Solve the following systems of equations by any method.
1. 2y - 4 = 0
x + 2y = 5

Answers

Answer 1

Answer:

pemdas

Step-by-step explanation:

PEMDAS: Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right).

Answer 2
(1,2)
good luck and pls mark brainliest

Related Questions

you start at 5,4 and move 2 units left and 2 units down

Answers

Answer:

(3,2)

Step-by-step explanation:

Answer:
(3,2)

Explanation:
When you move the point up, add to the y-coordinate. When you move the point down, subtract from the y-coordinate.
When you move the point to the right, add to the x-coordinate. When you move the point to the left, subtract from the x-coordinate.

(5,4)
Because we move 2 units left, we subtract 2 from the x-coordinate.
(3,4)
Because we move 2 units down, we subtract 2 from the y-coordinate
(3,2)

I hope this helps!

What is the slope of the line in the graph?

Answers

The slope of the line is 1.

Find the slope intercept form equation by using the point slope formula which is y=x+1;)

Answer:

m = 1

Step-by-step explanation:

What is the point on the unit circle for the angle below? Help Res 60° (1.0) 2 ?] 2 ) 9 2 Enter​

Answers

Answer:

1 and 3

Step-by-step explanation:

Answer:

The answer is

[tex] \frac{1}{2} \: and \: \frac{ \sqrt{2} }{2} [/tex]

Step-by-step explanation:

Let The point (X, Y)

Since half of the diameter is equal to 1

Then

[tex] {x}^{2} + {y}^{2} = 1[/tex]

Why is the measurement of angle is equal to 60, this triangle was equal

Then

[tex] {(x - 1)}^{2} + {y}^{2} = 1[/tex]

By comparing the equals together

[tex] {x}^{2} = {(x - 1)}^{2} \\ {x}^{2} = {x}^{2} - 2x + 1 \\ 2x = 1 \\ x = \frac{1}{2} \\ Compensation \: in \: any \: equation \\ then \: y = \frac{ \sqrt{2} }{2} [/tex]

CAN ANYONE PLEASE HELP ME ?!?!?! I NEED HELP WITH MATH IF YOU HAVE A COUPLE MINUTES CAN YOU PLEASE HELP?! I NEED HELP WITH MATH, SYSTEMS OF EQUATIONS IN 9TH GRADE MATH TO BE SPECIFIC

Answers

Answer:

Ok ill help whats the problem

Step-by-step explanation:

Which of the following is the same as 4*39*23

Answers

Answer:

What are the answer choices if there are any

Step-by-step explanation:

13 = x + 5
Thank you

Answers

Answer:

X = 8 because 8 + 5 = 13

Step-by-step explanation:

Answer:

X=8

Step-by-step explanation:

13=X+5

you want the X to be alone so shift whatever is beside it to the other side with changing the sign

13-5=X

8=X

A city has a population of 350,000 people, suppose that each year the population grows by 5%. What will the population be
after 14 years?

Answers

Answer:

595,000

Step-by-step explanation:

find 5% of the present population

5/100*350,000 =17,500

there fore the population increases by 17,500 yearly

in 14 yrs time

=(14*17500) + 350,000

=245000+350000

=595000

35 = -7a + 14
Solve for a

Answers

Answer:

a = -3

Step-by-step explanation:

35 = -7a + 14

-14 + 35 = -7a + 14 - 14

21 = -7a

21/-7 = -7a/-7

-3 = a

a = -3

Answer:

-3=a

Step-by-step explanation:

35=-7a+14

subtract 14

21=-7a

divide both sides by -7

-3=a

Which of these lengths could be the sides of a triangle?
A) 5 cm, 19 cm, 14 cm
B) 14 cm, 24 cm, 8 cm
C) 19 cm, 5 cm, 15 cm
D) 24 cm, 14 cm, 9 cm

Answers

Answer:

c

Step-by-step explanation:

in order for it to be a triangle the smaller sides have to add up to be greater than the longest side

for a 5+14=19 so that is not a triangle because the  side dont add up to be greater than 19

for b 14+8=22 so that is also not a triangle because the sides dont add up to be greater than 24

for c 5+15=20 so that is a triangle because to 2 shorter sides added are greater than the longest side

for d 14+9=23 so that is not a triangle because the two smaller sides dont add up to be greater than 24

