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lana66690 [7]
3 years ago
7

Use the diagram and table shown to answer the question.

Mathematics
2 answers:
Sergeu [11.5K]3 years ago
8 0

........................................ 40 ......................................

morpeh [17]3 years ago
8 0
The answer is 40 my guy
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The function f(x) = –(x – 20)(x – 100) represents a company’s monthly profit as a function of x, the number of purchase orders r
Sunny_sXe [5.5K]
F ( x ) = - ( x -20 ) ( x - 100 ) =
= - ( x² - 100 x - 20 x + 2000 )= 
- x² + 120 x - 2000
The greatest profit is when ; f´( x ) = 0
f ´ ( x ) = - 2 x + 120 = 0
2 x = 120,        x = 60
60 purchase orders will generate the greatest profit.
5 0
3 years ago
3. Convert 150 yards per minute to feet per day.
vesna_86 [32]

One day has 24 hours.

One hour has 60 minutes.

One day has 24 x 60 = 1440 minutes.

1 yard is 3 feet.

150 yards x 3 = 450 feet.

150 yards per minute = 450 feet per minute.

450 x 1440 = 648,000 feet per day.

3 0
3 years ago
Choose an equation in slope-intercept form for the line that passes through (-8,1) and is perpendicular to the y=2x-17.
N76 [4]
<span>y= -(1/2)x - 5

I think :P</span>
7 0
3 years ago
1.Graph the function y=2/x . Find the range of the function given that the domain of the function is all real numbers x, except
Ivanshal [37]
The range of the function is all real number values of y except y = 0.

Ordered pairs in the graph includes (-4, -0.5), (-2, -1), (-1, -2), (1, 2)
5 0
3 years ago
2x+5y=-3<br>3x-y=21<br>help me
arlik [135]
Problem:
Solve
2
x
+
5
y
=
−
3
;
3
x
−
y
=
21
Steps:
I will try to solve your system of equations.
3
x
−
y
=
21
;
2
x
+
5
y
=
−
3
Step: Solve
3
x
−
y
=
21
for y:
3
x
−
y
+
−
3
x
=
21
+
−
3
x
(Add -3x to both sides)
−
y
=
−
3
x
+
21
−
y
−
1
=
−
3
x
+
21
−
1
(Divide both sides by -1)
y
=
3
x
−
21
Step: Substitute
3
x
−
21
for
y
in
2
x
+
5
y
=
−
3
:
2
x
+
5
y
=
−
3
2
x
+
5
(
3
x
−
21
)
=
−
3
17
x
−
105
=
−
3
(Simplify both sides of the equation)
17
x
−
105
+
105
=
−
3
+
105
(Add 105 to both sides)
17
x
=
102
17
x
17
=
102
17
(Divide both sides by 17)
x
=
6
Step: Substitute
6
for
x
in
y
=
3
x
−
21
:
y
=
3
x
−
21
y
=
(
3
)
(
6
)
−
21
y
=
−
3
(Simplify both sides of the equation)
Answer:
y
=
−
3
and
x
=
6

7 0
3 years ago
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