Solve the equation, 2x + 1 = 3, for x. Which of the following properties of equality did you apply? Question 11 options: A) Addition and division B) Addition and multiplication C) Subtraction and multiplication D) Subtraction and division

Answer:

Scalene

Step-by-step explanation:

Because all of the sides are different lengths

Answer:

∠45°

Step-by-step explanation:

When looking at a unit circle, the only acute angle (an angle between

0° and 90°) that consists of an equal sine and cosine is 45°. This is because:

[tex]sin 45 = \frac{\sqrt{2} }{2}[/tex]

[tex]cos45 = \frac{\sqrt{2} }{2}[/tex]

45° is the only acute angle that contains an equal sine and cosine.

Answer:

45 degrees

Step-by-step explanation:

Since Sin(90-x) = Cos(x), we can find that the angle at which 90-x=x is 45 degrees. This corresponds to [tex]\frac{\pi }{4}[/tex] radians

Answer:

(x-3)^2 + (y+2)^2 = 9^2

Step-by-step explanation:

x^2 -6x+y^2+4y-68 = 0

Complete the square

x^2 -6x+y^2+4y-68+68 = 0+68

x^2 -6x+y^2+4y = 68

Find the term to add for x

-6 /2 = -3  -3^2 = 9

Find the term to add for y

4/2 =2  2^2 = 4

Add 9 and 4

x^2 -6x+9+y^2+4y+4 = 68+9+4

(x-3)^2 + (y+2)^2 = 81

(x-3)^2 + (y+2)^2 = 9^2

The standard form is

(x-h)^2 + (y-k)^2 = r^2 where (h,k) is the center and r is the radius

Answer:

Step-by-step explanation:

i think it is a circle

Answer:

Circle

Step-by-step explanation:

The equation for a circle is in the form (x - h)² + (y - v)² = r², where (h, v) is the center of the circle and r is the radius.

A circle with its center at the origin will have an equation that looks like x² + y² = r², which is the form this equation is in.

That's how we know this equation belongs to a circle!

Hope this helps :)

Answer:

120

Step-by-step explanation:

The sum of the degrees in any quadrilateral is 360. So add up all of the degrees you know and subtract it from 360 to get your answer.

120 + 60 + 60 = 240

360 - 240 = 120

another way you know that's easier is the angles that are diagonal are equal to one another, so since x is diagonal to 120, it is equal to 120.

Answer:

52°

Step-by-step explanation:

By remote interior angle theorem of a triangle:

115° = 63° + x° ( x is the vertical angle of one interior angle of the triangle)

x° = 115° - 63°

x° = 52°

x = 52

Answer:

Height: 48

Base: 34

Step-by-step explanation:

The formula for a triangle is 1/2(base)(height)

1/2(3x+10)(6x) = 816

18x² + 60x = 1632

18x² + 60x - 1632 = 0

Then, we use the Quadratic formula

x = (-60 ± √3600 + 117,504)/36

x =( -60 ± 348/36)

x = 288/36

x = 8

3(8) + 10

= 34

6(8) = 48

Therefore the dimensions are:

Height: 48

Base: 34

Answer:

120 miles is the answer

Answer:

answer is the seconddd one

Answer:

y+7= -6/5(x+3)

Step-by-step explanation:

Point slope form for a line is given by

y-y1 = m(x-x1) where m is the slope and (x1, y1) is a point on the line

y - -7 = -6/5(x - -3)

y+7= -6/5(x+3)

Answer:

  B.  -1 ≤ y ≤ 1

Step-by-step explanation:

The range is the vertical extent of the function. Here, it appears the function is a sine function (y=sin(x)). The least value of the function is -1; the greatest value is +1. The function can take on any value between these extremes.

An appropriate description of the range is ...

  -1 ≤ y ≤ 1

_____

Comment on problem presentation

Please use the appropriate math symbol (≤) to represent "less than or equal to." If you cannot use the equation editor or symbols page provided by Brainly, you can use the combination <= to mean the same thing. "S" or "s" does not convey the same information.

Answer:

G(x)=−12x2−2x

Step-by-step explanation:

Answer & Step-by-step explanation:

9x² + 6x + 12x + 8

First, simplify the expression.

9x² + 18x + 8

Now that you have simplified the expression, you can start factoring it. First, you have 9x². You can factor into 3x and 3x because 3 times 3 is 9 and once you multiply x by x, you will get x².

(3x + )(3x + )

Now that we have this part of the factoring, we have to find the other part. We can do this by looking at our constant number. Constant meaning a number that does not have a variable beside it. So, in this case, our constant is 8. We can reduce 8 into 2 and 4 because 2 times 4 is 8.

(3x + 2)(3x + 4)

So, the factored form of 9x² + 6x + 12x + 8 is (3x + 2)(3x + 4)

Answer:

Step-by-step explanation:

Answer:

I would say C.

