Solve the simultaneous equations by substitution 3 x + 4 y = 8 x + y = 4

Answers

Answer 1

Answer:

x=

29

12

≈0.413793103

y=

29

20

≈0.689655172


Related Questions

Graph g(x)=5|x -6|+2g(x)=5∣x−6∣+2g, left parenthesis, x, right parenthesis, equals, 5, vertical bar, x, minus, 6, vertical bar, plus, 2.

Answers

The graph of the absolute value function can be seen at the end of the answer. There we see a translated and dilated parent function.

How to graph the absolute value function?

Here we want to graph:

g(x) = 5*|x - 6| + 2

First, remember that the minimum of the absolute value part |f(x)| is 0, so the minimum of the above function is 2, and that happens when x = 6. That will be the vertex of our function.

From that point, we will have two lines, one that goes to the right with a slope of 5, and the other that goes to the left with slope of -5 (the coefficient that multiplies the absolute value part of the function).

The graph of the function can be seen below.

If you want to learn more about absolute value functions, you can read:

https://brainly.com/question/3381225

Answer:6,2 & 7,7

Step-by-step explanation:

Could Y'all Please Help Me! I'll Give you Good Points!

Answers

Answer:

I would say its D

Step-by-step explanation:

10:9:10 is the original ratio

It gets turned into 1:1:2, making it very distorted

Solve the equation on the
interval [0, 27).
4(sin x)2 - 2 = 0
X
.
7
[?] []? []T
x =
4) 4 4 4
Write your answer in increasing order. Enter the
number that belongs in the green box.
Enter

Answers

Answer:

see explanation

Step-by-step explanation:

note that (sinx)² = sin²x

4sin²x - 2 = 0 ( add 2 to both sides )

4sin²x = 2 ( divide both sides by 4 )

sin²x = [tex]\frac{2}{4}[/tex] = [tex]\frac{1}{2}[/tex] ( take square root of both sides )

sinx = ± [tex]\sqrt{\frac{1}{2} }[/tex] = ± [tex]\frac{1}{\sqrt{2} }[/tex]

sinx = [tex]\frac{1}{\sqrt{2} }[/tex] ( sinx > 0 , then x is in 1st/2nd quadrants )

x = [tex]\frac{\pi }{4}[/tex] , π - [tex]\frac{\pi }{4}[/tex] = [tex]\frac{3\pi }{4}[/tex]

sinx = - [tex]\frac{1}{\sqrt{2} }[/tex] ( sinx < 0 , then x is in 3rd/4th quadrants )

x = π + [tex]\frac{\pi }{4}[/tex] = [tex]\frac{5\pi }{4}[/tex] , 2π - [tex]\frac{\pi }{4}[/tex] = [tex]\frac{7\pi }{4}[/tex]

solutions are

[tex]\frac{\pi }{4}[/tex] , [tex]\frac{3\pi }{4}[/tex] , [tex]\frac{5\pi }{4}[/tex] , [tex]\frac{7\pi }{4}[/tex] in the interval [ 0, 2π )

The formula for an area of a triangle is :____.

Answers

Answer:

Area of a triangle

Step-by-step explanation:

A= [tex]\frac{1}{2}[/tex]bh

A: area

b: base

h: height

hope this helps..

Calculate the monthly payment for a 5-year car loan of $23,570 at 10.43% interest, compounded monthly. a. $247.44 b. $337.56 c. $433.88 d. $505.79

Answers

The monthly payment for a 5-year car loan of $23,570 at 10.43% interest, compounded monthly will be $660

It is given that the monthly payment for a 5-year car loan of $23,570 at 10.43% interest, is compounded monthly.

It is required to find the monthly payment.

What is compound interest?

It is defined as the interest on the principal value or deposit and the interest which is gained on the principal value in the previous year.

We can calculate the compound interest using the below formula:

[tex]\rm A=P(1+ \frac{r}{n})^n^t[/tex]

Where A = Final amount

           P = Principal amount

           r  = annual rate of interest

           n = how many times interest is compounded per year

           t = How long the money is deposited or borrowed (in years)

We have P = $23,570

               r  =  10.43% = 10.43/100 = 0.1043

               n = 12

               t = 5 years

Putting all the values in the formula, we get:

[tex]\rm A=23,570(1+\frac{0.1043}{12})^1^2^\times^5[/tex]

[tex]\rm A = 23,570\times1.680\\\rm A = 39597.6[/tex]

The monthly payment will be:

=[tex]\rm \frac{A}{t(in \ months)}[/tex]

[tex]\rm = \frac{39597.6}{60} \\\rm = 659.96\\\rm \approx 660[/tex]

Thus,  the monthly payment for a 5-year car loan of $23,570 at 10.43% interest, compounded monthly will be $660.

