It actually depdens on which one you set for x and y
let's say that x=number of televisions sold
y=number of copmuter sold
72x+90y=profit
wants to make at least 360
72x+90y≥360
graph
one way is to find the x and y intercepts, first solve for '=' and not '≥'
x intercept, set y=0
72x=360
x=5
x intercept at (5,0)
yintercept
set x=0
90y=360
y=4
yiint at (0,4)
garph the points (5,0) and (0,4) and connect those points with aline
see witch side to graph one
is (0,0) in the solution set?
0≥360
false
it is not
shade on the side that it isn't on
we have
90x+72y≥360
that underline tells us that (0,5) and (4,0) are possible solutions
hmm
see each
the answer is A, if we do x=computers and y=TV, then D is also acceptable
answer is A
the correct question is
<span>The length of a rectangle is represented by 4a + 3b, and its width is represented by 3a-2b. Write a polynomial for the perimeter of the rectangle. What is the minimum perimeter of the rectangle if a=12 and b is a non-zero </span>whole number?
we know that
Perimeter of a rectangle=2*[length + width]
length=(4a+3b)
width=3a-2b
so
P=2*[(4a+3b)+(3a-2b)]-----> P=2*[7a+b]-----> P=14a+2b
the answer part a) is
A polynomial for the perimeter of the rectangle is P=14a+2b
Part b)
for a=12
P=14*12+2b---------> P=168+2b
<span>the minimum perimeter of the rectangle is for b=1
</span>so
P=168+2*1-----> P=170 units
the answer part b) is
the minimum perimeter of the rectangle is 170 units
You didn't specify 10 what. However, a yard is equal to 36 inches, or about 3 feet.
Answer: 1/2
There are 52 cards in a deck of cards.
There are 26 red cards in a deck of cards.
P(Red Card) = 26/52 = 1/2
Answer:
y = -4/3x - 1/3
Step-by-step explanation:
-3/2x+2y=-7
2y = 3/2x - 7
y = 3/4x - 7/2
y = -4/3x + b
5 = -4/3(-4) + b
5 = 16/3 + b
-1/3 = b