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
xxTIMURxx [149]
3 years ago
12

Help pleaseeeeeeeeeeee

Mathematics
2 answers:
forsale [732]3 years ago
5 0
A straight line is 180°.

The sum of all the angles in a triangle is also 180°.

Let the missing angle be x°.

For the straight line:
x + 2x²+ 3x+ 6 = 180

x = 180 - (2x² + 3x + 6)

x = 180 - 2x² - 3x - 6

x = 174 - 2x² - 3x

For the missing angle in the triangle:
(174 - 2x² - 3x) + 8x + 3x² - 6x = 180

174 - 2x² - 3x + 8x + 3x² - 6x = 180

174 + x² - x = 180

x² - x + 174 - 180 = 0

x² - x - 6 = 0

(x + 2)(x - 3) = 0

x + 2 = 0 or x - 3 = 0
x = -2 or x = 3


The answer is x = -2 or x = 3
postnew [5]3 years ago
5 0

9514 1404 393

Answer:

  x = 3

Step-by-step explanation:

An exterior angle is equal to the sum of the remote interior angles:

  2x^2 +3x +6 = (8x) +(3x^2 -6x)

  x^2 -x -6 = 0 . . . . . . subtract the left-side expression, put in standard form

  (x -3)(x +2) = 0 . . . . .factor

The value of x is a value that makes a factor zero. These factors are zero when x=3 or x=-2. Only positive values of x will give positive angles in this geometry. The only useful solution is ...

  x = 3

You might be interested in
You have $10 to go bowling with your friends. You need to rent shoes for $4. Each game (g) costs $3. Write and solve an equation
dexar [7]

Answer:

  • The equation is: x = (y - $4) / g

Where x is the number of games you can play;

y is the amount you have

and g is the cost of each game

  • You can play only 2 games

Step-by-step explanation:

From the question, you have $10 to go bowling and you need to rent shoes for $4. Hence, after renting the shoes, you will have $10 - $4 left, that is you will have $6 left. To determine the number of games you can play, that will be the amount you have left after renting shoes divided by the cost of each game.

Let the number of games you can play be x games

and the amount you have be y

and the cost of each game be g

Hence,

x = (y - $4) / g

From the question,

y = $10

and g = $3

∴ x = ($10 - $4)/ $3

x = $6 / $3

x = 2

Hence, you can play only 2 games

6 0
3 years ago
Answer the questions below.
DedPeter [7]

Answer:

63 m

Step-by-step explanation:

Perimeter is 276, 2L + 2W = 276, so L + W = 138

L = 75

138 - 75 = W

63 m

3 0
2 years ago
How many kilograms are in 850.0 grams
mart [117]

Answer:

0.85

Step-by-step explanation:

3 0
2 years ago
Darwin borrows $3,000 at an
aksik [14]

Answer:

Interest = $600

Step-by-step explanation:

Interest = principal x rate as decimal x time

Interest = 3,000 x 0.04 x 5

Interest = 600

3 0
2 years ago
What percent of 153 is 81
Sav [38]

Answer:

Step-by-step explanation:

81/153 x/100

81•100=8,100

8,100/153

52.9

6 0
3 years ago
Read 2 more answers
Other questions:
  • An airplane flies 105 miles in 1/2 hour. how far can I fly in 1 1/2 hours at the same rate of speed?
    8·1 answer
  • Given the sides 4, 6, 12, what type of triangle is this
    5·1 answer
  • 8.235 x 10-4 = ? standard form
    5·2 answers
  • What is 5y-4(-4-7y) using Distributive property
    10·1 answer
  • Which of the following statements is true about completing a square? A. When completing the square, subtract the square of half
    5·2 answers
  • ANSWER QUICK IF POSSIBLE - I GIVE BRAINLYEST
    15·1 answer
  • PLSSSSSS HELP GIVING BRAINLIEST
    9·1 answer
  • Round your answer to the nearest hundredth.<br> 0<br> A<br> 70°<br> 4<br> B
    13·1 answer
  • A volleyball has a surface area of 1 465cm^2 Calculate the volume of five volleyballs. Round your answer to the nearest THOUSAND
    15·1 answer
  • consider the following.find formula simplify answer .Find the domain for the formula and round answer to two decimal places if n
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!