Learn more about the compound interest:

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Answer:

D. 505.79

Step-by-step explanation:

edge 2022

f (x)=6xº + 2x² +
+ x
O The function is an even function.
O The function is an odd function.
O The function is neither even nor odd.

Answers

Foreign Policy: Imperialism  For82622

A bag contains 20 balls.
The ratio of red to blue to yellow balls is 1:2:2.
Find how many red, blue and yellow balls there are.

Answers

Answer: red=4 blue=8 yellow=8

4:8:8

Step-by-step explanation: 1+2+2=5

20÷5=4 4×1=4 2×4=8 2×4=8

Find the ending balance
if $2,000 was deposited
at 4% annual interest
compounded
semi-annually for 6 years.

Answers

The ending balance would be $2,536.48

Answer:

the person above has the answer:>

An engineer is tasked with doubling the length and width of a city park. The engineer draws the park on a coordinate plane and labels it ABCD. Find the area of the park before and after the expansion. A coordinate plane with Square A B C D plotted. Point A is at zero comma three. Point B is at thee comma three. Point C is at three comma zero, Point D is at zero comma zero. A photo of a park with a caption that says, dimensions of park are being doubled. What is the area of the park before the expansion?

Answers

The vertex coordinates of the park the engineer draws, A(0, 3), B(3, 3),

C(3, 0), D(0, 0) give the area of the park before expansion as 9 unit².

How can the area of the park be found?

The shape of the park = A square

The vertices of the park = ABCD

The coordinates of the point are; A(0, 3), B(3, 3), C(3, 0), D(0, 0)

The length of side AB = 3 - 0 = 3

Length of side BC = 3 - 0 = 3

Length of side CD = 3 - 0 = 3

Length of side AD = 3 - 0 = 3

Therefore, the park is a square with side length, s = 3 units

The area of a square, A = Side × Side =

The area of the park before expansion, A = 3 unit × 3 unit = 9 unit²

Learn more about finding the area of geometric shapes here:

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please help, will give brainlist to first answer

Answers

3.62000 liters
4.4300 grams

Answer:

3 .62 lt

4 4300 g

5 1.78 mt

6 .0031 g

7 500 lt

8 .083 g

Please show work on answer

Answers

Answer:

x = 14

Step-by-step explanation:

x + 96 + 5x = 180

6x + 96 = 180

6x = 84

x = 14

Answer:

[tex]\huge\boxed{\sf x = 14}[/tex]

Step-by-step explanation:

x + 96 + 5x = 180 (Angles on a straight line)

Combine like terms

x + 5x + 96 = 180

6x + 96 = 180

Subtract 96 to both sides

6x = 180 - 96

6x = 84

Divide both sides by 6

x = 84 / 6

x = 14

[tex]\rule[225]{225}{2}[/tex]

A triangle prism is 21 yards long and has a triangular face with a base of 12 yards and a height of 8 yards the other two sides of a triangle are each 10 yards what is the surface area of the triangular prism

Answers

first find perimeter and area of base

then, find tsa of triangular prism

as done in the solution above!

Write in point-slope form the equation of the line that passes through the point (- 1, 6) and has a slope of -2

Answers

Answer:

y= -2x+4

Step-by-step explanation:

4. Courtney wants to sell her grandfather's antique 1932 Ford. She begins to set her price by looking at ads and finds these prices: $24,600, $19,000, $33,000, $15,000, and 20,000. What is the mean price?

Answers

Answer:

$22,320

Step-by-step explanation:

1. Understanding

Mean is the average of a given set

2. Solving

We have to find the average of all of these numbers.

How do I find the average?

I add all of the numbers and divide by the number of numbers I added. Example:

(x + x + x + x)/4 or,

(x+x)/2 and examples in numbers:

(3+4)/2 or,

(9+4+8+5+7)/5

See what I mean? Dividing by the number of numbers I have.

Ok, now we know that, we can solve!

Here is the equation for this problem:

(24,600+19,000+33,000+15,000+20,000)/5 (We have 5 numbers)

We have to do Parentheses First

(24,600+19,000+33,000+15,000+20,000)/5 --> 111,600/5

111,600/5 = 22,320

22,320 is the average number of all of the numbers, which is the mean

Hope this helps :)

-jp524

What is the solution of log (2 t 4) = log (14 minus 3 t)?.

Answers

The solution the equation [tex]\rm log(2t+4)=log(14-3t)[/tex] is t = 2.

What is logarithmic properties?

Considering that the logarithm function is injective then the log is removing from the both sides and solving the equation for the value of t.

