Use substitution. What is the solution to the system of equations?

y=1/2x+2
2y=x+4

Answers

Answer 1

Answer: Infinitely many solutions.

Step-by-step explanation:

[tex]y=\frac{1}{2}x+2\\2y=x+4\\[/tex]

Use [tex]\frac{1}{2} x+2[/tex] for y in [tex]2y=x+4[/tex]

[tex]2(\frac{1}{2}x+2)=x+4\\x+4=x+4\\x-x = 4-4\\0=0[/tex]

Infinitely many solutions.


Related Questions

(section 6.1) Find the length of the small arc formed by the intersection of the unit circle a circle centered at the origin with a radius of 1: x2 + y2 = 1 and the line 2 y=1/2​

Answers

Answer:

The length of the arc is approximately 2.0944

Step-by-step explanation:

The given parameters are;

The equation of the circle = x² + y² = 1

The radius of the circle, r = 1

The equation of the line, y = 1/2

Therefore, we point where the line intersects with the circle are given as the points 'y = 1/2' as follows;

When y = 1/2, the equation of the circle becomes;

x² + (1/2)² = 1

x² = 1 - (1/2)² = 3/4

x = ±√3/2

The angle subtended by the arc, θ = 2 × arctan((√3/2)/(1/2)) = 120°

The circumference of the circle, C = 2·π·r

∴ C = 2 × π × 1 = 2·π

The length of the arc, l = (θ/360) × C

∴ l = (120/360) × 2·π = (2/3)·π

The length of the arc, l = (2/3)·π ≈ 2.0944

The length of the arc is approximately 2.09

The intersection of the unit circle a circle

From the question, we have the following parameters

The equation of the circle = x² + y² = 1

The radius of the circle, r = 1

The equation of the line, y = 1/2

The line intersects with the circle are given as the points 'y = 1/2' as follows;

When y = 1/2, the equation of the circle becomes;

x² + (1/2)² = 1

x² = 1 - (1/2)² = 3/4

x = ±√3/2

Determine the subtended angle

The angle subtended by the arc is expressed as:

θ = 2 × arctan((√3/2)/(1/2))

θ = 120°

The circumference of the circle, C = 2·π·r

C = 2 × π × 1 = 2·π

The length of the arc, l = (θ/360) × C

l = (120/360) × 2·π = (2/3)·π

The length of the arc, l = (2/3)·π ≈ 2.09

The length of the arc is approximately 2.09

Learn more on length of an arc here:https://brainly.com/question/2005046

You reverse the inequality symbol when you multiply or divide both sides of an inequality by the same negative number true or false

Answers

Answer is in the file below

tinyurl.com/wpazsebu

Answer:

When you multiply both sides by a negative value you make the side that is greater have a "bigger" negative number, which actually means it is now less than the other side! This is why you must flip the sign whenever you multiply by a negative number.

Step-by-step explanation:

Your Welcome

Karina ate 1/2 of the muffins. Ulysses ate 1/4 of the muffins. Zawanna ate 1/5 of the muffins. Juan ate the rest of the muffins. What fraction of the muffins did Juan eat?

Answers

Answer:

1/20

Step-by-step explanation:

Karina ate 1/2 of the muffins. Ulysses ate 1/4 of the muffins. Zawanna ate 1/5 of the muffins. Juan ate the rest of the muffins. What fraction of the muffins did Juan eat?

Let the total number of muffins = 1

Hence:

The fraction of muffins Juan ate =

1 - (1/2 + 1/4 + 1/5)

Lowest common denominator is 20

1 - ( 10 + 5 + 4/20)

1 - 19/20

= 1/20

The Fraction of muffins Juan ate is 1/20

Graph the following systems of equations and determine the solution of the system .​

Answers

Answer:

We can find the solution to a system of equations by graphing the equations. Let's do this with the following systems of equations:

what is meant by algebraic equation​

Answers

Answer:

An algebraic equation is an equation used in algebra which uses numbers and letters. The letters are representing unknown numbers and are called variables.

Answer:

An algebraic equation is "a mathematical statement in which two expressions are set equal to each toher."

If that is too complicated to understand, look at it like this. An algebraic equation usually has two things: an equal sign, and letters. For example, this is an algebraic equation: x + 3 = 7.

Step-by-step explanation:

The farmer owned 100 acres of land. A year later he bought more property and then owned 140 acres. Is this a percent increase or decrease? Find the % change. Round to the nearest whole percent, if necessary.

