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
ad-work [718]
2 years ago
15

Suppose you wanted to make an open-topped box out of a flat piece of cardboard that is 25 inches long

Mathematics
2 answers:
grigory [225]2 years ago
7 0

i dont know man

Step-by-step explanation:

...

Artemon [7]2 years ago
6 0

Answer:

5 inches

Step-by-step explanation:

The side of the square you cut has length x.

The total length of the cardboard is 25". Once you cut the two corners, the length of the base of the box is 25 - 2x.

The total width of the cardboard is 20". Once you cut the two corners, the width of the base of the box is 20 - 2x.

The height of the box is x.

The volume of the box is

V = LWH

V = (25 - 2x)(20 - 2x)x

V = (2x - 25)(2x - 20)x

The volume is 750 cu in.

(2x - 25)(2x - 20)x = 750

Now try each value in the choices for x, and see which one works.

Try x = 3

(2(3) - 25)(2(3) - 20)(3) = (-19)(-14)(3) = 798

798 is not equal to 750, so x = 3 does not work.

Try x = 4

(2(4) - 25)(2(4) - 20)(4) = (-17)(-12)(4) = 816

816 is not equal to 750, so x = 4 does not work.

Try x = 5

(2(5) - 25)(2(5) - 20)(5) = (-15)(-10)(5) = 750

750 is equal to 750, so x = 5 does not work.

Answer: 5

You might be interested in
The table represents some points on the graph of an exponential function Which function represents the Same relationship? ​
Rama09 [41]

Answer:

the answer is a b and d

Step-by-step explanation:

I took the quiz

8 0
2 years ago
Would you rather use color tiles or your ruler to measure the length of an object
Step2247 [10]
A ruler to measure the length of an object.
4 0
3 years ago
Read 2 more answers
I cannot find the answer to my question
slamgirl [31]

Answer:

14M

Step-by-step explanation:

7*2*M

14*M

14M

HOPE I HELPED

PLS MARK BRAINLIEST

DESPERATELY TRYING TO LEVEL UP

        ✌ -ZYLYNN JADE ARDENNE

JUST A RANDOM GIRL WANTING TO HELP PEOPLE!

                                       PEACE!

4 0
3 years ago
Which equation represents the amount of money that Mr. Cooney earns in x hours? math
padilas [110]

Nobody can really answer this unless you can just give a random equation like 5*x=25 something like that

4 0
3 years ago
Read 2 more answers
Find the solution of the problem (1 3. (2 cos x - y sin x)dx + (cos x + sin y)dy=0.
lakkis [162]

Answer:

2*sin(x)+y*cos(x)-cos(y)=C_1

Step-by-step explanation:

Let:

P(x,y)=2*cos(x)-y*sin(x)

Q(x,y)=cos(x)+sin(y)

This is an exact differential equation because:

\frac{\partial P(x,y)}{\partial y} =-sin(x)

\frac{\partial Q(x,y)}{\partial x}=-sin(x)

With this in mind let's define f(x,y) such that:

\frac{\partial f(x,y)}{\partial x}=P(x,y)

and

\frac{\partial f(x,y)}{\partial y}=Q(x,y)

So, the solution will be given by f(x,y)=C1, C1=arbitrary constant

Now, integrate \frac{\partial f(x,y)}{\partial x} with respect to x in order to find f(x,y)

f(x,y)=\int\  2*cos(x)-y*sin(x)\, dx =2*sin(x)+y*cos(x)+g(y)

where g(y) is an arbitrary function of y

Let's differentiate f(x,y) with respect to y in order to find g(y):

\frac{\partial f(x,y)}{\partial y}=\frac{\partial }{\partial y} (2*sin(x)+y*cos(x)+g(y))=cos(x)+\frac{dg(y)}{dy}

Now, let's replace the previous result into \frac{\partial f(x,y)}{\partial y}=Q(x,y) :

cos(x)+\frac{dg(y)}{dy}=cos(x)+sin(y)

Solving for \frac{dg(y)}{dy}

\frac{dg(y)}{dy}=sin(y)

Integrating both sides with respect to y:

g(y)=\int\ sin(y)  \, dy =-cos(y)

Replacing this result into f(x,y)

f(x,y)=2*sin(x)+y*cos(x)-cos(y)

Finally the solution is f(x,y)=C1 :

2*sin(x)+y*cos(x)-cos(y)=C_1

7 0
3 years ago
Other questions:
  • Making Consumer Choices
    10·1 answer
  • Which of the following equations has infinitely many real solutions? A. 6x + 1 = 6x − 1 B. 6(x − 8) = 6x − 48 C. 6x + 1 = x − 1
    5·1 answer
  • I need assistance agane
    12·1 answer
  • What is the value of 4-2
    9·1 answer
  • The population of weights for men attending a local health club is normally distributed with a mean of 178-lbs and a standard de
    9·1 answer
  • How do i graph the quadratic function f (x)=-(x-3)(x+1)
    14·1 answer
  • What is the equation of a line perpendicular to y= 3x +6 that crosses the ordered pair (3,2).
    15·1 answer
  • Help, How do you graph this, and what's the solution. Brainliest promised if correct
    5·1 answer
  • Change each value of the quadratic equation. How does it change the graph?
    8·2 answers
  • Hannah bought some apples at the price of 3 apples for 95¢. She sold three fourths of them at 45¢ each, making a profit of 75¢.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!