Given

The equation is;

[tex]\rm log(2t+4)=log(14-3t)[/tex]

The solution of the equation is;

[tex]\rm log(2t+4)=log(14-3t)\\\\2t+4=14-3t\\\\2t+3t=14-4\\\\5t=10\\\\t=\dfrac{10}{5}\\\\t=2[/tex]

Hence, the solution the equation [tex]\rm log(2t+4)=log(14-3t)[/tex] [tex]\rm log(2t+4)=log(14-3t)[/tex] is t = 2.

To know more about logarithmic properties click the link given below.

https://brainly.com/question/2824272

Factorise 4x² + 2y² + x²y² + 8​

Answers

Answer:

[tex]4x² + 2y² + x²y² + 8 \\arranging \: them \\ 4 {x}^{2} + {x}^{2} {y}^{2} + 2 {y}^{2} + 8 \\ {x}^{2} (4 + {y}^{2} ) + 2(y^{2} + 4) \\ ({x}^{2} + 2)(y^{2} + 4)[/tex]

Answer:

(4 + y^2) ( x^2 + 2)

Step-by-step explanation:

irst rearrange the terms

4x^2 + x^2 y^2 + 2y^2 + 8

then factorise

x2 ( 4 + y^2) + 2 ( y^2 + 4)

group like terms together and insert the remaining terms into a bracket

(4 + y^2) ( x^2 + 2)

I can't find the answer could you please help me?

Answers

Answer: 10.5

Step-by-step explanation:

There is a bag filled with 5 blue, 2 red and 3 green marbles.
A marble is taken at random from the bag, the colour is noted and then it is not replaced.
Another marble is taken at random.
What is the probability of getting 2 different colours?

Answers

Answer:

7/25

Step-by-step explanation:

working out above.

To find the probability = Times BB RR and GG

then at the end add them all together.

Instructions: Find the length of the missing side.

Please help explain how I do this!! I will give you a Brainliest!!!!

Answers

Answer:

side AB = [tex]9\sqrt{2}[/tex]

hypotenuse CB = 18

Step-by-step explanation:

with a 45-45-90 triangle, we know that the two legs (AC and AB in this picture) are the same length, so if AC is [tex]9\sqrt{2}[/tex] , then AB would have to be the same so therefore it would also be [tex]9\sqrt{2}[/tex]. We also know that the length of the hypotenuse (CB) is the length of the leg times [tex]\sqrt{2}[/tex]. So, it would be [tex](9\sqrt{2} ) *\sqrt{2}[/tex], which is the same as saying [tex]9*(\sqrt{2}) * (\sqrt{2} )[/tex]. Doing [tex](\sqrt{2}) * (\sqrt{2} )[/tex] would cancel out the square roots, leaving you with just 2, so you get 9*2, which is 18.

You pick a card at random. Without putting the first card back, you pick a second card at random. 5 6 7 What is the probability of picking an even number and then picking an even number?

Answers

Answer:

The probability of picking a 7 as the first card is 4 out of 52 or 1/13. The probability of picking a 5 as the second card is 4 out of 51. For both to happen, we multiply and get about .00603318

Thanks!

person above me is correct

Step-by-step explanation:

write the equation that models each linear relationship

Answers

Note: I will be writing these in slope-intercept form.

[6] y = 2x + 4

Since the line is going from bottom left to top right, we know the slope of the line is positive.

-> The b, or y-intercept, is 4 because the line hits the y-axis at 4.

-> The slope can be found with change in y over change in x,

[tex]\frac{14-4}{5-0} =\frac{10}{5} =2[/tex]

-> The final equation is y = 2x + 4

[7] y = -3x - 5

Because the line is going from top left to bottom right, we know the slope of the line will be negative.

-> The b, or y-intercept, is -5 because the line hits the y-axis at -5.

-> The slope can be found with change in y over change in x,

[tex]\frac{4--5}{-3-0}=\frac{4+5}{-3-0}=\frac{9}{-3}=-3[/tex]

-> The final equation is y = -3x - 5

"You've fallen into my trap!" Justin shouts, laughing like
the madman he is. The mouse he captured stares back at
him indifferently as it munches on a piece of cheese at the
bottom of a box whose base measures 12 cm by 12 cm.
Move the points on the grid below to draw the base of
the box in which the mouse is trapped.

Answers

Answer:

18 units by 18 units

makes sure the square add up to 18 going across and 18 going down.

Step-by-step explanation:

when does the equation of a line in slope-intercept form look just like its equation in point slope form ???


with explanation

Answers

Answer: y = mx + b

Step-by-step explanation:

i think this is what ur asking but “y” is the coordinate of the y-axis with “x” being the coordinate of the x-axis. m is the slope of the graph

BRE
What is the scale factor of this dilation?
A'
9
6
B'
15
10
[Not drawn to scale]
O
WN
O
O 3
OO
5

Answers

Answer:

2nd option

Step-by-step explanation:

the scale factor is the ratio of corresponding sides, image to original, so

scale factor = [tex]\frac{A'C'}{AC}[/tex] = [tex]\frac{9}{6}[/tex] = [tex]\frac{3}{2}[/tex] = 1 [tex]\frac{1}{2}[/tex]

find the length of the diameter of circle 0

Answers

Answer:

Diameter = 19.33

Step-by-step explanation:

Imaging a radius line from O to the endpoints of the 7. call this line R.

