+8 means that it is a positive number
-8 means that it is a negative number
I think what you mean by: {8}, is |8| which is absolute value which means no matter the answer it is the absolute value from 0 so it’s always +
Answer:
∆ABC=∆ADE ............by AA test of similarity
CAB=EAB....................COMMON ANGLE
CBA=EDA....................EACH 90°
AB/AD =CB/ED.........CSST
9/6=3/x
3/2=3/x
x=2 x 3/3
<h2>x=2 </h2>
She didn’t multiply -1/4 by 12 in order to get -1/4x + 3 = -1
which would change her answer, because then you have to subtract 3 from -1 and get -4. Then divide -1/4 & get 16. It changed to positive because of the division & multiplication rule with two negative numbers.
Hope this helps.
16 - (24) + (-8 + 6) - (-12 + 4) =
-8 + (-8 + 6) - (-12 + 4) =
-8 + (-2) - (-12 + 4) =
-10 - (-12 + 4) =
-10 - (-8) =
-10 + 8 =
-2
Hope this helps!
System of equations:
w=(3/2)*h (1)
w*h=54 area (2)
w=54/h substitute into (1)
54/h=3h/2
3h²=54*2
h²= 36 (we take only positive solution)
h = √36=6
h=6 in.
w=(3/2)*h=(3/2)*6= 9
w=9 in.
correct answer is D
