Mathematics High School

(ii) Explain why a+b+c= 235°
This is a cornet maths question. How do I solve it

Answers

Answer 1

Answer:

Where is the image?

Step-by-step explanation:

Tell me in comments

Answer 2

The equation a + b + c = 235 is true because a = c = 55° and b = 125°

How to prove that a + b + c = 235?

The angle a and 125° are on the same straight line.

So, we have:

a + 125° = 180°

Subtract 125 from both sides

a = 55°

The angle b and 125° are vertical angles

So, we have:

b = 125°

The angle a and angle a are vertical angles

So, we have:

c = a

This gives

c = 55°

Add the three angles

a + b + c = 55° + 125° + 55°

Evaluate the sum

a + b + c = 235°

Hence, it is true that a + b + c = 235°

Read more about vertical angles at:

https://brainly.com/question/14362353

Related Questions

what is the answer to∠X≅∠X

Answers

Answer: ∠A ≅ ∠A; reflexive property

Step-by-step explanation: found it online :)

x-5+x-11=100 what is the reason for this statement for geometry?​

Answers

Answer:

because when the value of x is replaced in the factorisation it Will be equivalent to 100

Math need help one question

Answers

Answer: Multiply the second equation by -2

Explanation:

The elimination method requires you to set one variable in an equation to be the opposite of that variable in another equation.  As such, due to the presence of 2x in the top equation, you need -2x in the bottom.  Then, simply add the equations to get the answer.

Hope it helps :)

linear equations assignment:
Paula has $10 and earns 50 cents for every lap she runs for her schools fundraiser. Jackie has $15 and earns 25 cents for every lap she runs. After how many laps will Paula have more money than Jackie?

Answers

Answer:

20 laps

Step-by-step explanation:

2 times = +1 dollars for Paula, +0.50 dollars for Jacki

Try multiplying it the least amount of times to Paula can have more and so 20 times and Paula will have 20 dollar sand Jacki will have 19.75, therefore she needs to do 20 laps.

In the figure, s//t Find the m\1
will give brainliest ​

Answers

The answer is 115 degrees

Solve for X Please show your work.
(x+3)/(x^2-9)=(2x+7)/(x^2+2x-15)

Thank you

Answers

The answer is X=-2, explanation in the picture.

Two cyclists begin from the same point and are traveling in opposite directions on a circular bike trail that is 5 miles long. Once cyclist travels at 12 miles per hour, and the other travels at a rate of 18 miles per hour. How far did cyclist A travel?

Answers

Answer:

three cytliys and six ka

Step-by-step explanation:

hope it hlp you

Halp meh ples friends :D​

Answers

Answer: I gotchu it’s

9 and 1/5

Step-by-step explanation:

The ratio of men to women working for a company is 2/3. If ther are 105 employees total, how many women workfor the company

Answers

Answer: There are 70 women and 35 men.

Step-by-step explanation:

105 divided by 3 is 35 and 105 - 35 is 80.

2. Deon wants to find the perimeter of a square with side length 6m - 3. Write two expressions that represent the perimeter, including one expression in simplest form. Perimeter of a square- p = 4(s) or p = s + s + s + s​

Answers

Step-by-step explanation:

The perimeter of the given square is: a + a + a + a = 4 a units. Hence, the formula of the perimeter of a square = 4 × (length of any one side).

The expressions that represent the perimeter of the square are  p = 4(6m-3) and p = 24m - 12. And p = 24m - 12 is the simplest form of the expression.

What is perimeter?

A closed shape's perimeter is the sum of the lengths of its outside boundaries. The lengths of all the sides are added to determine the measurement.

Given:

The side of the square is 6m-3 unit.

And all the sides of the squares are equal.

And the perimeter p of the square is,

= the sum of all the sides.

p = 4 x one side.

p = 4(6m-3)

The above expression represents the perimeter of the given square.

Simplifying,

p = 24m - 12

This is the simplest form of the expression.

Therefore, the required expression are p = 4(6m-3) and p = 24m - 12.

To learn more about the perimeter of a shape:

https://brainly.com/question/28161250

#SPJ2

What is the value of x

Answers

Answer:

23. because there is a 90 degree angle and then the 67 degree angle, and triangle law says that all angles add up to 180.

Step-by-step explanation:

Im not smart but hope this helps

Help ASAP I’m lost on this question

Answers

Answer: did u get it right

Step-by-step explanation:

Answer:

Step-by-step explanation:

2x ÷ (6x² -10x) and

[tex]\dfrac{2x}{6x^{2}-10x}[/tex]

Help please thank you!

Answers

Answer:

g(f(x)) = x

Yes, the functions are inverses.

Step-by-step explanation:

Hi there!

We're given:

[tex]f(x) = 8x-7[/tex]

[tex]g(x)=\displaystyle\frac{x+7}{8}[/tex]

To solve for g(f(x)), plug f(x) into g(x) as x:

[tex]g(f(x))=\displaystyle\frac{(8x-7)+7}{8}\\\\g(f(x))=\displaystyle\frac{8x-7+7}{8}\\\\g(f(x))=\displaystyle\frac{8x}{8}\\\\g(f(x))=x[/tex]

Because g(f(x)) = x, the two functions are inverses.

I hope this helps!

Please help me with help please please 6 to 9 please

Answers

Answer with Step-by-step explanation:

$20.04-$16.44

$3.6

7. 6*$11.99=$71.4

24*$15.99=$383.76

30*$17.29=$518.7

8.

