Write the equation of a line in standard form that has a slope of 4 and has the same x-intercept as the line 3x+y=18
PLSSS HELP URGENT SOS

44s

To simplify the expression, we will expand the parenthesis:

Answer:

b) The value is a statistic because it is a numerical measurement describing some characteristic of a sample

Answer:

4/7

Step-by-step explanation:

5+2=7

7 children

4 boys Out of 7 children

Answer:1/7

Step-by-step explanation:

Khan academy

Answer:

.67

Step-by-step explanation:

When it comes to rounding anything 4 or below you round down. anything 5-9 you round up. For example: 4.56 would round up to 4.6 because 6 is more than 4. and 6.21 would round down to 6.2....

Answer:

X+y=56 equation 1

X-y=16 equation 2

X+y+x-y=56+16

2x=72(divide Both side by 2)

X=36

X+y=56(from equation 1 to find y)

36+y=56

Y=56-36

Y=20

So their product is xy

36×20

720

So the answer is 720

Answer:

( 7 , 4 )

given:

make y the subject in equation 2:

4x - y = 24

-y = 24 - 4x

y = 4x - 24

insert this in equation 1:

4x + 10y = 68

4x + 10(4x - 24) = 68

4x + 40x - 240 = 68

44x = 68 + 240

44x = 308

x = 7

solve for y:

y = 4x - 24

y = 4(7) - 24

y = 4

Check the picture below.

now, doing a prime factoring on both the denominators, notice, the repeated factors get used only once in the LCD calculation, so the red "3" only goes once in the LCD and then the others, so the LCD for both of those is 3*3*2*2 = 36.

"L" in LCD stands for Least, so that's the smallest, however we can have a CD that's no small and is simply a multiple of the LCD, let's check who isn't an LCD or CD

\(\begin{array}{rllll} 108=3\cdot 36 & \bigotimes\\\\ 72=2\cdot 36& \bigotimes\\\\ 36=1\cdot 36&\bigotimes\\\\ 24&\textit{\LARGE \checkmark} \end{array}\)

From the given table, we have that:

1. The relation of the situation is: (20,2), (22.5, 5), (25,4), (27.5, 4), (29,4), (29,5), (30,1), (30,2), (30,3), (30,4), (30,5), (32.5, 1), (32.5, 3), (35,4), (40,2), (42.5, 3).

2. The domain is {20, 22.5, 25, 27.5, 29, 30, 32.5, 35, 40, 42.5} and the range is {1, 2, 3, 4, 5}.

3. There are inputs such as 25, 29, 30 and 32.5 that are mapped to multiple outputs, hence the relation does not represent a function.

To build the relation, we look at the graph, and write all pairs of (Age, Finishing Place), as follows:

(20,2), (22.5, 5), (25,4), (27.5, 4), (29,4), (29,5), (30,1), (30,2), (30,3), (30,4), (30,5), (32.5, 1), (32.5, 3), (35,4), (40,2), (42.5, 3).

Hence, for the given relation:

The domain is {20, 22.5, 25, 27.5, 29, 30, 32.5, 35, 40, 42.5} and the range is {1, 2, 3, 4, 5}.

A relation represents a function if each value of the input is mapped to only one value of the output.

For this problem, we have that:

There are inputs such as 25, 29, 30 and 32.5 that are mapped to multiple outputs, hence the relation does not represent a function.

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Answer:

b. 4

c. 90⁰

Step-by-step explanation:

a. is in the diagram

Answer:

  an = 28 +10(n -1)

Step-by-step explanation:

The general form of the explicit formula for an arithmetic sequence is ...

  an = a1 +d(n -1)

Using the given values, we find your explicit formula to be ...

  an = 28 +10(n -1)

Answer:

ask siri

Step-by-step explanation:

go to your phone

go to siri

and then ask her

Answer: x ≤ 7

Step-by-step explanation:

Answer:

x\(\leq\)7

Step-by-step explanation:

4x-6\(\geq\)6x-20

First get x on one side.

