Answer:
x=3
Step-by-step explanation:
We have to use the fact that all angles of a triangle add up to 180 and two supplementary angles add up to 180.
First,QRS forms a line, so angle QRT and angle TRS add up to 180 or, if we call angle TRS y for the sake of having it as a variable, 45x+y=180 or y=180-45x
Now we have all three angles of the triangle, and we know all three add up to 180, so startign with our newly found angle, (180-45x)+(25x)+(57+x)=180
180-45x+25x+57+x=180
237 - 19x = 180
57 = 19x
x=3
Let me know if you need any further explanation.
Answer:
Step-by-step explanation:
<h3>First let's write our equation</h3><h3 /><h3>
</h3><h3 /><h3>Reduce</h3>
<em>Definition - </em><em>reduction refers to the rewriting of an expression into a simpler form</em>
<h3 />
We can reduce 
to 
Our equation is now 
Now we can cross multiply
<em>Definition - </em><em>given an equation between two fractions or rational expressions, one can cross-multiply to simplify the equation or determine the value of a variable.</em>
<h3>Add</h3>
We are adding because we want our variable to be on one side of the equation
<h3>To check we can show our equation but instead of d we have 18</h3><h3 />
Subtract and we get
Which makes it true
<h3><em>Have a good day!</em></h3>
Answer: x=4 y=14 z=4
Step-by-step explanation:
On edge it is that
Answer:
A-square
Step-by-step explanation:
The formula for the surface area of a cube is:
SA = 6a²
where a is the length of the cube
Answer:
False
Step-by-step explanation:
a linear function is always in the form y=(f)x=bx+a
That means that there will not be one set answer and the line can be graphed. Your question is an equation, but not a linear one because there is only one set answer which would be 17/2=8.5.
