Answer:
-6.3
Step-by-step explanation:
Answer:
not similar
Step-by-step explanation:
32/26 = 16/13
18/12 = 3/2
16/13 is not equal to 3/2, so the rectangles are not similar.
Answer:
10.6 cm to the nearest tenth.
Step-by-step explanation:
If we let one side = x. So as each side of a square are equal, and using Pythagoras we have:
x^2 + x^2 = 15^2
2x^2 = 225
x^2 = 112.5
x = √112.5
x = 10.61.
You have to get rid of 1/2 by multiplying it by its recriprocal which is like this:
1) 1/2 x 2/1 which equals to zero and you do the same to the other side.
2) -12 x 2/1 = -24x then multiply-24x with 7 which equals -168.
16-x= -24x -168
3) subtract 16 to the other side and subtract 24x with x
23x= -184
4) divide by 23 to isolate x and you get -8
5) x=-8