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
Vanyuwa [196]
3 years ago
10

Solve the system of equations and choose the correct answer from the list of options d+e =12 -d+e=-8

Mathematics
1 answer:
Svetllana [295]3 years ago
7 0
D + e = 12
-d + e = -8
---------------
2e = 4
e = 2

d + e = 12
d + 2 = 12
d = 10

Answer: (10,2)
You might be interested in
What is X-y=-1 written in y=mx+b form?
exis [7]

Answer:

y = x + 1

Step-by-step explanation:

8 0
3 years ago
Find the value of c that makes x^2+20x+c a perfect square trinomial. And then write expression as the square of a binomial.
slava [35]
Here you go!!! Hope this helps

3 0
3 years ago
Your company is planning to air a number of television commercials during a television network's presentation of the an awards s
Sunny_sXe [5.5K]

This question is incomplete, the complete question is;

Your company is planning to air a number of television commercials during a television network's presentation of the an awards show. The network is charging your company $1.9 million per 30-second spot. Additional fixed costs (development and personnel costs) amount to $500,000, and the network has agreed to provide a discount of $160,000√x for x television spots.  

Required:

Write down the cost function C, marginal cost function C’, and average cost function

Answer:

- The  the cost function is 500,000 + 1,900,000x - 160,000√x

- the marginal cost function is 1,900,000 - (80000 /√x  )

- The  average cost function is 1,900,000 + [ 500,000 / x ] - [ 160,000 / √x ]

Step-by-step explanation:

Given the data in the question;

cost per spot = $1.9 million

Additional cost =  $500,000

discount = $160,000√x

 Let C(x) represent the cost ;

Cost x television spot = cost per spot × Number pf spots

Cost x television spot = $1.9 million × x

Cost x television spot = $1,900,000x

Now, the television set total cost will be;

C(x) = television cost + additional cost - discount  

C(x) = 500,000 + 1,900,000x - 160,000√x

Therefore, The  the cost function is 500,000 + 1,900,000x - 160,000√x

Marginal Cost Function;

Cost function C(x) = 500,000 + 1,900,000x - 160,000√x

we differentiate with respect to x

C'(x) = d/dx( 500,000 + 1,900,000x - 160,000√x )

= d/dx( 500000 ) + 1,900,000d/dx -160,000 d/d( √x )

= 0+ 1,900,000(1) -160,000( 1 / 2√x )

= 1,900,000 - (160,000 / 2√x  )

= 1,900,000 - (80000 /√x  )

Therefore, the marginal cost function is 1,900,000 - (80000 /√x  )

Average cost function;

Average cost function = C(x) / x

we substitute

Average cost function = [500,000 + 1,900,000x - 160,000√x] / x

=  [500,000 / x ] + [1,900,000x / x ]  - [ 160,000√x / x ]

=  [ 500,000 / x ] + 1,900,000 - [ 160,000√x / x ]

=  1,900,000 + [ 500,000 / x ] - [ 160,000 / √x ]

Therefore, The average cost function is 1,900,000 + [ 500,000 / x ] - [ 160,000 / √x ]

5 0
4 years ago
The sum of two numbers is 44.The larger number is 20 more than the smaller number. What are the numbers?
Lena [83]
The smaller number is 'x' .
The larger number is (x+ 20)

Their sum is [ x + (x + 20 ]

2x + 20 = 44

Subtract 20 from each side:

2x = 24

Divide each side by 2 :

x = <u>12</u>
and
x + 20 = <u>32</u>
7 0
3 years ago
Read 2 more answers
Mrs. Martin directs two courses one chorus has 28 students the other chorus has 36 students for rehearsals she wants to divide e
ludmilkaskok [199]

Answer:4 students will be in each group.

Step-by-step explanation:

28 and 36. The 2 numbers are divisible by 4 without remainder

7 0
3 years ago
Other questions:
  • 13r=3/7 what is r?
    13·2 answers
  • Enter the sum of numbers as a product of their GCF. 45 + 30
    6·1 answer
  • Write these expressions as simply as possible
    6·2 answers
  • You have 10 batteries sitting on your desk, three of which are dead. You choose 2 batteries are random for you calculator. What
    13·2 answers
  • Evaluate the given integral by changing to polar coordinates.∫∫ x2y dA, where D is the top half of the disk with center the orig
    9·1 answer
  • Factorsie x squared + 5x-14
    11·2 answers
  • what is the answer I need help
    13·1 answer
  • I need help on this!!/?
    5·2 answers
  • A man drove 60 km at 30 km/h, 60 km at 40 km/h and 60 km at 50 km/h. What was his average speed for the whole journey?​
    9·1 answer
  • Which side lengths could create a triangle? . A 10 cm, 10 cm, 20 cm oc 5 cm, 5 cm, 15 cm O B. 5 cm, 10 cm, 20 cm OD 10 cm, 10 cm
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!