Answers

Answer:

The percentage change (an increase) wa 40%.

Step-by-step explanation:

The beginning number of acres was 100; adding 40 more brought that to 140 acres.  This was an increase.  Dividing the increase (40) by the starting value (100) yields 0.40.  Finally, multiplying this result by 100% yields 40%.

The percentage change (an increase) wa 40%.

(x^2+8x+16)-1-16

what is the vertex form

Answers

Answer:

Use photo math, it will explain it all in different forms

What is the value of x?
5x+3/-2=4
HELP HELP HELP

Answers

Answer:

5x+3=4*-2

5x+3= -8

5x=-8-3

x= -11/5

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HELP I NEED HELP ASAP

Answers

i think the correct answer would be b:]
D is the answerrrrrrrrrrrrrrrrrrr

**PLEASE HELP ILL MARK BRAINLIEST** the table shows the values of y for different values of x. What are the rate of change and the initial value for y

Answers

D
you can also write it as y = - 3/2x + 3

Answer:

It's D. The initial value of y is 3 because 6,9 and 12 are 3 digits apart, and it always is Y over X

QUICK

The figure shows the outline of a new pier that is going to be built at the ocean. What is the area of the pier? Use 3.14 for pi.

Answers

Answer:

7502.88m^2

here u go hope it helps

The area of the pier is approximately 1231.62 square meters.

What is a circle?

A circle is a two-dimensional figure with a radius and circumference of 2pir.

The area of a circle is πr².

We have,

The pier is in the shape of a semicircle.

So,

The area of a semicircle is half of the area of a circle with the same diameter.

The area of a circle with a diameter of 56m is:

A = πr² = π(28)² = 2463.23 m²

So,

The area of the semicircle is:

A/2 = 2463.23/2= 1231.62 m²

Therefore,

The area of the pier is approximately 1231.62 square meters.

Learn more about circle here:

https://brainly.com/question/11833983

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(answer ASAP! thanks.) "As part of a math project, Joel recorded the types of vehicles passing an intersection in one hour. His results are shown on the table below. Explain how you can determine the percent of each type of vehicle. Then calculate the percent of vehicles that are not trucks."
Car: 73
Small truck: 16
Large truck:6
Motorcycle: 2
Bicycle: 3

Answers

Step-by-step explanation:

There is a total amount of vehicle of 100

which is good because now you can say 73% is cars 16% is small trucks 6% is large trucks and 2% motorcycle and 3% bicycle. Adding the trucks (small 16, large 6) gives us 24% so you can do 100% - 24% and get 74%. Thanks and goodbye!

What is the percent change from 35 to 63? Indicate whether it is a percent increase or decrease.

Answers

Answer:10%

Step-by-step explanation:

its is a percent increase because 35 to 63 is going to be 10% going up.

solve the simultaneous equation plz x

Answers

Answer:

x=4,y=3

Step-by-step explanation:

x=19-5y if we transpose equation 2 for x.

Plug that into equation 1

4(19-5y)+3y=25

76-20y+3y=25

76-25=17y

51=17y

y=3

Plug y=3 into equation 2

x+5(3)=19

x=19-15=4

Answer :Value of x is 4 Value of y is 3 Explaination :

We are having two equations,

4x + 3y = 25 (Equation No 1)x + 5y = 19 (Equation No 2)

From Equation No 2 :-

>> x + 5y = 19

>> x = 19 - 5y

From Equation No 1 :-

Substitute here the value of x which we got above as (19 - 5y).

>> 4x + 3y = 25

>> 4 (19 - 5y) + 3y = 25

>> 4 × (19 - 5y) + 3y = 25

>> 76 - 20y + 3y = 25

>> 76 - 17y = 25

>> -17y = 25 - 76

>> -17y = -51

>> 17y = 51

>> y = 51 / 17

>> y = 3

Finding out value of x :-

>> x = 19 - 5y

>> x = 19 - 5(3)

>> x = 19 - 5 × (3)

>> x = 19 - 15

>> x = 4

Consider the figure shown below, find the value of
g


Answers

Given:

A figure of a triangle.

To find:

The value of g.

Solution:

Law of Cosines:

[tex]a^2=b^2+c^2-2bccosA[/tex]

Using the Law of Cosines for the given triangle, we get

[tex]g^2=8^2+7^2-2(8)(7)cos(65^\circ)[/tex]

[tex]g^2=64+49-112(0.4226)[/tex]

[tex]g^2=113-47.3312[/tex]

[tex]g^2=65.6688[/tex]

Taking square root on both sides.

