -3(x-3). L 4.6.3 Test (CST): Linear Equations Solution: We are given that a line passes through (3,-4) and has a slope of -3.

We will use point slope form of line to obtain the equation of liney - y1 = m(x - x1).

Plugging in the values, we get,y - (-4) = -3(x - 3).

Simplifying the above expression, we get y + 4 = -3x + 9y = -3x + 9 - 4y = -3x + 5y = -3x + 5.

This equation is in slope intercept form of line where slope is -3 and y-intercept is 5.The above equation is not matching with any of the options given.

Let's try to put the equation in standard form of line,ax + by = c=> 3x + y = 5

Multiplying all the terms by -1,-3x - y = -5

We observe that option (A) satisfies the above equation of line, therefore correct option is OA. y+4= -3(x-3).

Thus, the correct option is OA. y+4= -3(x-3).

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Answer:

list out some of the difference between Mendeleev periodic table modern periodic table plz give ans

The probability of a flight will not arrive on time is 231/1000

Probability is the function that measures the chances that an outcome of a random event will be as expected. In this way you can measure how likely it is that an event will happen.

Probability requested is equivalent to:

Flights arrive on time= 769

Total flights = 1000

P(arrive on time) = Flights arrive on time / Total flights

P(arrive on time) = 769/1000

P (not arrive on time) = 1 - 769/1000

P (not arrive on time) = (1000 - 769)/1000

P (not arrive on time) = 231/1000

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Answer:

C: after 5 seconds

The equation of the tangent line to the curve y = ln(x^2 - 2x + 1) at the point (2, 0) is y = 2x - 4.

First, let's find the derivative of the function

y = ln(x^2 - 2x + 1).

Using the chain rule, the derivative is given by:

dy/dx = (1 / (x^2 - 2x + 1)) * (2x - 2) = (2x - 2) / (x^2 - 2x + 1)

Now, we can find the slope of the tangent line at x = 2 by substituting the x-coordinate of the given point into the derivative:

m = (2(2) - 2) / ((2)^2 - 2(2) + 1) = 2 / 1 = 2

So, the slope of the tangent line at the point (2, 0) is 2.

Next, we can use the point-slope form of the equation of a line to find the equation of the tangent line.

Given the point (2, 0) and the slope m = 2, the equation of the tangent line is:

y - 0 = 2(x - 2)

Simplifying this equation gives us the equation of the tangent line:

y = 2x - 4

Therefore, the equation of the tangent line to the curve y = ln(x^2 - 2x + 1) at the point (2, 0) is y = 2x - 4.

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The exponential distribution is one of the most widely used probability distributions in statistics. The exponential distribution is frequently employed to model the time between events in a Poisson process, such as the interval between customer arrivals at a store or between machine breakdowns on a production line.

A sample from an exponential distribution can be generated in R by using the rexp function. To compute the mean of the sample, one can use the mean function. However, to simulate the distribution of the mean of 20 random numbers from the exponential distribution, the replicate function is used.

The sample is stored in a vector called "samp."Next, the mean of the sample is computed using the mean function as follows: mean(samp)The mean function takes the average of the values in the "samp" vector. The output of the mean function is a single value that represents the sample mean.

This computation is then repeated ten times using the replicate function.replicate(10, mean(rexp(20,rate = 1)))

The replicate function is used to repeat the operation of generating a random sample of size 20 from the exponential distribution and taking the mean of the sample ten times.

The output of this command is a vector containing the means of the ten random samples. This vector can be used to simulate the distribution of the mean of 20 random numbers from the exponential distribution.

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The forecast for the first week in April is Option B, 217.33.

By using a three-week moving average to forecast the rate of new driver's license applications for the first week of April, means that we will average the rate of new driver's license applications over the last three weeks to forecast the rate for the next week.

Let's calculate the moving average for the first week of April.

Given weeks 2, 3, and 4 of March are 199, 215, and 212, respectively.

To find the three-week moving average, we add these three rates and divide by three:

(199 + 215 + 212) / 3 = 208.67

Therefore, the forecast for the rate of new driver's license applications for the first week of April using the three-week moving average is 208.67, rounded to two decimal places, the closest option to 208.67 is option B, which is 217.33.

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The answer is 1/10

This is simple division

The equation is (1/5÷2)

I did my work on a sheet of paper so i know i did this correctly

My explanation of my work:

Keep change flip is the operation used here

So you keep 1/5 ,change the division sign to multiplication and flip the 2/1 into 1/2 so the new equation is (1/5x1/2) the answer to that is 1/10  

Have an amazing day :)

-yO mAmA

Answer:

1.504 x 10^4

Step-by-step explanation:

The 139 purchases fall within the interval that contains 95% of the data, which indicates that this value is not unusual and is likely to occur frequently.

