Answer: The first one and the third one
Step-by-step explanation:
The first one because a+c would equal the same as b+c due to the fact that a and b are equal. The second one would be because when solving for w+2=7 then you would subtract 2 from both sides and get 5 and the second one states after being simplified that w=5
Corresponding sides have the same ratio, so
x/15 = 12/(12+8) = 3/5
x = 15*3/5
x = 9
X - 4 = y^2
Since you want y to the first power you have to take the square root of y^2.
If you take the square root of the right side you also must take the square root of the left side.
+ - sqrt (x-4) = y
y = sqrt (x - 4)
and y = - sqrt (x - 4)
Answer:
-2
Step-by-step explanation:
3-5 = -2
3-> a
5 -> b
A=A1+A2+A3+A4
A1 (the base)=5×15/2=37.5
A2=A3 (the sides)
A2=15×9/2=67.5
A4=17×15/2=127.5
A=37.5+67.5×2+127.5
A=300
