1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
UkoKoshka [18]
3 years ago
7

PLEASE HELP I HAVE 10 MINUTES LEFT

Mathematics
1 answer:
Lena [83]3 years ago
4 0

Answer:

Manufacturers has to produce 63 DVD/Blu-Ray players to achieve a minimum cost of $644

Step-by-step explanation:

The cost equation is given as:

C=0.04x^2-5x+800

This is a quadratic equation in general form, which is:

y=ax^2+bx+c

Matching, we can say:

a = 0.04

b = -5

c = 800

The minimum occurs at  x=-\frac{b}{2a}

and the minimum value would be to place that "x" value into the equation.

First, we find the minimum using values of a and b:

x=-\frac{b}{2a}=-\frac{-5}{2(0.04)}=\frac{5}{0.08}=62.5

Plugging this into original, we get:

C=0.04x^2-5x+800\\C=0.04(62.5)^2-5(62.5)+800\\C=643.75

Rounding off to nearest whole number, we can say:

Manufacturers has to produce 63 DVD/Blu-Ray players to achieve a minimum cost of $644

You might be interested in
Which sign makes the statement true? <br><br> 43/80 87%<br><br> &gt; &lt; =
hichkok12 [17]

Answer:

=

Step-by-step explanation:

4 0
2 years ago
What are the areas of the following shapes?
mars1129 [50]
The triangle is 28 cm. You multiple 7 x 8x 1/2.

the parallelogram is 50. the formula is A=bh ( area = base x height)
3 0
3 years ago
How do you solve this equation?
Travka [436]
Exponentail thingies

easy, look at all them them, see that they have 5 in common?
rremember how esay it was to factor
ax^2+bx+c=0

now we have
5^(2x)-6(5^x)+5=0
remember that 5^(2x)=(5^2)^x or (5^x)^2
in other words, we can rewrite it as
1(5^x)^2-6(5^x)+5=0
if yo want, replace 5^x with a and factor
1a^2-6a+5=0
(a-1)(a-5)=0
a=5^x
(5^x-1)(5^x-5)=0
set each to zero

5^x-1=0
5^x=1
take the log₅ of both sides
x=log₅1


5^x-4=0
5^x=4
take the log₅ of both sides
x=log₅4

x=log₅1 and/or log₅4







second quesiton

same thing

1(2^x)-10(2^x)+16=0
factor
(2^x-8)(2^x-2)=0
set each to zero

2^x-8=9
2^x=8
x=3

2^x-2=0
2^x=2
x=1

x=3 or 1







first one
x=log₅1 and/or log₅4
second one
x=1 and/or 3


7 0
3 years ago
Find the value of “x”
zepelin [54]
Ur answer will be 55 because it’s a triangle and a triangle has 180 degrees
180-125=55:)
5 0
3 years ago
Sally's high school played eleven hockey games this year and four were at night.
statuscvo [17]
Answer: They won 9 games
5 0
3 years ago
Other questions:
  • A restaurant can seat 100 people. It has booths that seat 4 people and tables that seat 6 people. So far, 5 of the booths are fu
    14·1 answer
  • Solve for x please 10 points ​
    10·1 answer
  • Which is the solution to this system of equations? <br><br> 2x+y=8 <br> 2x+y=4
    10·1 answer
  • How many 0.2 liters glasses of water are contained in a 3.6 liter pitcher
    7·1 answer
  • Which formula can be used to describe the sequence? -3, 3/5,-3/25,3/125,-3/625​
    5·1 answer
  • Raj’s bathtub is clogged and is draining at a rate of 1.5 gallons of water per minute. The table shows that the amount of water
    12·2 answers
  • If triangle A B C is congruent to triangle D E F, the measure of angle A equals 55 degrees, and the measure of angle E equals 25
    13·1 answer
  • Find the missing side
    14·2 answers
  • Triangle ABC is isosceles with AB = AC.
    8·1 answer
  • Help pls Ill mark brainliest
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!