[tex]g=\sqrt{65.6688}[/tex]

[tex]g=8.10363[/tex]

[tex]g\approx 8.10[/tex]

Therefore, the value of g is about 8.10 units.

I WILL GIVE BRAINLIEST!!!

Answers

Answer:

Step-by-step explanation:

PLEASE HELP ASAP!!!!!

In the figure, line EH intersects line JF at point I.
What is the measure of ZGIH?

Answers

if u are talking about GIH, it is 22°

In ΔJKL, the measure of ∠L=90°, the measure of ∠J=18°, and KL = 6.1 feet. Find the length of JK to the nearest tenth of a foot.

Answers

Answer: 19.7

Step-by-step explanation:

Answer:

19.7

Step-by-step explanation:

Find the volume of a right circular cone that has a height of 19 ft and a base with a diameter of 18.7 ft. Round your answer to the nearest tenth of a cubic foot.

Answers

Answer:

1739.42393 cubic foot

Step-by-step explanation:

volume of cone= 1/3× πr²h

r= d/2= 9.35ft

putting the value in the formula and calculating

l

[tex]x^{2} -x-6[/tex]

Answers

Answer:

1. (x-3)(x+2)

2. (x-5)(x-3)

3. x= 2,1

4. x= -2,-4

5. x= 3,-7

6. x= 1,-8

7. x= 5,-7

8. x= -1/3,-2

Step-by-step explanation:

Identify the area of the composite shape.
71 cm squared
98 cm squared
34 cm squared
56 cm squared

Answers

Answer:

71, the explanation is in the other question

For the bar graph, what is the total population surveyed?
A)
303
B)
3.030
3,030,000
D) 303,000
100/trandid-53868element=&difficulty=assessment&assignment id=43703088&load test=1&teach

Answers

Answer:

303

Step-by-step explanation:

I need help with this one to.

Answers

the answer is angle 6 and 7 because they both will equal 180 degrees

Answer:

Angle 6 and 7

Step-by-step explanation:

Supplementary angles are those angles that measure up to 180 degrees

An eagle eats about 1 bound of food in 1 day. A crow eats about 3 pounds of food in 2 days which bird eats more more food per day.

Answers

Answer:

The crow eats more food per day.

Step-by-step explanation:

eagle eats 1 pound per day.

crow eats 3 pounds/2 days -> 1.5 pounds per day

1.5 > 1

The crow eats more because the eats 3/2 food per day and the eagle eats 1 pound per day. And 3/2= 1 1/2

A cube has a surface area of 216 square centimeters. What is the length of each side of the cube?

Answers

Answer:

6 centimeters

Step-by-step explanation:

There are 6 sides, so each side would have an area of 216/6 = 36.

Then, since each side is a square you know that the length of one side would be [tex]\sqrt{36} = 6[/tex]

Solve for x, rounding to the nearest hundredth.
550.3^ x = 50

Answers

Answer:

- 2.18

Step-by-step explanation:

550 × [tex]3^{x}[/tex] = 50

[tex]3^{x}[/tex] = [tex]\frac{1}{11}[/tex]

[tex]log_{3}[/tex] [tex]\frac{1}{11}[/tex] = x

x = [tex]log_{3}[/tex] 1 - [tex]log_{3}[/tex] 11

[tex]log_{3}[/tex] 1 = 0

[tex]log_{3}[/tex] 11 = 2.1826583386

x - 2.18

25% of the normal price of a watch is $15. What is the normal price?

Answers

Answer:

60

Step-by-step explanation:

15 times 4

b) Here are the first four terms of another sequence.
7
11 15 19
Write an expression for the nth term of this sequence.

Answers

Answer:

Tn = 4n+3

Step-by-step explanation:

It is an Arithmetic Sequence

a=7

d=11-7 =4

Tn= a+(n-1)d

= 7+(n-1)4

= 7+4n-4

= 4n+3

I suck at math lololol

Answers

2 and 4

Step-by-step explanation:

This image shows an example on corresponding angles.

Answer:

Angle 2 and 4

uh its coordinates planes you can ss it and send it to me as the answer on here ty ill give brainlist to the first person that gets it right ty ty

Answers

Answer:

G

Step-by-step explanation:

Dude really

Answer:

A. G is the correct answer

Step-by-step explanation:

the quadrants are shown in the picture

and G. is the only one that fits the description

hope this helps <3

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