Mathematics High School

y = 2x – 1
x + y = 2

Answers

Answer 1

Answer:

x = 1, y = 1

Step-by-step explanation:

plug y = 2x - 1 into the equation x + y = 2:

[tex]x + (2x - 1) = 2\\3x - 1 = 2\\3x = 3\\x = 1[/tex]

plug that into the equation y = 2x - 1

[tex]y = 2*1-1\\y=2-1\\y=1[/tex]

Related Questions

i don’t understand.
online school is hard

Answers

Answer:

4. [tex]6\sqrt{3}[/tex]

6. [tex]\frac{2\sqrt{6} }{3}[/tex]

8. 23.78

What is the equation of the line in the graph? explanation, please.
A. y = –1/3x – 1
B. y = 7/3x + 5
C. y = –5x + 7
D. y = –1/2x – 7

Answers

B.

The first thing I do with a line is sub in 0 for x. This will give you the y intercept. On the graph, we can see that the y intercept is (0,5). So, the equation we use has to have an output of 5 if we plug in 0. The only one this applies to is equation B.

change 4x - 5y = 10 into slope intercept form and graph

Answers

Answer:

Slope intercept form: y = 4/5x - 2

Step-by-step explanation:

(subtract 4x from both sides) -5y = -4x + 10

(divide everything by -5) y = 4/5x - 2

To graph, place a point at (0,-2), and then travel up 4 and over right 5 (or down 4 and to the left 5) to place the next point, then draw a line through the points

Which of the following statements are correct?
Select all that apply.

Triangle ABC is congruent to triangle DEF.
Triangle DEF is congruent to triangle GHI.
Triangle ABC is congruent to triangle GHI.
All three triangles are congruent.

Answers

Answer:B. Triangle DEF is congruent to triangle GHI.

Step-by-step explanation:

took instruction assignment on edge2021

Answer: B. or option 2. Triangle DEF is congruent to triangle GHI.

Step-by-step explanation:

The answer was correct on Edge 2022 instruction assignment. Trust me I got it right the proof is down below.  Best of luck. :)

Help please I have a timer and it almost over

Answers

Answer:

2/25 or 0.08%

Step-by-step explanation:

A rectangular prism is made up of 32 cubes, each measuring 1 4of a foot per side. What is the volume of the rectangular prism?

Answers

Answer:

quick question that 1 4 supposed to be a fraction? as in 1/4?

What is the perimeter of this triangle?
PLEASE HELP​

Answers

Answer:

Step-by-step explanation:

perimeter=16+12+20

                = 48

Answer:

48

Step-by-step explanation:

Perimeter is all of the sides added together, so add each of the outside values together. The inside value doesn't matter in this problem.

16+12+20=48

First to answer all of the questions will be marked brainiest and get some points points

Answers

Answer:

Whole numbers:

3, √4, zero

Integer but not whole:

-100, -34, -4, -8/4

Rational numbers:

89/10, 49/7, 1/2, 9.23456, 0.333...

Irrational numbers:

π, 0.456783..., √8

Answer:

Whole numbers:

3, √4, zero

Integer but not whole:

-100, -34, -4, -8/4

Rational numbers:

89/10, 49/7, 1/2, 9.23456, 0.333...

Irrational numbers:

π, 0.456783..., √8

Step-by-step explanation:

Write by what rule you know the triangles are congruent, or write CNBD for "Cannot be determined." Segments and angles are congruent only if marked congruent.

Answers

Answer:

SAS triangle congruence postulate

Help please :( I am stuck

Answers

Answer: We all hate it when we are stuck! The slope is -1/2.

Step-by-step explanation: To find the slope, figure out the change of x divided by the change of y. The change of y is -1, and the change of x is 2. Therefore, the slope of the line is -1/2.

It is -2/1 or just -2 because you must do the rise first which is counting downwards or upward then the run counting to the left or right

may you guys please help me (see picture)

Answers

Answer:

20

Step-by-step explanation:

We know that a triangle's angles must add up to 180 which means that

100+40+2x=180

solve for x

140+2x=180

2x=40

x=20

X in this problem equals 2. This is so because all angles in a triangle add up to equal 180°. You can use that fact to find that the missing angle should equal 40°. You can take that info and divide 40 by 20 which gives you 2. Hope this helps.

The angle of elevation from a boat to the top of a lighthouse is 50°.
If the boat is 150 feet from the base of the lighthouse, how tall is the lighthouse?
Round answer to the nearest foot.

Answers

9514 1404 393

Answer:

  179 ft

Step-by-step explanation:

The applicable trig relation is ...

  Tan = Opposite/Adjacent.

The height of the lighthouse is the opposite side of the right triangle. The adjacent side to the angle of elevation from the boat is the distance to the lighthouse base. Then ...

  tan(50°) = height/(150 ft)

  height = (150 ft)(tan(50°)) ≈ 178.76 ft

The height of the lighthouse is about 179 feet.

Which of the following correctly graphs the system of equations?

{y=x−3
y=−2x+3

Answers

The third one

This graph is the only one that shows the correct slops with the correct y intercepts (-3 and 3)

can someone help me ? I’m really confused and need help asap.

Answers

Answer:

-12

Step-by-step explanation:

The additive inverse means the opposite number.

the additive inverse of 12 is -12

Help me please...........

Answers

Answer:

6/19

Step-by-step explanation:

Answer:

6/19 subtracting 3 each time form the numerator

Step-by-step explanation:

Select the expression equivalent to 4(– 7) + 8.

Answers

Answer:

-20

Step-by-step explanation:

According to order of operations, multiplication comes before addition.