Step-by-step explanation:

Answer:

Third graph down

Step-by-step explanation:

2x -6 ≥ 6(x-2)+8

Distribute

2x - 6≥6x -12+8

Combine like terms

2x - 6≥6x -4

Subtract 2x from each side

2x-6-2x ≥6x-2x-4

-6 ≥4x-12

Add 4 to each side

-6+4 ≥4x-4+4

-2 ≥4x

Divide by 4

-2/4 ≥4x/4

-1/2≥x

Closed circle at -1/2

Line going the the left

Answer:

Step-by-step explanation:

Using set notation to answer the question.

let n(U) be the total number of people surveyed = 1000

n(L) be number of people that visited London = 310

n(P) be number of people that visited Paris = 222

n(P∩L) be number of people that visited both cities = 118

n(P∪L)' be number of people that visited none of the cities = x

n(U) = n(PUL) + n(PUL)'

We willl get n(PUL) using the formula;

n(PUL) = n(P)+ n(L)-n(P∩L)

n(PUL)= 222+310-118

n(PUL)= 414

Since n(U) = n(PUL) + n(PUL)'

1000 = 414+n(PUL)'

n(PUL)' = 1000-414

n(PUL)' = 586

586 peoples visitied none of these cities?

Answer:

66.666% or 66.7% if rounded to the nearest one decimal place

Step-by-step explanation:

12÷18 × 100

So the right answer is (7,-2)

Look at the attached picture

Hope it will help you

Good luck on your assignment

Answer:

B. How many pets does each student in your class have?, C) How fast does each student in your PE class run the mile?, and A) How many inches tall is each person in your class?

Explanation:

These answers that I listed I would think would be correct because it’s saying which questions are statistical.

Answer:

Midpoint: (1, -7/2)

Step-by-step explanation:

Midpoint formula is given. Simply plug in the numbers corresponding to the variables and you should get your answer.

Answer:

Step-by-step explanation:

[tex](9,2) . (-7,-9)\\x_{1} =9\\y_{1} =2\\x_{2} = -7\\y_{2}=-9\\ Midpoint =[\frac{x_{1}+x_{2} }{2} , \frac{y_{1}+y_{2} }{2}]\\M.P = [\frac{9+(-7)}{2} , \frac{2+(-9)}{2} ]\\M.P = [\frac{9-7}{2} , \frac{2-9}{2} ]\\M.P = [\frac{2}{2} , \frac{-7}{2} \\M.P = [1 , -7/2][/tex]

Answer:

it's either x=75° and y =85°

or x= -75° and y= -85°

because it's below!

Answer:

x=95°

y=105°

Step-by-step explanation:

opposite angle of a cyclic triangle are supplementary.

x+85=180

x=180-85=95°

y+75=180

y=180-75=105°

Answer:

2 and .6.

4 and 8.

3 and

Answer:

6.3

Step-by-step explanation:

√6²+2²=√40= 6.3

Answer:

Distance between A and B is approximately 6.3 units

Step-by-step explanation:

We can use the Pythagorean Theorem to solve this question. Notice that the distance in between the two points (straight segment that joins both) can be identified to the "hypotenuse of a right angle triangle shown in the attached image. Such triangle has two legs that measure 2 units one of them and 6 units the other one.

The length of the associated hypotenuse is given then by:

[tex]distance=\sqrt{2^2+6^2}\\distance=\sqrt{40} \\distance=6.32455[/tex]

So this rounded to the nearest tenth is:

6.3 units

Rotate it 90 degrees so that the would be the top.

Area of a trapezoid = (top+ bottom)/2 x height.

Each line on the graph is 2 units.

Top = 2

Bottom = 8

Height = 6

Area = (2+8)/2x6 = 30square units

Answer:

First answer option:

"The first equation should be multiplied by 2 and the second equation by 3. "

Step-by-step explanation:

The first equation should be multiplied by 2 and the second equation by 3. This way the term in y in the first equation becomes "(2) (-3y) = -6y", and the term in y in the second equation becomes "(3) (2y) = 6y" so when added term by term, the term in "y" disappears.

That is represented by the first statement in your list of possible answers

Answer:

The answer is b.

Step-by-step explanation:

If the for is filled than it is included

Answer:

the answer is d: x=-11/3

Answer:

Step-by-step explanation:

5. 70 L = 70000 mL

6. 10 mL = 0.01 L

7. 1.2 L = 1200 mL

8. 3500 mL = 3.5 L

9. 4 L = 4000 mL

10. 230 mL = 0.23 L

11. 6.21 L = 6210 mL

12. 5000 mL = 5 L

Answer:

The guys above or below me is correct

Step-by-step explanation:

Answer:

346

Step-by-step explanation:

like i multiply 5 by 4 twice

2 by 9 twice

2 by 10 twice

9 by 10 twice