1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
pochemuha
3 years ago
8

I really need help. Someone please help me with this.

Mathematics
1 answer:
9966 [12]3 years ago
7 0

Answer:

  angles 1, 3, 6, 8 = 142°

  angles 2, 4, 5, 7 = 38°

Step-by-step explanation:

Vertical angles and corresponding angles are congruent, as are alternate interior angles. Hence the angles 1, 3, 6, 8 are all congruent:

  ∠1 = ∠3 = ∠6 = ∠8 = 142°

Each of the remaining angles forms a linear pair with one or another of those, so is its supplement:

  ∠2 = ∠4 = ∠5 = ∠7 = 180° -142° = 38°

You might be interested in
a fastest man in the world can run 100 meters in 9 seconds. how far can he run in 1 minute and 2 seconds
STALIN [3.7K]

Answer:

650-700 meters

Step-by-step explanation:

8 0
2 years ago
Find the area of the shape.
Anna35 [415]

Answer:  12.56 / 4 = 3.1416 =9.4248

Step-by-step explanation: pi by the 2 squared gives u the area of all the circle but u need to fin 3/4 of the circle so divide by 4 and the result of the dividion x 3 gives u the answer

5 0
3 years ago
Ng ne Volume of a Cone
AnnyKZ [126]
Answer: height = 6, radius = 8, Volume = 401.92

Explanation:
Height = 6 given

Find radius:

Use Pythagorean’s theorem to find the side of the right triangle:

a^2 + b^2 = c^2
b^2 = c^2 - a^2
b^2 = 10^2 - 6^2
b^2 = 100-36
b^2 = 64
b = 8

And since length b is also the radius of the circle then radius = 8

Find volume:

V = pi x r^2 x h/3

V = 3.14 x 8^2 x 6/3

V = 3.14 x 64 x 2

V = 401.92
6 0
3 years ago
Given that x and y are positive integers, solve the equation x² - 4y² = 13​
zvonat [6]
<h3>Answer:  x = 7 and y = 3</h3>

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

Explanation:

Apply the difference of squares rule

x² - 4y² = 13

x² - (2y)² = 13

(x - 2y)(x + 2y) = 13

Since x and y are positive integers, this means x-2y and x+2y are both integers as well.

The value 13 is prime. Its only factors are 1 and 13

Since the above equation shows 13 factoring into x-2y and x+2y, then we have two cases:

  • A) x-2y = 1 and x+2y = 13
  • B) x-2y = 13 and x+2y = 1

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

Let's consider case A

We have this system of equations

\begin{cases}x-2y = 1\\x+2y = 13\end{cases}

Add the equations straight down

  • x+x becomes 2x
  • -2y+2y becomes 0y = 0 which goes away
  • 1+13 becomes 14

Therefore we have 2x = 14 solve to x = 7

From here, plug this into either equation to solve for y

x-2y = 1

7 - 2y = 1

-2y = 1-7

-2y = -6

y = -6/(-2)

y = 3

You should get the same result if you used x+2y = 13

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

Since we've found that x = 7 and y = 3, notice how case B is not possible

Example:  x-2y = 13 becomes 7-2(3) = 13 which is false.

Also, x+2y = 1 would turn into 7+2(3) = 1 which is also false.

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

Let's check those x and y values in the original equation

x² - 4y² = 13

7² - 4*(3)² = 13

49 - 4(9) = 13

49 - 36 = 13

13 = 13

The answer is confirmed.

4 0
2 years ago
PLSS HELPP 25 POINTS AND BRAINLIEST
PilotLPTM [1.2K]

Answer:

I believe it would be 3 meters...

dont kill me if im wrong!

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Other questions:
  • you plan to take a 1133​-mile trip in your​ car, which averages 22 miles per gallon. How many gallons of gasoline should you exp
    6·1 answer
  • The support for a window air conditioning unit forms a triangle and an exterior angle. What is the measure
    10·2 answers
  • Which objects may have a mass greater than 300 grams
    14·1 answer
  • Write an equation that represents the line. <br> *Use exact numbers*
    5·1 answer
  • A gardener spread 6 3/4 bags of mulch evenly over her 3 equal-sized vegetable beds. How
    13·1 answer
  • Question 1 A=lw for l=6, w=12 A=?<br><br><br> question 2 d=rt for r=25, t=11 D=?
    8·1 answer
  • Find the area of the shaded region 6cm 6cm
    14·1 answer
  • 5x + 2 – 2(x - 1) = 3x + 4<br> PLS HELP !
    10·1 answer
  • What inequality does this number line show?
    15·1 answer
  • Are the two triangles similar? If so, state the reason and the similarity statement.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!