110.13 Canadian dollars

9.

a.36*$25.99

$935.64

b.$699+$935.64

$1634.64

c.No hidden fee

how to find the distance between the two parallel lines: y=2x-3 and y= 2x+7

Answers

Answer:

Distance is 10

Step-by-step explanation:

distance between y1=2x-3 and y2= 2x+7

y2 - y1 = (2x +7) - (2x - 3) = 10

Answer:

10

Step-by-step explanation:

.

.

.......... ......

How many solutions does the following system of equations have?
{4x + 6y = 24
2x + 3y = 12

Answers

Answer:

Infinitely many solutions

Step-by-step explanation:

Note that 2(2x+3y=12) is 4x+6y=24, which is the first equation. Therefore, by canceling the equations out, you have 0=0, which means whatever one side equals, the other side ALWAYS equals that.

-8(5n - 2) - (n + 3) = 54

Answers

1. Distribute the -8 to 5n and -2 by multiplying.
2. Your problem should now look like this: -40n+ 16 -(n+3)= 54
3. Next distribute the negative to (n+3).
4. After doing that the problem should look like this: -40n + 16 -n -3= 54
5. Combine like terms to get the problem to look like this: -41n + 13=54
6. Subtract 13 from both sides.
7. Now you are left with -41n=41
8. Divide by -41 to both sides.
9. Your answer should be n=-1

Find the missing side of each triangle. Leave your answer in simplest radical form.
(Please show ur work)

Answers

Answer:

[tex]x = 2\sqrt{55}[/tex]  

Step-by-step explanation:

Given the values for the leg and hypotenuse:

a (leg) = 6 cm

c (hypotenuse) = 16 cm

Use the Pythagorean Theorem to find the value of the other leg, x:

[tex]x = \sqrt{c^{2} - a^{2} }[/tex]

[tex]x = \sqrt{16^{2} - 6^{2} }[/tex]

[tex]x = 2\sqrt{55}[/tex]  

Answer:

Your answer is [tex]\sqrt{220}[/tex] or 14.8323969...

Step-by-step explanation:

[tex]A^{2} +B^{2} =C^{2} \\x^{2} + 6^{2} =16^{2}[/tex]

[tex]x^{2} =16^{2} -6^{2} \\[/tex]

[tex]x^{2}[/tex] = 256 - 36

x = [tex]\sqrt{220}[/tex]

A store is having a sale where all shoes are discounted by 25%. Diego has a coupon for $2 off of the regular price for one pair of shoes. The store first applies the coupon and then takes 25% off of the reduced price. If Diego pays $24.38 for a pair of shoes, what was the original price before the sale and without the coupon?



H e l p

Answers

Answer:

28.47

Step-by-step explanation:

Jenna had $180.47 in her checking account. She bought groceries for $75.11 and gas for $29.64. How far below $100 is her checking account now?

$80.47
$4.74
$24.28
$75.72

Answers

Answer:

75.72

Step-by-step explanation:

please help me or I'm gonna fail math​

Answers

Answer:

Step-by-step explanation:

as said in my comment

A: (3x-2)X(x+1)

B: substitute 3 in(if m=meters),

(3x3-2)

9-2

7X(x+1)

3+1

4

7X4

28

Answer:

a) 3x^2 + x - 2

b) 28m

Step-by-step explanation:

a) Since the Area for a normal square is b*l (base x length)

Do the same with this (Using FOIL ig)

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

3x^2 + 3x - 2x - 2

3x^2 + x - 2

b) Since it's asking us to find out what the number will be while x = 3m, just substitute 3 for every "x" in the answer we got for a

3(3)^2 + (3) - 2

3(9) + (3) - 2

27 + 3 - 2

30 - 2

28m

Therefore the actual area of this rectangle is 28m

help me please
i need it

Answers

Answer:

5

Step-by-step explanation:

read your book so that you can know your book

The answer to your question is 5

Pls help me with this question!!!! Will mark the best answer brainliest!!!

Answers

I think G (6,0) is the best answer. Hope this helps, sorry if it’s wrong.

Find the Value of X given the following

Answers

Answer:

10

Step-by-step explanation:

2(x+9)+142=180       corresponding angles are equal and angles on a straight line=180

2(x+9)=180-142

x+9=38/2

x=19-9

x=10

abc is a right angled triangle.
ac=14cm
angle c=90 degrees.
size of angle b:size of angle a=3:2
work out the length of ab

Answers

Answer:

67

Step-by-step explanation:

helppppppppppppppppppppppppppppppppppppppp

Answers

Answer:

Step-by-step explanation:

Which equation represents a proportional relationship?
A. 1/4x + y = 10
B. y = 1/4x
C. y = 1/3x + 1

Answers

B. y = 1/4x

The equation has no y intercept so the line goes through the origin and it’s saying that as x increases by 1/4, y increases by 1

Enter the value of x. The diagram is not to scale.
680
119°
.70

Answers

Answer:

51°

Step-by-step explanation:

We know that all angles in a triangle add up to 180°

We have one of them, 68° for now.

We also know the angle on the outside of the triangle that forms with one side being extended. That side is a straight line (180°)

Which means the interior angle there would be 180-119 = 61°

This means that we have 2 out of 3 angles now. Now we just add them up and subtract them from 180°.

180° - (68+61) = 51° is our final answer.

Let me know if that makes sense, or if you have any other questions.

Hope I helped! :)

rectangle QRST with vertices Q(-6,-1), R(-3,1), S(1,-5), and T(-2,-7)

Answers

Answer:

7 916 34902883837373u2728

_____13. Public opinion polls are only estimates because (A) random digit dialing has replaced person-to-person interviewing. (B) all surveys have a sampling error. (D) samples of fewer than one million people are too small. (E) opinion polls have been deemed ineffective by political candidates.

Answers

Answer:

(B) all surveys have a sampling error.

Step-by-step explanation:

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