4(– 7) + 8 =

-28 + 8 =

-20

An expression equivalent to 4(– 7) + 8 would be:

8 + 4(-7)

This is true because of the commutative property which states that a+b=b+a

Answer:

-20

Step-by-step explanation:

It is very simple!

4x-7= -28

-28+8=20

Simplify the expression. - 2.6f + 0.45 - 16 - 8 - 2.6f + 0.45 - 16 - 8 =
I need it for an assignment an it's due today can anyone help me please?
​

Answers

Answer:

-5.2f - 47.1

Step-by-step explanation:

It's easiest if you put all the like terms and numbers together and solve from there.

-2.6f - 2.6f + 0.45 + 0.45 - 16 - 16 - 8 -8

-5.2f + 0.9 - 32 - 16

-5.2f - 47.1

PLS IM SO CONFUSLEZZZD
2+2

Answers

The answer is 4 hope this helps kindergartner

If x= 5 and y = 2, work out the value of a) 3x + y
b) 2x2
c) (x - y)2

Answers

Answer:

17, 50, 9

Step-by-step explanation:

Hello

We already know the values of x and y, 5 and 2.

All we have to do to figure out a, b, and c, is to plug in those known values.

a) 3x + y

Let's plug in x and y as 5 and 2

3(5) + 2

15 + 2

17

b) 2x^2

2(5)^2

2(25)

50

c) (x - y)^2

(5 - 2)^2

3^2

9

Answer:

A) 3(5)+2= 17

B) 2(5)2=  50

C) (5-2)2= 9

Step-by-step explanation:

Please find the solution to the following system using substitution or elimination: y = -2x + 7 y = 3x - 8

Answers

Answer:

This is improper ma'am or sir , there is to many equal sighns , is there a mistake

Step-by-step explanation:

y= 7 x 3 +8           or     x =3 y 7 −24 7

(Sorry if its wrong )

Given this expression:
[tex]8 {x}^{3} + 16 {x}^{2} - 4x + 25[/tex]
what is the coefficient with the
[tex] {x}^{2} [/tex]
term.​

Answers

Answer:

the coefficient of x^2 is 16

Step-by-step explanation:

is the number in front of the variable and exponent

Pls help! I WILL MARK BRAINLIEST IF YOU ARE CORRECT

Answers

The correct answer is C

How do I solve for X? 20 points.

Answers

That triangle is isosceles, so the bottom two angles will always be equal. With that said, the equation will be 2(65), and that equals 130. After that, subtract 180-130, and that gives you x! In total, your calculations should look like this:
2(65)
180-130
x=50°

Step-by-step explanation:

[tex] \underline{ \underline{ \text{Given}}} : [/tex]

[tex] \angle \: ABC = 65 \degree[/tex]

[tex] \underline{ \underline{ \text{To \: Find}}} : [/tex]

Value of x

[tex] \underline{ \underline { \text{Solution}}} : [/tex]

[tex] \angle \: ACB = \angle \: ABC = 65 \degree[/tex] [ Base angles of isosceles triangle are equal ]

[tex] x \degree + 65 \degree + 65 \degree = 180 \degree[/tex] [ Sum of angle of a triangle ]

⟼ [tex] x \degree + 130 \degree = 180 \degree[/tex]

⟼ [tex] x \degree = 180 \degree - 130 \degree[/tex]

⟼ [tex] x = 50 \degree[/tex]

[tex] \red{ \boxed{ \boxed{ \tt{Our \: final \: answer : \boxed{ \underline{ \tt{x = 50 \degree}}}}}}}[/tex]

Hope I helped ! ♡

Have a wonderful day / night ! ツ

▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁

Lin runs five minutes around the track in 6 minutes. How many laps per minute is that ?

Answers

Answer:

1.2

Step-by-step explanation:

John rode 2 kilometers on his bike. His sister Sally rode 6,000 meters on her bike. How many more kilometers did Sally ride?

Answers

Answer:

I don't understand, please write again

Answer:

Sally rode 4 kilometers more than her brother.

Step-by-step explanation:

1,000 meters = 1 kilometer

So if you convert Sally's meters into kilometers, you get 6 kilometers. John rode 2 kilometers so you do 6 kilometers - 2 kilometers = 4 kilometers.

Now you got your answer!

Hope this helped.

please someone help me no one willl

Answers

Answer:

2/36 (5.556%)

I believe so correct me if I am wrong

Please help I’m failing math and I might get held back

Answers

Answer:

[tex]tan 56 = \frac{26}{x}[/tex]

Step-by-step explanation:

[tex]tangent = \frac{opposite}{adjacent}[/tex]

Side z is the hypotenuse, since it is opposite the right angle.

Side x is the adjacent, since it is next to the angle you are solving for.

The side measuring 26 is the opposite, since it is opposite the angle you are solving for.

Manny begins the summer with $200​

Answers

Do you have the rest of the question so I can answer

Answer:

1200

Step-by-step explanation:

the measure of the hypotenuse is? (side c)

Answers

answer: 25
explanation:
7² + 24² = c²
49 + 576 = c²
625 = c²
c = √625
c= 25

or just know some pythagorean triples

The answer is 25

Sooooo to find the hypotenuse you gotta use this formula: a^2+b^2=c^2.

Quadrilateral WXYZ is a rectangle. Diagonals WY and ZX intersect at P. If PY=3x−5 and WP=2x+11, find the value of ZP.

ZP=43

ZP=25

ZP=16

ZP=66

Answers

Answer:

The right answer is ZP = 43

Step-by-step explanation:

I just took the quick check

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