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
Annette [7]
2 years ago
15

Ok. Last one please help me. I will give you 5 stars, and a like

Mathematics
2 answers:
____ [38]2 years ago
8 0

Answer:

3.14

Step-by-step explanation:

The five dollars subtracting what he had left. so that gives you 3.14

☭

tigry1 [53]2 years ago
7 0
Subtract $1.86 ( what he was given back)
From the $5.00 ( he gave)
Answer will be 3.14
You might be interested in
An open box with a square base is to have a volume of 18 ft^3.
kotegsom [21]

Answer:

2.29 ft of side length and 1.14 height

Step-by-step explanation:

a) Volume V = x2h, where x is side of square base and h is hite.

Then surface area S = x2 + 4xh because box is open.

b) From V = x2h = 6 we have h = 6/x2.

Substitude in formula for surface area: S = x2 + 4x·6/x2, S = x2 + 24/x.

We get S as function of one variable x. To get minimum we have to find derivative S' = 2x - 24/x2 = 0, from here 2x3 - 24 = 0, x3 = 12, x = (12)1/3 ≅ 2.29 ft.

Then h = 6/(12)2/3 = (12)1/3/2 ≅ 1.14 ft.

To prove that we have minimum let get second derivative: S'' = 2 + 48/x3, S''(121/3) = 2 + 48/12 = 6 > 0.

And because by second derivative test we have minimum: Smin = (12)2/3 + 4(12)1/3(12)1/3/2 = 3(12)2/3 ≅ 15.72 ft2

5 0
2 years ago
How do you factor 50x - 32x^3
adoni [48]
<span>50x - 32x^3
= 2x (25 - 16x^2)

hope that helps</span>
8 0
3 years ago
If ON= 5x - 7, LM = 4x+ 4, NM = x -7, and OL =3y-4, find the values of c and y for which LMNO MUST BE a parallelogram.
Sholpan [36]

Answer:

x=11, y=8/3

Step-by-step explanation:

Consider quadrilateral LMNO. If this quadrilateral MUST BE a parallelogram, then

LM=NO

and

LO=MN

Thus,

\left\{\begin{array}{l}4x+4=5x-7\\ \\x-7=3y-4\end{array}\right.

Solve this system of two equations. From the first equation:

4x-5x=-7-4\\ \\-x=-11\\ \\x=11

Substitute it into the second equation:

11-7=3y-4\\ \\3y-4=4\\ \\3y=4+4\\ \\3y=8\\ \\y=\dfrac{8}{3}

4 0
3 years ago
3(x + 5) = 39 I dont understand this problem
Dvinal [7]
3(x+5)=39
3x+15=39
3x=24
x=8
5 0
3 years ago
Read 2 more answers
How do I take picture on this app
NemiM [27]
When you r typing ur question, there is an Ask Question button, click that then click on the camera icon to take pic or gallery icon to pick pic from gallery
3 0
3 years ago
Read 2 more answers
Other questions:
  • A point is dilated with respect to the origin. Determine the value of K and state whether the dilation is an expansion or contra
    7·1 answer
  • For the polynomial below,what is the power of the term with the coefficient of 1? X^3+1/3x^4+6x+5
    6·2 answers
  • How do i simplify this?
    8·1 answer
  • What is the width (NO LINKS)
    5·2 answers
  • $3000 are invested in a bank account at an interest rate of 7 percent per year. Find the amount in the bank after 15 years of in
    9·1 answer
  • A triangle has an read of 230.86 square inches the height of the triangle is 23,8 inches what is the length of the base of the t
    10·1 answer
  • What is the measure of x to the nearest degree?<br> 8
    13·1 answer
  • How wide and how long is the actual swimming pool
    11·1 answer
  • What are some decimals for - 9/4 other than -2.25
    14·2 answers
  • Pls help! Answer the question in the pic. I will mark brainliest and I will give 5 stars and a thanks.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!