Answer:
A = 62.35 cm²
Step-by-step explanation:
Use the area formula A = 
, where a is the side length.
Plug in the values:
A = 
A = 
A = 62.35 cm²
Answer:
-4x + 12 = 20 is incorrect. she added 12 to 20 instead of subtracting 12 from both sides.
Step-by-step explanation:
It should have been, write problem
-4(x - 3) = 20
Use distributive property.
-4x + 12 = 20
subtract 12 from each side
-4x =8
divide each side by -4
x = -2
Answer:
just sub in the numbers into the equation to replace the X ..
example for
a) h(7) : 44
Step-by-step explanation:
h(7) : x^2 -5
sub in 7 into the equation to replace X
so you get
(7)^2 - 5
49-5
44
D 288 because 216/3 equals 72 times that by 4 and you get 288.