To determine whether the 139 purchases fall within an interval which contains 95% of the number of monthly purchases, we can use the sigma rules, also known as the empirical rule, which state that:

Approximately 68% of the data falls within one standard deviation of the mean.

Approximately 95% of the data falls within two standard deviations of the mean.

Approximately 99.7% of the data falls within three standard deviations of the mean.

Since the mean is 121 and the standard deviation is 6.8, we can calculate the upper and lower bounds of the interval that contains 95% of the data as follows:

Lower bound = mean - 2 * standard deviation = 121 - 2 * 6.8 = 107.4

Upper bound = mean + 2 * standard deviation = 121 + 2 * 6.8 = 134.6

Since 139 falls within this interval, we can conclude that it does fall within an interval which contains 95% of the number of monthly purchases.

Therefore, we can use the sigma rules to estimate the percentage of data falling within a certain interval based on the mean and standard deviation of the data.

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Answer:

B Is the answer

Step-by-step explanation:

I think

Answer: 2 weeks

Step-by-step explanation:

Given: Amount in the saving account = $340

Hourly wage = $12.50

Maximum number of hours Jill can work =  40

Amount she can make by working 40 hours in a week = $ (40 x 12.50 )= $ 500

Let x be the number of weeks.

The according to the question , we have

\(500x+340\geq850\\\\\Rightarrow\ 500x \geq850-340\\\\\Rightarrow\ 500x \geq510\\\\\Rightarrow\ x \geq\dfrac{510}{500}\\\\\Rightarrow\ x \geq1.02\)

i.e. x=2

So, it will take 2 weeks to have $850.

The measure of angle z is given as follows:

m < Z = 55º.

The sum of the interior angle measures of a polygon with n sides is given by the equation presented as follows:

S(n) = 180 x (n - 2).

A triangle has three sides, hence the sum is given as follows:

S(3) = 180 x (3 - 2)

S(3) = 180º.

The angle measures for the triangle in this problem are given as follows:

Then the measure of angle z is given as follows:

90 + 35 + z = 180

z = 180 - 125

m < z = 55º.

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Answer:

D

Step-by-step explanation:

Step 1: (3)^2*6pi

Step2: 54 pi cm^3 Ans

Answer:

169.71

Step-by-step explanation:

FIRST PUT THE VALUES IN THE FORMULA OF VOLUME OF CYLINDER i.e.  V= πr^2 h  then evaluate the values as V=22/7(3)^2(6)  =169.71cm^3

Answer:  x = 14

Step-by-step explanation:

-x+14 = 0  

Subtract  14  from both sides of the equation :  

                     -x = -14

Multiply both sides of the equation by (-1) :  x = 14

Given :

2 : 7 : : x : 49

➟ 2 : 7 = x : 49

➟ 2/7 = x/49

➟ 7x = 2 × 49

➟ x = 2 × 49/7

➟ x = 2 × 7

➟ x = 14

Given: Distance between Emily and Emerson = 1/2 mileSpeed of Emily = 12 miles per hourSpeed of Emerson = 8 miles per hourTo find:For how many minutes can Emily see Emerson?

As per the question,After she passes him, she can see him in her rear mirror until he is 1/2 mile behind her.Since the distance between Emily and Emerson is 1/2 mile.Distance travelled by Emerson to reach behind Emily = 1/2 mileDistance travelled by Emily in the same time = Distance travelled by EmersonTo find the time taken by Emerson, we will use the formula:Time = Distance / SpeedDistance = 1/2 mileSpeed = 8 miles per hourTime taken by Emerson = Distance / Speed= (1/2) / 8= 1/16 hours

Now, let's calculate the distance traveled by Emily in the same time.Distance = Speed × Time= 12 × (1/16)= 3/4 mileThus, Emily can see Emerson for the time taken by Emerson to cover the distance of 3/4 mile. Time taken by Emerson to cover the distance of 3/4 mile= Distance / Speed= (3/4) / 8= 3/32 hours= (3/32) × 60 minutes= 5.62 minutesSo, Emily can see Emerson for 5.62 minutes. Therefore, the main answer is 5.62 minutes.

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If Neil uses 41-cent stamps and 6-cent stamps to mail a gift card to a friend , then the number of 41 cent stamp used is 3  and number of 6 cent stamps used is 12 .

Let number of 41 cents stamps used be = x ;

and let number of 6 cents stamps used be = y ;

converting amount 41-cents in dollars is = $0.41  ;

and converting amount 6-cents in dollars is = $0.06  ;

the amount for which Neil used 41-cent stamps , 6-cent stamps is = $1.95 ;

this situation in equation form is written as ⇒ 0.41x + 0.06y = 1.95

Multiplying on both sides by 100 , we get

⇒ 41x + 6y = 195  ;

⇒ y = (195 - 41x)/6 ;

We will test this equations for values of x and y , the number of stamps must be whole numbers .

