Answer:
25
Step-by-step explanation:
The longest side is 12.
The two other sides of the triangle=
=(9+36)square rooted=45 square rooted is about 6.7.
6.7*2=13.4
13.4+12=25.4
25.4 rounded to the nearest unit is 25.
first add 25 and 5 and divide 960 by 30
Answer:
Step-by-step explanation:
When x<-2, f(x)=5
When -2<x<3, f(x)=2x+2
When x>3, f(x)=-3
4x-2y=10
7x+2y=23
First, we can solve one of the problems in order to come up with an expression to represent y.
-2y=4x+10
y=-2x-5
Now that we have our y value, we can plug it in to the other equation.
7x+2(2x-5)=23
7x+4x-10=23
11x=33
x=3
There's your x value, 3. I am going to solve for y as well just so that you can see how to check your work.
We can plug our x value into the other equation now to find y.
4(3)-2y=10
12-2y=10
-2y=-2
y=1
Would you look at that? We have both the x and y values. Now we can just plug them in to either equation.
7(3)+2(1)=23
21+2=23
23=23
23 indeed equals 23, therefore proving that both variables are correct. There you go!
