Answer:
0
Step-by-step explanation:
-0.75-20+71/2+13.25
-0.75-20+15/2+13.25
-7.5+15/2
-15/2+15/2
=0
Answer:
500
Step-by-step explanation:
510=x+.21x-.19x
510=(1+.21-.19)X
510=1.02X
X=510/1.02
X=500
It is D because every time there is a box in the corner it's a right angle and they are always 90°
Answer:
(x + y)² = 25
Step-by-step explanation:
The expansion of (x + y)² is
(x + y)² = x² + y² + 2xy ← substitute x² + y² = 15 and xy = 5
= 15 + 2(5)
= 15 + 10
= 25
Answer:
+112 +11v
Step-by-step explanation:
-7(-10-6)+1v+10v =
(-10-6) = -16
-7(-16) +1v +10v =
+112 +1v +10v =
+112 +11v