Solve the system of equations by graphing. [x+y=4 7x-6y=54​

Answers

Answer:

(x,y)=(6,-2)

Step-by-step explanation:

to understand thisyou need to know about:linear equationsystem of linear equationsolving system of linear equation by graphingPEMDASgiven:[tex] \begin{cases} \sf x + y = 4 \\ \sf7x - 6y = 54 \end{cases}[/tex]tips and formulas:to solve system of linear equation by graphing we have to simplify the linear equations to slope-intercept formslope intercept form:y=mx+blet's solve:

let's simplify first linear equation to slope -intercept form

x+y=4

y=-x+4

table for this equation

see the first attachment picture

let's simplify first linear equation to slope -intercept form

[tex] \sf7x - 6y = 54[/tex]

[tex] \sf - 6y = - 7x + 54 \\ \sf \frac{ - 6y}{ - 6} = \frac{ - 7}{ - 6} x + \frac{54}{ - 6} \\ \sf y = \frac{7}{6} x - 9[/tex]

table for this equation

see the second attached picture

solutions by graphing the system of linear equation

see the last attached picture

note: the red line is for first equation as well as the green line is for second equation and the black dot is the coordinates of the solutions of x and y

HURRYYY!!
Which of the following expressions is correctly written in scientific notation?
32.1 x 107
7.31 x 10-2
0.22 x 10-

Answers

Answer:

The middle one

Step-by-step explanation:

A​ self-tanning lotion advertises that a 4 ​-oz bottle will provide seven applications. Jen found a great deal on a 13 ​-oz bottle of the​ self-tanning lotion she had been using. Based on the advertising​ claims, how many applications of the​ self-tanner should Jen​ expect?

Answers

Answer:

22.75 applications

Step-by-step explanation:

From the above question, we understand that:

4 ​-oz bottle = 7 applications

13 ​-oz bottle = x applications

Cross Multiply

4 -oz bottle × x applications = 13 -oz bottle × 7 applications

x applications = 13 -oz bottle × 7 applications/4 -oz bottle

x applications = 22.75 applications

Therefore, the number of applications of the 13 -oz bottle​ self-tanner that should Jen​ expect is 22.75 applications.

The number of applications that Jen can expect from the self-tanner is 22.75 applications.

The first step is to determine how many applications 1 -oz of the bottle can provide.

Number of applications 1 -oz of the bottle can provide = 7/4 = 1.75

The second step is to multiply the figure gotten in the previous step by 13

13 x 1.75 = 22.75 applications

A similar question was answered here: https://brainly.com/question/5026010

please help me on this will give you brainliest!

Answers

Answer:

56 Degrees, 132 Degrees

Step-by-step explanation:

First, a complementary angle is the angle that adds up to 90 degrees while a supplementary angle adds up to 180 degrees.  To find A, simply do [tex]90-34=56[/tex].  To find B, simply do [tex]180-48=132[/tex].

Evaluate the expression when a=3, b=2, and c=12: 6+a​

Answers

9 is your answer.


6+3 is 9. You added these two because a=3.

The diameter of a circle measures 14ft. What is the circumference of the circle?

Answers

circumference= 43.98

What is the rate of change of the function
y= - 3x + 2?

Answers

Answer:

x = 2/3

Step-by-step explanation:

Answer:

X=2/3 answer this is of your question

I need help on math:(

Answers

Answer:

A. 10

Step-by-step explanation:

The perimeter is the sum of all the outside lengths

Therefore, to find the value of x, you must do:

x + x + 5 + x + 7 = 42

3x + 12 = 42

3x = 30

x =10

What is the mean average of 100, 75, 40, 90, 80, 100, 92, 88, 80, 84, 81?

Answers

Answer:

The mean average is 82.727272727273

Answer:

82.727272727272727272727272728

Step-by-step explanation:

(100+75+40+90+80+100+92+88+80+84+81)/11

Un dirigible que está volando a 800 m de altura, distingue un pueblo con un ángulo de depresión de 12°. ¿A qué distancia del pueblo se halla?

