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Sidana [21]
2 years ago
10

My teacher refuses to teach me please help..

Mathematics
1 answer:
alekssr [168]2 years ago
5 0

Answer: x=30

Step-by-step explanation:

The sum of the angles must be 360.

4x+3x+3x+2x = 12x

12x = 360

x =360/12 = 30

You might be interested in
7x(x+1.8)=0<br> 7x(x+1.8)=0<br> 7x(x+1.8)=0 <br> Answer those 3
ahrayia [7]

Answer:

The answer to all of those questions would be x=-1.8

Step-by-step explanation:

7x(x + 1.8) = 0 - Distribute through the Parenthesis -

7x^2 + 12.6x = 0

x(7x + 12.6) = 0


x = 0


7x + 12.6 = 0

7x = -12.6

x = -12.6/7

x = -1.8


so x = 0 or x = -1.8

3 0
2 years ago
Tobeg says the equation 3x + 2y= 270 and y=4/5x + 20 intersect at the point (50,60) is this true how do you know
il63 [147K]

ANSWER

Yes it is very true


<u>EXPLANATION</u>

If the two equations intersect at (50,60) then this point must satisfy the two equations.


3x+2y=270---(1)

We substitute  (50,60)  in to erquation (1)


3(50)+2(60)=270


150+120=270

270=270




y=\frac{4}{5}x+20 ---(2)


We now substitute  (50,60)  in to erquation (2) also


60=\frac{4}{5}(50)+20


60=40+20


60=60


Since the point satisfy all the two equations, it is true that they intersect at (60,50)




3 0
3 years ago
A company makes video games. The price of a video game is modeled by the function p(x) = 30x + 2, where x is the number of years
atroni [7]

The answer is option C "multiplication." You have the function p(x) = 30x + 2 and x equals the number of years since the company started producing games which has this equation also s(x) = 500x + 250 in order to find the revenue from their video games the company should use the multiplication on the polynomials.

Hope this helps!


4 0
3 years ago
Read 2 more answers
How many solutions does the nonlinear system of equations graphed below have?
Artemon [7]
I think its 4 because the lines intersect 4 times but its been too long since ive done nonlinear equations
4 0
3 years ago
Read 2 more answers
Is this how you set up my equation?
muminat
Looks correct. :)...........
8 0
3 years ago
Read 2 more answers
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