So substract 6x on each side to get:

4x-6x-6\(\geq\)-20

Then add 6 on each side to get:

4x-6x\(\geq\)-14

Simplify.

-2x\(\geq\)-14

Divide each side by -2 to get x alone.

*Remember that when dividing by a negative sign is fliped.

x\(\leq\)-14/-2

Simplify.

x\(\leq\)7

Step-by-step explanation:

*Syntax Error*

just consult with your teacher

The solution to the system of linear equations is (x, y, z) = (64/11, 37/11, 9/11). The system has exactly one solution.

Let's solve the system of linear equations correctly.

The given system of linear equations is:

x = y + 3z = 6

x - 2y = 5

2x - 2y + 5z = 9

To determine the number of solutions, we can analyze the system using the method of elimination or substitution. Let's use the method of elimination:

From equation 1, we have:

x = y + 3z

Substituting this value of x in equation 2:

(y + 3z) - 2y = 5

y + 3z - 2y = 5

-z + 3z = 5 - y

2z = 5 - y

Now, let's substitute the value of x in equation 3:

2(y + 3z) - 2y + 5z = 9

2y + 6z - 2y + 5z = 9

11z = 9

Simplifying the equation, we find:

z = 9/11

Now, substituting this value of z back into the equation 2z = 5 - y, we get:

2(9/11) = 5 - y

18/11 = 5 - y

18/11 - 5 = -y

18/11 - 55/11 = -y

-37/11 = -y

y = 37/11

Finally, we can substitute the values of y and z into equation 1 to find the value of x:

x = y + 3z

x = 37/11 + 3(9/11)

x = 37/11 + 27/11

x = 64/11

Therefore, the solution to the system of linear equations is (x, y, z) = (64/11, 37/11, 9/11).

The system has exactly one solution.

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When we need to multiply two fractions, multiply the two numerators, then multiply the denominators and finally, simplify the new fraction, like this:

Answer: $1239.00

Step-by-step explanation:

I had to recheck on this.

For females that are ages 25-29, they have base auto insurance rate, meaning that the rate is set at 1. So multiply the base premium and base rate, 1239x1, and obviously it's the same 1239.

Hope this helped.

Answer:

Multiply

Step-by-step explanation:

I'm assuming you are turning months into years to do so you would multiply the time in months by 12 to get the time in years

The width of the basketball court is 10 meters

The area of the basketball court = \(30\sqrt{20}\) meter square

The length of the basketball court = \(6\sqrt{5}\) meters

The shape of the basketball court is rectangle, we have to find the width of the basketball shape

The area of the basketball court = The length of the basketball court × The width of the basketball court

Then width of the basketball court = The area of the basketball court / The length of the basketball court

Substitute the values in the equation

Then width of the basketball court =  \(30\sqrt{20}\) ÷ \(6\sqrt{5}\)

Divide the terms

= 10 meters

Hence, the width of the basketball court is 10 meters

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Answer:

-6x-14<-4

-6x<4+14

-6x<18

divide both side by -6

x<-3

Step-by-step explanation:

answer A

Step-by-step explanation:

step 1 find thd equation of line PI

step 2 find the equation of line AD

step 3 solve the two equations of the 2 lines

step 4 the valued of x and y obtained from step 3are yhe coordinates of the intetcept

Answer:

19

Step-by-step explanation:

3(x + 6) = 5(x - 4)

Distribute on both sides.

3x + 18 = 5x - 20

Subtract 3x from both sides. Add 20 to both sides.

38 = 2x

Divide both sides by 2.

19 = x

Maria followed the steps shown above and solved the equation correctly.

The solution is x = 19.

Answer: x = 19

Answer:

A. 19

Have a great day :D

I Got u Bro Answer: x2-7x+14=0

Answer:

Step-by-step explanation:

X^2-7x+14=0

1) The value of given random variable having mean 20 and variance 25 is (a) 0.1587, (b) 0.0228 and (c) 0.5328.

2) The z-score corresponding to a probability of a) 0.95 is 1.645, b) 0.05 is -1.645 and c) 0.1515 is -1.04.

