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yawa3891 [41]
3 years ago
13

Help please must show work 1, 2, 3, 4

Mathematics
2 answers:
My name is Ann [436]3 years ago
8 0
Those are the answers for 1-4. Tell me if I should do the others or not.

Levart [38]3 years ago
3 0
The answer to the question

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The mass of a sheet of metal varies jointly with its area and its thickness. A sheet of metal of area 250cm2 and thickness 1mm h
noname [10]

The Formula of the relation is M = 8AT.

The mass of the metal sheet is 960 g.

The expression below shows the variation between the mass of the sheet (M), Area of the Sheet(A), and thickness (T).

Proportionality:

  • M ∝ AT

Removing the proportionality sign,

  • M = KAT

Where:

  • K = constant of proportionality.

make K the subject of the equation:

  • K = M/KT.................... Equation 1

From the question,

Given:

  • M = 200 g
  • A = 250 cm²
  • T = 1 mm = 0.1 cm

Susbtitute into equation 1

  • K = 200/(250×0.1)
  • K = 8 g/cm³

Formula:

  • M = 8AT................. equation 2

Hence the formula of the relation is M = 8AT

If,

  • A = 400 cm²
  • T = 3 mm = 0.3

Substitute these values into equation 2

  • M = 8(400)(0.3)
  • M = 960 g

Hence,  the mass of the metal sheet is 960 g

Learn more about joint variation here: brainly.com/question/26047253

6 0
2 years ago
<img src="https://tex.z-dn.net/?f=%285%20-%20x%29%28x%20-%203%29" id="TexFormula1" title="(5 - x)(x - 3)" alt="(5 - x)(x - 3)" a
professor190 [17]

Answer:

15x

Step-by-step explanation:

because i multiply i side by side and copy the variable

3 0
3 years ago
Read 2 more answers
The tutor i had before explained it all but the answer wasn’t loading. that’s all!
VARVARA [1.3K]

Explanation:

The expression f(0) represents the value of the function at x=0 which means the y-intercept of the function.

the y-intercept of the graph is the point that crosses the y-axis.

From the given graph,

The y-intercept of the graph does not define.

Answer: f(0) = not defined

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1 year ago
Write your answer here (Keep it clear and simple to get the best answer)
daser333 [38]

Answer:

..what answer exactly? (im just gonna put my random answer here lol)

<em>The development of the calander shows they can divde the number of minutes hours days month etc in a year. Development of the pyramids shows geometry and engineering.</em>

7 0
3 years ago
HELP please need this now
noname [10]

Answer:

3000 square inches.

Step-by-step explanation:

First, scale this one up. Multiply each by 2. consider area of a trapezoid. A = 1/2 (b1 + b2) h. This will be 1/2 (20 + 30) * 20, so you'll get 500 square in. Then, multiply by 6 since Buffy is making 6 of them. 500 * 6 = 3000 square inches.

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2 years ago
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