3 years ago

A bar of copper has a mass of 216 g and a volume of 24 cm. what is the density of copper

Mathematics

1 answer:

Karo-lina-s [1.5K]3 years ago

3 0

This is how I found the answer

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Use the graphing calculator to locate the solutions of this system of equations:

Luda [366]

Answer: (–3, 4) and (1,0)

Step-by-step explanation:

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3 years ago

Describe the error in the work shown.

gladu [14]

Your answer is option c. The final simplified form should have y to the 4th power instead of y cubed. I think so..

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3 years ago

A square is divided into three congruent rectangles as shown at the right. Each of the three rectangles has a perimeter of 16 me

nadezda [96]

Answer:

Perimeter of square = 24 meter

Step-by-step explanation:

Given:

Square divided into three equal rectangle

Perimeter of rectangle = 16 meter

Find:

Perimeter of square

Computation:

We know that rectangle are equal

So,

3b = l

Perimeter of rectangle = 2 (l + b)

16 = 2 (l + b)

16 = 2 (3b + b)

b = 2 meter

l = 3 (2) = 6 meter

Side of square = 6 meter

Perimeter of square = 4(side)

Perimeter of square = 4(6)

Perimeter of square = 24 meter

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3 years ago

HELP! Simon invests in a medical company. He buys the stock at $189.35 and sells it for $167.78. What is the percent of decrease

myrzilka [38]

167.78 / 189.35 = .88608 * 100 = 88.6083971481 round it you get 89

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4 years ago

The potential energy, P, in a spring is represented using the formula P = P equals StartFraction one-half EndFraction k x square

Anastaziya [24]

Answer:

$k=\frac{2P}{x^{2}}$

Step-by-step explanation:

<u><em>The question is</em></u>

Which equation should she use?

we have the formula

$P=\frac{1}{2}kx^{2}$

Solve for k

That means ----> isolate the variable k

Multiply by 2 both sides

$2P=kx^{2}$

Divide by x^2 both sides

$\frac{2P}{x^{2}}=k$

Rewrite

$k=\frac{2P}{x^{2}}$

6 0

3 years ago