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dexar [7]
3 years ago
9

I need help I don't really understand​

Mathematics
2 answers:
kicyunya [14]3 years ago
3 0
The sum of all has to equal 180 so solve: (x+10)+(3x-5)+x=180
5x+5=180
5x=175
x=35
hope this helps
gogolik [260]3 years ago
3 0

Answer:

<em>x</em> = 35°

Step-by-step explanation:

Here is my work :) did it on paper so sorry it's low quality.

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A building across the street casts a shadow that is 24 feet long. your friend is 6 feet tall and casts a shadow that is 4 feet l
julsineya [31]
I think the answer would be 12
3 0
3 years ago
The first three steps in determining the solution set of the system of equations, y = –x2 – 2x + 8 and y = 2x + 11, algebraicall
shutvik [7]
First step
Using substitution you can fill 2x + 11 in for the y part of the first equation
This will look like: 2x + 11 = -x^2 -2x + 8

Second step
Now we need to solve for the variable by combining like terms you can start by adding x^2 + 2x -8 to both sides
You get 0 = x^2 +4x +3

Third step
Factor
(X+3)(x+1)=0

If you need the y values you can fill in x= -3 to the second equation y= 2(-3) + 11 and y=5
First point is (-3,5)

The other point is found by filling x=-1 into the second equation: y= 2(-1) +11 and y = 9
Second point is (-1,9)
5 0
3 years ago
M is the midpoint of AB. If the coordinates of A are (-1,5), and the coordinates of M are (3,3), what are the coordinates of B?
borishaifa [10]

Answer:

B = (5, 1).

Step-by-step explanation:

From the formula for the midpoint of  a line :-

(-1 + x)/2 , (5 + y)/2 = (6/2, 6/2)    where x and y are the coordinates of B.

so (-1 + x)/2 = 6/2

-1 + x = 6

x = 5.

and (5 + y)/2 = 6/2

5 +  y = 6

y =  1.

4 0
2 years ago
The graph of function g(x) is a transformation of the graph of function f(x) = x2.g(x) =
mariarad [96]

Given:

The graph of function g(x) is a transformation of the graph of function f(x) = x²

As shown: the graph of g(x) is open down

So, we will reflect f(x) over the x-axis, the function will be ⇒ -x²

And there is horizontal compression so, the factor of compression will be > 1

So, the function will be ⇒ -2x²

Finally, there is a vertical shift down 3 units

So,

g(x)=-2x^2-3

6 0
1 year ago
Que porcientos es 200 de 600
kumpel [21]
   
\displaystyle  \\ &#10; \frac{200}{600} =   \frac{2}{6} =  \frac{1}{3} = 0,(3) =  \frac{33,(3)}{100} = \boxed{33,(3)\%}



8 0
3 years ago
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