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
12345 [234]
3 years ago
9

An open rectangular box having a volume of 4 in.3 is to be constructed from cardboard. find the dimensions of such a box if the

amount of cardboard used in its construction is to be minimized
Mathematics
1 answer:
Arada [10]3 years ago
4 0
8.1 Function of Two Variables Many functions have several variables. Ex. There are 3 types of football tickets. Type A costs $50, type B costs $30, and type C costs $20. If in a match, x tickets of type A, y tickets of type B, and z tickets of type C are sold, the total income of ticket sale is f(x, y, z) = 50x + 30y + 20z. Def. A real-valued function of two variables f consists of 1. A domain A consisting of ordered pairs of some real numbers (x, y). 2. A rule that associates with each ordered pair in A with one real number, denoted by z = f(x, y). Ex. (Ex 1, p.532) f(x, y) = x + xy + y w + 2. Compute f(0, 0), f(1, 2), and f(2, 1). Ex. Find the domain of a. f(x, y) = x 2+y 2 , b. g(x, y) = 2 x−y , c. h(x, y) = p 1 − x 2 − y 2. Ex. Find the domain of g(r, s) = √ rs. The graph of a function z = f(x, y) is the collection of all points {(x, y, f(x, y)) : x, y ∈ A} in R 3 (Fig 5, p.534; Fig 6, p.535). The graph of z = f(x, y) is 3 dimensional and it is difficult to draw. So we use level curves. A level curve is the graph of c = f(x, y) on xy-plane for a constant c. By drawing the level curves corresponding to several admissible values of c, we obtain a contour map. (Fig 7, p.535; Fig 8, p.536) Ex. Ex 5, p.536. HW. C8.1: SC1, 2, 3, Ex 31, 33

You might be interested in
Solve for x. <br><br> (X+16) (4x-5)<br><br> X = 4.3<br> X = -7<br> X = 3<br> X = 7
jeka94

Answer:

the answer is x = 7

Step-by-step explanation:

1) replace the x with 7

2) 7 + 16 = 23

3) 4(7) = 28

4) 28 - 5 = 23

they're both equal as perpendicular angles should be!

7 0
3 years ago
Could the following side lengths form a right triangle? Elplain 11,60,61
Bogdan [553]

Answer:

Yes

Step-by-step explanation:

A^2+B^2=C^2

11^2+60^2=61^2

121+3600=3721

3721=3721

:)

5 0
2 years ago
In a class of 23 students 9 are taking German and nine are taking Spanish. Of the student studying German or Spanish, 3 are taki
Colt1911 [192]
8 Students are not enrolled. Reason being 9 are taking German and 9 are taking Spanish so 9+9= 18 but because 3 are taking both you subtract 3 so that would give you 15 and 23-15=8

Answer: 8 Students 
4 0
2 years ago
On the way to school, a student rides his bike to the bus stop. He then waits a few minutes for the bus to come and rides the bu
andriy [413]

Answer:

No, the graph is only increasing while the student rides his bike, rides the bus, and walks. It is stays the same while he waits for the bus and when the bus stops to let him off.

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
A triangle has two sides of 7 and 12 what value could the length of the third side be
mezya [45]
It would be D:7
It needs to have one side bigger than
7 0
3 years ago
Other questions:
  • What is the area of the shaded region in the shape? PLEASE HELP!!
    9·1 answer
  • Two fair dice are tossed and the number on each die is recorded, e.g. (3,2) indicates the first die had 3 and the second die had
    15·1 answer
  • Which expression is equivalent to<br> 0 +<br> 2<br> 29<br> C+3<br> C+2<br> C+3<br> C+2
    11·1 answer
  • Expand this expression and combine like terms 1/3(x-9)
    11·2 answers
  • Simplify the expression -3(x+3)+4x
    15·2 answers
  • If the diameter of a circle has endpoints A (7,2) and B (-1,8), where is the center?
    8·2 answers
  • If a bag of flour weighs 25 pounds, how much will be gone after 4 weeks?<br> Need answer ASAP
    10·1 answer
  • Alice waters her plants every 2 days
    6·1 answer
  • Were there more people that were under 20 or 20 and over ?<br> A.under 20 <br> B.20 and over
    13·2 answers
  • Simplify (-8.5)X(-5)( -2).
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!