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
Masja [62]
2 years ago
7

Z = -3x +5y Minimum value of z?

Mathematics
1 answer:
NeTakaya2 years ago
7 0

Answer:

minimum value of z is 0

Step-by-step explanation:

if x and y both equal zero, then the value of z is zero, which is your answer.

You might be interested in
2x + y = -4<br> 2x + 3y = 4
kirill115 [55]

Answer: x=4 ; y=<u> -4</u>

                            3

Step-by-step explanation:

2x + y = -4 .(-3)

2x + 3y = 4

-6x-3y=12

<u>2x + 3y = 4</u>

4x=16

x= <u>16</u>

    4

x=4

2x + 3y = 4

2.4+3y=4

8+3y=4

3y= -8+4

y=<u> -4</u>

   3

7 0
2 years ago
Adrian works in New York City and makes $40 per hour. She works in an office and must pay $20 a day for lunch. If she wants to m
andrew-mc [135]

Answer: She would have to work 7 hours to earn $260.

Step-by-step explanation: 40×7=280 280-20=260 Hope this helps.

6 0
2 years ago
I need help with these three problems (college algebra)
Paraphin [41]

5. After 6 hours, the concentration is halved. After 12 hours, it will be quartered. If the original concentration is 200 nmol, a quarter is 50 nmol.

14. The population doubles after 3 hours, and a day is 24 hours. That means that the original population should be multiplied by 2^{24/3}, or 2^8. 3 million times 2^8 is 3 * 256 million, or 768 million.

15. The concentration is halved every 8 hours and the original concentration is 100 nmol. So now, how many times do you halve 100 to get to 12.5?

100/2 = 50, 50/2 = 25, 25/2 = 12.5. That's three times. 3 * 8 is 24 hours, or 1 day.

8 0
3 years ago
Read 2 more answers
Simplify <br>it was x there so u not confused​
Mariulka [41]

Step-by-step explanation:

here's the solution: -

=》

\frac{x {}^{6} }{ {x}^{4} }  \times  {x}^{2}

=》

\frac{x \times x \times x \times x \times x \times x}{x  \times x \times x\times \: x }  \times x \times x

=》

x \times x \times x \times x

=》

{x}^{4}

5 0
2 years ago
If a polynomial function f(x)has root -2 + square root 8 and 9 what must be a factor of f(x)
Rasek [7]

Answer:

(x+2-\sqrt{9}) , (x-2+\sqrt{9}) ,(x-9)

Step-by-step explanation:

Given that f(x) is a polynomial function.

This implies that f(x) has x terms of positive integral degrees and also rational coefficients only.

Since an irrational root is given a root of f(x), we find that its conjugate also should be a root of f(x)

i.e. If -2+\sqrt{8} is a root, then -2-\sqrt{8} is also a root.

(Because this only when multiplied will make coefficients rational)

So the factors of f(x) should be atleast

(x+2-\sqrt{9}) , (x-2+\sqrt{9}) ,(x-9)

There can be other factors also but this is compulsory

7 0
2 years ago
Other questions:
  • Avery works on commission as a car saleswomen.she sold a car today that cost 8,000$ and received a 400$ commission.What percent
    6·1 answer
  • ? Question
    7·1 answer
  • Factor 15 + 50.<br> 5(10 + 3)<br> 5(3 + 10)<br> 3(5 + 25)<br> 10(5 + 5)
    13·1 answer
  • What is 5.72x10^3 in standard form
    13·1 answer
  • Solve this system of equations.<br> 3x + 4y = 36<br> y = 1/2x+8
    11·1 answer
  • The graph shows y as a function of x. Suppose a point is added to this graph. Which choice gives a point that preserves the func
    10·2 answers
  • 1.Write an equation in slope- intercept form of the line that passes through the given point and is parallel to the graph of the
    9·2 answers
  • Does this picture represent a physical or chemical change <br> Plz help
    14·2 answers
  • Which of the following statements correctly compares the rate of change for the money payed, measured as
    15·2 answers
  • Help find the area of the figure, please and thank you! ​
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!