If x = 1 , then value of y is = 25.66

If x = 2 , then value of y is = 18.833

If x = 3 , then value of y is = 12

If x = 4 , then value of y is = 5.166 .

the only value of x and y which shows a whole number as an output is : If x = 3 , then y = 12 .

Therefore , Neil used "3" 41-cents stamps and "12" 6-cent stamps .

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Answer:

To calculate the estimated arrival time in Newcastle, we need to divide the distance by the average speed of the car.

Given that the distance from Leeds to Newcastle is 160 kilometers and the car averages 50 km/h, we can use the formula:

Time = Distance / Speed

Time = 160 km / 50 km/h

Time = 3.2 hours

Now, we need to add this time to the departure time of 1:00 PM:

1:00 PM + 3.2 hours = 4:12 PM

Therefore, the car will arrive in Newcastle at approximately 4:12 PM.

If a car traveling at an average speed of 50 kmph covers a distance of 160 kilometres, it would take approximately 3.2 hours. So, leaving at 1:00 pm, it would arrive by about 4:12 pm.

The question involves calculating the time taken for a journey using the average speed formula. The average speed is calculated by dividing the total distance by the total time. In this case, the total distance is 160 kilometres and the average speed is 50 kmph.

If a car averages 50 kmph for a journey of 160 kilometers, it would take 160 / 50 = 3.2 hours. So, if the car leaves Leeds at 1:00 pm, it would arrive in Newcastle at approximately 1:00 pm + 3.2 hours = 4:12 pm.

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Answer:

x-intercept = 4

y-intercept = -1

As ordered pairs they would be ( 4, 0) and ( 0, -1)

Step-by-step explanation:

The line goes through 4 on the x line and goes through -1 on the y line.

As an ordered pair you just put the numbers in their x and y spots being ( x, y )

With 4 being on the X and -1 being on the Y it would make them ( 4, 0) and

( 0, -1).

the solution to the first system of equations is x = 2 and y = 1.

Simultaneous equations, a system of equations Two or more equations in algebra must be solved jointly (i.e., the solution must satisfy all the equations in the system). The number of equations must match the number of unknowns for a system to have a singular solution.

There are four methods for solving systems of equations: graphing, substitution, elimination, and matrices.

Given, a system of equations,

y=6x-11,

- 2x - 3y = - 7

To solve this system of equations, we can substitute the expression for y in the second equation with the expression given in the first equation.

y = 6x - 11

-2x - 3(6x - 11) = -7 (substituting y with 6x - 11)

-2x - 18x + 33 = -7

-20x = -40

x = 2

Now we can use this value of x to find y by substituting it in one of the equations. Let's use the first equation.

y = 6x - 11

y = 6(2) - 11

y = 1

Therefore, the solution to the system of equations is x = 2 and y = 1.

You can solve every equation by using this method just change the variables.

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Answer:

14/15

Step-by-step explanation:

these are hard to read so i'm gonna make it short and simple. you start by changing the 3/5 to 9/15 so it can be added (all you do is multiply top and bottom by 3) then add and get 5/15+9/15 which is equal to 14/15

Answer:

14/15

Step-by-step explanation:

5/15 + 3/5 = 5/15 + (3 x 3)/(5 x 3)

5/15 + (3 x 3)/15

5/15 + 9/15

(5 + 9)/15

14/15

Decimal Form: 0.933

Hope you have a great day!

Answer: 29x +23

Step-by-step explanation: (2x + 4)(3x + 6) = 6\(x^{2}\) + 24x + 24.

(3x - 1)(2x - 1) = 6\(x^{2}\) - 5x + 1. 6\(x^{2}\) + 24x + 24 - (6\(x^{2}\) - 5x + 1) = 29x +23.

Answer:

Volume left = 16π cm³ or 50.265 cm³

Step-by-step explanation:

Let's first find the surface area of the tennis ball.

S.A = (4/3)πr³

Radius of a ball = 2 cm

Thus;

S.A = (4/3)π(2)³

S.A = 32π/3

Since there are 3 radius balls that will make the cylinder full, then;

Surface area of 3 balls = 3 × 32π/3 = 32π

Now, formula for volume of cylinder is;

V = πr²h

r = 2 cm

h = 4 × 3 = 12 (since diameter of tennis ball is 4 cm)

Thus;

V = π × 2² × 12

V = 48π

Thus;

Volume left = Volume of cylinder - surface area of 3 balls = 48π - 32π = 16π cm³ or 50.265 cm³