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____ [38]
3 years ago
11

Paint is sold in a cylindrical container with a radius of 4 inches and a height of 10 inches. If the paint costs $0.05 per cubic

inch, how much would a full bucket of paint cost?
A. $5.50
B. $25.13
C. $8.38
D. $30.10
Mathematics
2 answers:
galina1969 [7]3 years ago
3 0

Answer:

A

Step-by-step explanation:

A

s344n2d4d5 [400]3 years ago
3 0

Answer:

Step-by-step explanation: A cylinder has a volume of 10,800 cm3 and a height of 12 cm. What is the diameter of the cylinder?

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A block of ice has a square top and bottom and rectangular sides. At a certain point in
Lilit [14]

Answer:

\frac{dV}{dt} = 360 \ cm^3/h

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

Equality Properties

<u>Geometry</u>

  • Volume of a Rectangular Prism: V = lwh

<u>Calculus</u>

Derivatives

Derivative Notation

Differentiating with respect to time

Basic Power Rule:

  • f(x) = cxⁿ
  • f’(x) = c·nxⁿ⁻¹

Step-by-step explanation:

<u>Step 1: Define</u>

<u />l = 30 \ cm\\w = l\\\frac{dl}{dt} = 2 \ cm/h\\h = 20 \ cm\\\frac{dh}{dt} = 3 \ cm/h<u />

<u />

<u>Step 2: Differentiate</u>

  1. Rewrite [VRP]:                                                                                                 V = l^2h
  2. Differentiate [Basic Power Rule]:                                                                         \frac{dV}{dt} = 2l\frac{dl}{dt} \frac{dh}{dt}

<u>Step 3: Solve for Rate</u>

  1. Substitute:                                                                                                           \frac{dV}{dt} = 2(30 \ cm)(2 \ cm/h)(3 \ cm/h)
  2. Multiply:                                                                                                               \frac{dV}{dt} = 360 \ cm^3/h

Here this tells us that our volume is decreasing (ice melting) at a rate of 360 cm³ per hour.

3 0
3 years ago
A farmer has a feed trough in the shape of rectangular prism with a height of 40 cm and a base that is 30 cm wide by 200 cm long
inysia [295]

Answer:

Step-by-step explanation:

You're welcome :)

5 0
3 years ago
Greg has a container of building blocks that has 4 blocks in each row and 8 blocks in each column. How many
Katena32 [7]

Answer:

32 blocks are in the container

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
You get paid $7.25 per hour for doing yard work. You earned $79.75 last week. Which equation shows how to calculate the numbers
svlad2 [7]
79.75/7.25
Or 7.25x = 79.75.
3 0
4 years ago
Read 2 more answers
Find dy/dx<br><br> y = 5/8x^3/7 + 8x^4 + 6x - 9
aleksandrvk [35]

Answer:

15/56x^(-4/7) + 32x^3 + 6.

Step-by-step explanation:

Using  the rule for algebraic differentiation:

If  y = ax^n, dy/dx = anx^(n-1).

So :

If  y = 5/8x^3/7 + 8x^4 + 6x - 9

dy/dx = 5/8* 3/7 x^(3/7-1) + 8*4 x^(4-1) + 6x(1-1)

=  15/56x^(-4/7) + 32x^3 + 6.

5 0
4 years ago
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