Label the part of the vertical line from O to the 90 degree intersection y.

Now you have a right triangle.

Using the Pythagorean theorem:

R² = 7² + y²

also

y = R - 3

substitute for y:

R² = 49 + (R-3)²

R² = 49 + R² - 6R + 9

simplify:

0 = 58 - 6R

6R = 58

R = 9.6667

Diameter = 2(9.6667) = 19.33

JAVA
Write a program that repeatedly reads in integers until a negative integer is read. The program also keeps track of the largest integer that has been read so far and outputs the largest integer at the end.

Ex: If the input is:
2 77 17 4 -1

the output is:
77
Assume a user will enter at least one non-negative integer.

Answers

The program is an illustration of loops

What are loops?

Loops are program statements that are used to execute repeated statements

The java program

The program, written in Java where comments are used to explain each line is as follows:

import java.util.*;

public class Main{

public static void main(String[] args) {

 Scanner input = new Scanner(System.in);

 int num;

//Get input from the user

 num = input.nextInt();

//Initialize the largest to the first input

 int maxn = num;

//This loop is repeated until a negative input is recorded

 while (num >=0){

//If the current input is greater than the previous largest

     if (num>maxn){

//Set largest to the current input

         maxn = num;      }

//Get another input from the user

     num = input.nextInt();

 }

//Print the largest

 System.out.print("Largest: "+maxn);

}

}

Read more about loops at:

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Suppose you know the volume of a pyramid with a rectangular base is 200 cubic units. How could you find a set of dimensions for the pyramid?

Answers

I tried figuring it out but sorry I can’t help you

A theater has 15 seats in the front row. The number of seats in each row follows an arithmetic series with 72 seats in the last row. The theater has a total of 870 seats. How many rows does the theater have? By how many seats does each row increase? Please show all work.

Answers

Step-by-step explanation:

Given:

Theater has 15 seats

Last Row has 72 seats.

Theater has a total of 870 seats.

Unknown: Number of rows

Number of seats in each row.

Equations: Since we know the total number of seats the Theater has we can use the sum of arithmetic series

[tex]s = \frac{a _{1} + a _{n} }{2} n[/tex]

Where a1 is the first row of seats

s is total number of seats

an is last row of seats

n is number of rows.

[tex]870 = \frac{15 + 72}{2} (n)[/tex]

[tex]870 = \frac{87}{2} n[/tex]

[tex]2(870) = 87n[/tex]

[tex]20 = n[/tex]

So we have 20 rows.

To find how many seats does each row increase, we use this formula,

[tex]a _{n} = a + (n - 1)d[/tex]

Let use the 20th row as an example,

[tex]a _{20} = 15 + (19)d[/tex]

[tex]72 = 15 + (19)d[/tex]

[tex]57 = 19d[/tex]

[tex]3 = d[/tex]

So the common difference is 3.

So the seats of each row increase by 3.

Write an equation of the line in slope- intercept form.
A. Y= -4/5x - 3
B. Y = -4/5x + 3
C. Y= -5/4x - 3
D. Y= -5/4x + 3

Answers

Answer:

A

Step-by-step explanation:

becuase the 3 is negtive and the 4/5 so it A

Answer:

[tex]a)\ y=-\frac{4}{5}x -3[/tex]

Step-by-step explanation:

Slope (m) form: [tex]\frac{y_2-y_1}{x_2-x_1}[/tex]

[tex]m=\frac{y_2-y_1}{x_2-x_1} \\\\m=\frac{-3-1}{0-(-5)} \\\\m=\frac{-4}{0+5} \\\\m=-\frac{4}{5}[/tex]

[tex]y=mx+b\\y=-\frac{4}{5}x +b[/tex]

(-5, 1)

[tex]y=-\frac{4}{5}x +b\\1=-\frac{4}{5}(-5) +b\\1=4+b\\-4-4\\-3=b[/tex]

[tex]y=-\frac{4}{5}x -3[/tex]

Check your answer:

[tex]y=-\frac{4}{5}x -3 \\1=-\frac{4}{5}(-5) -3\\1=4-3\\1=1[/tex]

This statement is true

Hope this helps!

what is f in this equation?
0.32=1/f

Answers

Step-by-step explanation:

0.32=1/f

1/0.32=f

f=3.125

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