AB= 3x+4 + 5x-6 = 8x-2
the others are just what they are given as
Answer:
-82
Step-by-step explanation:
-18 - 64
-82
Answer: -82
Step-by-step explanation:
For writing the expression, represent 'a number' as x, as it's unknown.
<u>The word format explains;</u>
Four less than x.
Subtracting 4 from x will represent four less than x.
<u>Expression is represented as;</u>

Answer:
centre = (3, 9 )
Step-by-step explanation:
the equation of a circle in standard form is
(x - h)² + (y - k)² = r²
where (h, k) are the coordinates of the centre and r is the radius
(x - 3)² + (y - 9)² = 16 is in this form
with centre = (3, 9) and r =
= 4