Answer:
A={21,24,27,30}
B={21,27}
C={24,30}
Step-by-step explanation:
a)A U B={21,24,27,30}
b)A n C ={24,30}
Answer:
202.5cm^2
Step-by-step explanation:
P=2l+2w
63=2(9)+2w
63=18+2w
63-18=2w
45=2w
divide both sides by 2
22.5=w
check:
P=2(9)+2(22.5)
=18+45
=63
Area=l×w
=22.5×9
=202.5cm²
Answer:
i'd say about 4.0
Step-by-step explanation: looked it up
For this case we have the following equation:
p (x) = 8 + 6x-4x2
We must derive the equation to find the maximum of the function.
We have then:
p '(x) = 6-8x
We match zero:
6-8x = 0
We clear x:
8x = 6
x = 6/8
x = 3/4
x = 0.75 speakers
Answer:
should be sold 0.75 thousand boombotix speakers to maximize profit
Answer:
Step-by-step explanation:
The point-slope form of an equation of a line:
Put the coordinates of the given point:
(-2, -3); (-8, 3)