Answers

Answer:

3764 m

Step-by-step explanation:

Resolvemos usando la función trigonométrica de tangente.

tan θ = Opuesto / Adyacente

θ = Ángulo de depresión = 12 °

Opuesto = 800m

Adyacente = Distancia de la ciudad = x

Cruz multiplicar

bronceado 12 = 800 / x

Cruz multiplicar

bronceado 12 × x = 800

x = 800 / tan 12

x = 3763.7040876 m

Aproximadamente = 3764 m

Find the values of x and y - will give brainliest if right

Answers

Answer:

x=31 and y=45.........

Answer:

4x=3y-11

3y-11=180-56

3y-11=124

3y=135

y=45

4x=124

x=31

Step-by-step explanation:

39 divided (2+1) - 2x(4+1)

Answers

the answer is,

[tex]13 - 10x[/tex]

The population of a certain city be modeled by y=7870(1.01)^x where x is the number of years since the city was founded and y is the population.

Answers

Answer:

B.

Step-by-step explanation:

We are given the function:

[tex]y=7870(1.01)^x[/tex]

Which represents the population of a certain city x years after it was founded.

The y-intercept is the y-value when x = 0. So:

[tex]y(0)=7870(1.01)^0=7870(1)=7870[/tex]

If x = 0, this means that zero years have passed since the city was founded.

So, the y-intercept represents the initial amount of people when the city was founded (in this case, there were 7870 people).

The correct answer is B.

I need help ASAP! Awarding 30 points

Answers

Answer:

its b or c

Step-by-step explanation:

oof oof oof b or x

Find the value of x so that f(x)=3

Answers

Answer:

f(x) = (1/3)x - 2  

f(x) = (1/3)(3) - 2  

f(x) = 1 - 2  = -1

Step-by-step explanation:

f(x) usually refers to a function not a multiplication of two variables

ASAP ASAP ASAP ASAP MATH MATH MATH homework

Answers

Answer:

$20

Step-by-step explanation:

Simple, if he sold 16 pretzels, and each one costs $1.25, then multiply the cost by how many:

16X1.25=20

So he got $20

I hope this helps!

Answer:

20

Step-by-step explanation:

When buying tickets to a play​ online, they cost ​$12.75 per ticket plus a ​$12 fee per order. When buying tickets at the box​ office, they cost ​$15.75 per ticket. The total​ cost, c, of n people buying tickets for the play using either method to purchase tickets can be represented by an equation. Write the system of equations. Choose the correct answer below.

Answers

Answer:

c = 12.75n + 12

c = 15.75n

Step-by-step explanation:

Let

c = total​ cost of the ticket

n = number of people buying tickets

Buying tickets online

c = 12.75n + 12

Buying from the box office

c = 15.75n

This can be represented by the system of equation:

c = 12.75n + 12

c = 15.75n

What is the equation of the line with an x-intercept of -1 and a y-intercept of 2?
y = - 2 x + 2
y = 2 x - 2
y = 2 x + 2

Answers

Answer:

y = 2x + 2

Step-by-step explanation:

The general form

is;

y = mx + b

where m is the slope and b is the y-intercept

so we have;

y = mx + 2

To get m, substitute the point (-1,0)

So we have

0 = -m + 2

m = 2

So the equation is;

y = 2x + 2

y=2x+5,y=0.5x-1 solve

Answers

Answer:

y=2x+5............(1)

y=0.5x-1...........(2)

Step-by-step explanation:

equalizing equation (1)&(2),we get

2x+5=0.5x-1

2x-0.5x=-1-5

1.5x=-6

x=-6/1.5=-4

substituting value of x in equation (1),we get

y=2×-4+5=-8+5=-3


If it took 10 hours to mow
of 15 lawns, then at that
rate, how many lawns could be sell in : mowed in 24 hours? What was the
rate of lawns mowed per hour?

Answers

if that’s the equation then You’re answer is thirty two

GEOMETRY: You are building a shelf that fits in a corner. In the figure, the entire shelf is IJK . Each unit in the coordinate plane represents one inch.

Answers

Answer:

A= 12.5 inches²

Step-by-step explanation:

a=1/2bh

a=1/2(5)5

a=1/2(25)

a= 12.5

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