Use elimination to solve the system of equations.


–8x – 12y = 104
10x + 12y = –124

Answer:

1) obtuse triangle

2) equilateral triangle

3) isosceles triangle

4) equilateral triangle

5) scalene triangle

6) acute triangle

7) right triangle

8) obtuse triangle

9) acute triangle

Answer:

Alan = 24, Tiki = 30, Hans = 48

Step-by-step explanation:

let x be the number of texts alan sent

[tex]x + 2x + x + 6 = 102\\4x + 6 = 102\\4x = 96\\x = 24[/tex]

Alan: 24

Tiki: 24 + 6 = 30

Hans: 24 * 2 = 48

Answer:

The answer is: x = 18.

Step-by-step explanation:

1) That is a right angle, so it equals 90 degrees. You can add together the 'x'es that you see in the photo, and x + x +3x = 5x.

2) Set that equal to 90, so: 5x = 90.

3) Divide by 5 on both sides, to get x = 18.

Hope this helps! Feel free to give me Brainliest if you feel this helped. Have a good day, and good luck on your assignment. :)

Answer:

9.32-7000=-6990.68 is your answer

Answer:

B

y=2x+4

Step-by-step explanation:

The y-intercept is 4, as the line passes through the y-axis only once, and at (0,4)

The format of a linear graph is y=mx+b where m is the slope and b is the y-intercept.

You can already tell that B is the only one with the y-intercept of 4.

The slope can be calculated quite easily, as we will start from (0,4) and make our way up to the next easily discernible point. The next most easily point seen is (2,8) so we will use the slope equation to find the slope. The equation is more or less like y2-y1  over x2-x1.

The y2 and x2 would be the (2,8) point because that is the second point on the line we are using. The x1 and y1 would be the first point (0,4). Now we will fill in the equation, which will look like 8-4  over 2-0  which will be 4 over 2, simplified to 4/2 and 2/1, being equal to 2.

The slope/m will be equal to 2, so the equation will look like

y=2x+4

Hope this helps!

Answer:

14.86606875 or

[tex] \sqrt{221} [/tex]

Step-by-step explanation:

[tex] {5}^{2} + {14}^{2} = 221[/tex]

[tex] \sqrt{221} [/tex]

use the pythagorean theorem

Answer:

7 times p =   7p

Step-by-step explanation:

The algebraic expression of 7 times p is 7p.

An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.

Example: 2 + 3x + 4y = 7 is an expression.

We have,

7 times p.

This can be written as,

= 7p

Thus,

The expression is 7p.

Learn more about expressions here:

https://brainly.com/question/3118662

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Answers:

================================================

Explanation:

a = 137/2 = 68.5

I'm using the inscribed angle theorem. This says that the inscribed angle is half that of the arc it cuts off.

-------------------

b = 90 since any inscribed angle of a semicircle is always 90 degrees (Thales Theorem). This is a useful way to create right angles if all you have are a straight edge and compass.

--------------------

Note how the arcs c and 137 form a 180 degree semicircle, which means,

c+137 = 180

c = 180-137

c = 43

Answer:

Step-by-step explanation:

Direct variation:

[tex]\dfrac{y}{x}=constant[/tex]

Inverse variation:

[tex]xy=constant[/tex]

We have

[tex]\dfrac{y}{1}=\dfrac{36}{x}[/tex]

cross multiply

[tex]xy=36[/tex]

it's an inverse variation

Answer:

1/4 or 0.25

Step-by-step explanation:

Find the common denominator to fill in the first 2 blanks.

1/2 = 2/4

1/4 = 1/4

2/4 - 1/4 = 1/4 or 0.25

Answer:

6

Step-by-step explanation:

If she has 30 inches and each bow takes 5 inches then

30/5 = 6

Gabriella makes 6 bows

Answer:

4n+9

Step-by-step explanation:

Answer:

(iii) C = {0}.

iv) The set of all triangles having four sides is a NULL ser

Step-by-step explanation:

Complete question

Identify the following sets as null set or singleton set.

(i) A = {x : x ∈N, 1 < x < 2}

(ii) B = The set of all even natural numbers which are not divisible by 2

(iii) C = {0}.

(iv) D = The set of all triangles having four sides.

A null set is a set that contains no element while a singleton set is. a set that has only one element

The set C ={0} has just one element which is zero. This shows that the set is a singleton set

Also a triangle only has 3sides. No triangle can have 4sides. Hence the set of all triangles having four sides is a NULL SET

Answer:

x=9/23 and y=18/23

Step-by-step explanation:

Substitute 2 x for y in 25x−y=9

25x−y=9

25x−2x=9

23x=9

23x/23=9/23

x=9/23

substitute 9/23 for x in y=2x

y=2x

y=2(9/23)

y=18/23

x= 9/23 and y=18/23

Answer: 9. triangles measure to 180 degrees

10.  90 degrees

11. 180 degrees

12. angles that measure to 90 degrees

13. angles that measure to 180 degrees

14. 148 degrees

15. 68 degrees

1. a fraction that uses the longest length on a shape

2. 0.3125

3. 0.33333333333

4. 30

5. 0.25

6. 60

7. 15

8. 18

Step-by-step explanation:

plz mark me brainliest

Answer:

80

Step-by-step explanation:

Answer:

Let x be how much more money Jose needs to save.

135 + x = 499

x = 364

Jose needs to save 364 more dollars.

Let me know if this helps!

Answer:

364*

Step-by-step explanation:

499-135=314

364+ 135=499

I put 449 instead of 499 so now i feel foolish. But that's okayy.

Answer:

10/3 ..don't trust I might be wrong

cAnswer: its c

Step-by-step explanation:

Answer:

y = [tex]\frac{1}{3}[/tex]x + 1 [tex]\frac{1}{3}[/tex]

Step-by-step explanation:

y = -3x - 1

1. Perpendicular line needs the opposite (reciprocal) of the slope.

             reciprocal of -3 is -1/3, slope 1/3.                    y = 1/3x + b

2. Now find the b (y-intercept).                                     1 = 1/3(-1) + b

                                                                                       1 = -1/3 + b

                                                                                 + 1/3  +1/3

                                                                                    1 1/3 = b

3. Answer         y = [tex]\frac{1}{3}[/tex]x + 1 [tex]\frac{1}{3}[/tex]

Answer:

Step-by-step explanation:

the local maxmium of the place defines on its own

Answer:

It's D

Step-by-step explanation:

When you add the 19-50 and over 50 then you get the highest answer

Answer:

18.84 feet is the right answer

Answer:

18.84 feet

Step-by-step explanation:

The formula for the circumference of the circle is ...

Circumference = πd

(where d is the diameter of the circle)

Therefore the circumference of this circle is equal to...

Circumference = πd

Circumference = (3.14)(6)

Circumference ≅ 18.84 feet

Answer:

The answer is 8x - 9

Step-by-step explanation:

3x + 5x - 2 - 7

8x - 9

Answer:

f=5 and f=0

I substituted wrongly at first but i now i am sure i got it right

brainliest please

Answer:

0 < x < 4.1, all in feet

Step-by-step explanation:

The 3rd side cant be zero but it must be shorter than the other two sides added together, or it wont make a triangle

0 < x < (3.1 + 1)

0 < x < 4.1, all in feet

Answer:

yes jdjdjdkdjjdjdjdjdjdndndndjd am so sorry

Step-by-step explanation:

Answer:

6x

Step-by-step explanation:

thats the real answer bro

Answer:

It’s 5,41

Step-by-step explanation: