-12 would be it because 2 negatives make a positive so -11+23 is -12
The triangles are similar. Set the two triangle's measurements equal to each other
8/10 = (x - 1)/(x + 2)
Cross multiply
8(x+ 2) = 10(x - 1)
Distribute the numbers
8(x) = 8x
8(2) = 16
10(x) = 10x
10(-1) = -10
8x + 16 = 10x - 10
Isolate the x. Subtract 16 from both sides, and 10x from both sides
8x (-10x) + 16 (-16) = 10x (-10x) - 10 (-16)
8x - 10x = -10 - 16
Simplify. Combine like terms
-2x = -26
Isolate the x. Divide -2 from both sides
-2x/-2 = -26/-2
x = -26/-2
x = 13
13 is your answer for x
hope this helps
Answer:
So, you probably want to get a ruler to make sure there a 10-cm side and a 6-cm side. You will also need a protractor to make an exact 60-degree angle between the sides.
Step-by-step explanation:
It should look something like this.
Note: this parallelogram is not drawn to scale. In other words, this parallelogram does not have the exact angles and side measure. (It just an example)
Answer: Divide both sides by the numeric factor on the left side, then solve.
Exact Form: x= −83/2
+-(1,7)/+-(1,3,9) are the combinations of f(x)
