Help me solve this <br> Step by step<br> 1/2(y+2)+2=1/4(8y-60)-3

I love you so you have to help me pleas plz

FrozenT [24]

6.25 per circle to balance the hanger

4 0

3 years ago

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What is the value of the expression

Stels [109]

$(-\dfrac{3^2}{3^3} )^2 = (-\dfrac{1}{3} )^2 = \dfrac{1}{9}$

OR (in more details):

$(-\dfrac{3^2}{3^3} )^2 = (-3^{2-3})^2 = (-3^{-1})^2 = (-\dfrac{1}{3} )^2 = \dfrac{1}{9}$

5 0

4 years ago

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Use differentials to estimate the amount of metal in a closed cylindrical can that is 26 cm high and 10 cm in diameter if the me

Afina-wow [57]

Answer:

The estimated amount of metal in the can is 87.96 cubic cm

Step-by-step explanation:

We can find the differential of volume from the volume of a cylinder equation given by

$V= \pi r^2 h$

Thus that way we will find the amount of metal that makes up the can.

Finding the differential.

A small change in volume is given by:

$dV =\cfrac{\partial V}{\partial h} dh + \cfrac{\partial V}{\partial r} dr$

So finding the partial derivatives we get

$dV =\pi r^2 dh + \pi 2r h dr$

$dV =\pi r^2 dh + 2\pi r h dr$

Evaluating the differential at the given information.

The height of the can is h = 26 cm, the diameter is 10 cm, which means the radius is half of it, that is r = 5 cm.

On the other hand the thickness of the side is 0.05 cm that represents dr = 0.05 cm, and the thickness on both top and bottom is 0.3 cm, thus dh = 0.3 cm +0.3 cm which give us 0.6 cm.

Replacing all those values on the differential we get

$dV =\pi 5^2 (0.6) + 2\pi (5) (26) (0.05)$

That give us

$V= 28 \pi \, cm^3$

Or in decimal value

$\boxed{dV= 87.96 \, cm^3}$

Thus the volume of metal in the can is 87.96 cubic cm.

6 0

4 years ago

Problem number eight

wariber [46]

Hello there! The answer is C. 7/9.

The question is asking you how to find the absolute value of -7/9. Absolute value is the value of the number, regardless if it is negative or positive. So, that makes C your answer.

I hope this was helpful in finding an answer to your question, have a great day! :)

7 0

3 years ago

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Given:

Westkost [7]

Answer: (A) If it is a bib, then it is a bab

<u>Step-by-step explanation:</u>

p: The bib is a bub.

Rewrite it as: If it is a bib, then it is a bub.

hypothesis: It is a bib
conclusion: It is a bub

q: The bub is a bab.

Rewrite it as: If it is a bub, then it is a bab

hypothesis: It is a bub
conclusion: It is a bab

The conclusion of p equals the hypothesis of q so the Law of Syllogism can be applied --> hypothesis of p → conclusion of q

8 0

3 years ago

Help me solve this Step by step 1/2(y+2)+2=1/4(8y-60)-3