The mean is a measure of central tendency, which represents the average value of a set of numbers. It is calculated by adding up all the values in the set and then dividing by the total number of values.

1) (a) We can standardize the random variable X using the formula z = (X - μ) / σ, where μ is the mean and σ is the standard deviation. Therefore,

z = (15 - 20) / 5 = -1

Using a standard normal distribution table or calculator, we can find P(Z < -1) = 0.1587.

(b) Similarly, we have

z = (30 - 20) / 5 = 2

Using the standard normal distribution table or calculator, we can find P(Z > 2) = 0.0228.

(c) To find P(18 ≤ X ≤ 25), we can again standardize the random variable:

z1 = (18 - 20) / 5 = -0.4

z2 = (25 - 20) / 5 = 1

Then we can use the standard normal distribution table or calculator to find P(-0.4 ≤ Z ≤ 1) = 0.5328.

2) (a) Since we are given that X is a standard normal random variable, we can use the standard normal distribution table or calculator to find the value of a such that P(X < a) = 0.95. From the table, we find that the z-score corresponding to a probability of 0.95 is 1.645. Therefore,

a = μ + σ * z = 0 + 1 * 1.645 = 1.645

(b) Similarly, we can find the value of b such that P(X ≤ b) = 0.05 using the standard normal distribution table or calculator. From the table, we find that the z-score corresponding to a probability of 0.05 is -1.645. Therefore,

b = μ + σ * z = 0 + 1 * (-1.645) = -1.645

(c) We want to find the value of c such that P(X > c) = 0.8485. Since the normal distribution is symmetric about the mean, we know that P(X > c) = 1 - P(X < c), so we can find the value of c such that P(X < c) = 1 - 0.8485 = 0.1515. From the standard normal distribution table, we find that the z-score corresponding to a probability of 0.1515 is -1.04. Therefore,

c = μ + σ * z = 0 + 1 * (-1.04) = -1.04.

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Solution:

Given the following data:

The mean is expressed as

Thus, we have

Hence, the mean is evaluated to be

Answer:

C)

Step-by-step explanation:

Nicole and Jared are both accurate. To generate an equation with just one variable, you can solve for either variable and then use the equivalent expression.

In the given question, when solving a system of equations, Jared found y = x + 10 for one equation and substituted x + 10 for y in the other equation.

Nicole found x = y - 10 for the same equation and substituted y - 10 for x in the other equation.

We have to check who is correct.

Nicole and Jared are both accurate. To generate an equation with just one variable, you can solve for either variable and then use the equivalent expression. You can then resolve. In contrast to Nicole, who would have produced a one-variable equation that can be used to solve for y, Jared would have produced an equation with just one variable that can be used to get the value of x.

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The right question is:

When solving a system of equations, Jared found y = x + 10 for one equation and substituted x + 10 for y in the other equation. Nicole found x = y - 10 for the same equation and substituted y - 10 for x in the other equation. Who is correct? Explain.

Answer:

The margin of error for a 95% confidence interval for the population mean is of 1.05 years.

Step-by-step explanation:

We have that to find our \(\alpha\) level, that is the subtraction of 1 by the confidence interval divided by 2. So:

\(\alpha = \frac{1-0.95}{2} = 0.025\)

Now, we have to find z in the Ztable as such z has a pvalue of \(1-\alpha\).

So it is z with a pvalue of \(1-0.025 = 0.975\), so \(z = 1.96\)

Now, find the margin of error M as such

\(M = z*\frac{\sigma}{\sqrt{n}}\)

In which \(\sigma\) is the standard deviation of the population(square root of the variance) and n is the size of the sample.

What is the margin of error for a 95% confidence interval for the population mean

36 students, so \(n = 36\)

Variance of 10.24, so \(\sigma = \sqrt{10.24} = 3.2\)

\(M = 1.96*\frac{3.2}{\sqrt{36}} = 1.05\)

The margin of error for a 95% confidence interval for the population mean is of 1.05 years.