Answer:
The answer is below
Step-by-step explanation:
Let x represent the profit made from sales and c(x) the commission based on sells. If the profit is less then $1000,they 21%, hence:
if x < 1000, c(x) = 0.21x
If the profit is less between $1000 and $1200,they 22.5%, hence:
if 1000 < x < 1200, c(x) = 0.225x
If the profit is greater than $1200,they 23.5%, hence:
if x > 1200, c(x) = 0.235x
Therefore the commission represented as a piecewise function is:
A#b = 2a(7-b)
(2#5)#3
Let us look at the parentheses first.
2#5 = 2*2(7-5)
= 4(2)
= 8
Now the equation becomes 8#3
8#3 = 2*8(7-3)
=16(4)
= 64
The value is 64. Hope this helps!
Answer:
33cm
Step-by-step explanation:
area of a rectangle= length ×width
Let x be the length
990=x( x-3)
990=x^2-3x
x^2-3x-990=0
x^2+30x-33x-990=0
x(x+30)-33(x+30)=0
(x-33)(x+30)=0
x=33, x=-30
length is positive so it'll be 33cm
4 - 3y = 31
Subtract 4 from both sides.
-3y = 31 - 4
Simplify.
-3y = 27
Divide both sides by -3.
y = 27/-3
Simplify.
y = -9
~Hope I helped!~
