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
shtirl [24]
3 years ago
13

Will give the BRAINLESTPlease help and show your work. Thank you.​

Mathematics
1 answer:
Neko [114]3 years ago
6 0

Answer:

C. A = 150

Step-by-step explanation:

A + 3x = 180

A = 9x + 60

9x+60+3x = 180

12x = 120

x = 10

A+3(10) = 180

A +30 = 180

A  = 150

You might be interested in
Which relationship describes angles 1 and 2?
11Alexandr11 [23.1K]

the relationship between the two angles is that they are supplementary angles because together they create a line that is 180 degrees. I might be wrong so please don't get mad if I am. I am 90 percent sure this is the answer though

7 0
4 years ago
Sin^22x - 2cos2x + 2=0
zhuklara [117]

Answer:

x=πn, n∈Z

Step-by-step explanation:

if sin²2x=1-cos²2x, then

1-cos²2x-2cos2x+2=0; ⇒ cos²2x+2cos2x-3=0; ⇔ (cos2x+3)(cos2x-1)=0;

\left[\begin{array}{cc}cos2x+3=0\\cos2x-1=0\\\end{array} \  \ \left[\begin{array}{cc}x \ 'does-not-exist'\\cos2x=1\\\end{array} \  \ 2x=2\pi n, n=Z \  x=\pi n, n=Z

5 0
3 years ago
Solve for all values of x by factoring.<br> X^2 +2x-36=2x
steposvetlana [31]

Answer: 26 and 2

Step-by-step explanation: because it makes sense

4 0
3 years ago
Eitan is on a train heading west into the city while Dmitri is on a train on the adjacent track heading east, away from the city
ioda
The time when the two trains reach each other is 1.25 hours
The trains are 68.75 away from the city when they reach each other.
3 0
4 years ago
Read 2 more answers
What is the slope?
Andrei [34K]
Select any two coordinates from the graph such as (7,4) and (9,7). The formula of slope is rise/run or y2-y1/x2-x1
(4-7/(7-9)=(-3)/(-2)= 1.5
The slope of the graph is 1.5!
6 0
4 years ago
Other questions:
  • The perimeter of a particliar rectangle is 24 inches.if the length and width are positive integers,how many disinct areas could
    14·2 answers
  • Please help find the rate?
    9·1 answer
  • For what value(s) of x does the graph of g(x) = x+10/x^3+5x^2-50x have a hole?
    7·2 answers
  • Which number added to 38 will result in a sum of 0?
    13·2 answers
  • The inverse of the function f(x)=<br><img src="https://tex.z-dn.net/?f=%20%5Csqrt%7Bx%20%2B%203%7D%20%20%2B%202" id="TexFormula1
    9·1 answer
  • Help me with this problem pls
    15·1 answer
  • What is 5-4 in the quadratic
    5·1 answer
  • Y - (-9) = 8?<br><br> I am confused
    8·2 answers
  • Bobby and Petra are running a lemonade stand and they charge 45 cents for each glass of lemonade. To break even they must make $
    14·1 answer
  • A bag contains 9 marbles: 5 are green, 2 are red, and 2 are blue.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!