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Lesechka [4]
1 year ago
12

I need help with question 18.This is a homework question!

Mathematics
1 answer:
EastWind [94]1 year ago
7 0

The expression is,

7y+11=-17

let us solve the expression.

\begin{gathered} 7y+11=-17 \\ 7y=-17-11 \\ 7y=-28 \\ y=-\frac{28}{7} \\ y=-4 \end{gathered}

the answer is

7y+11=-17,y=-4

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3 years ago
A top-loading washing machine has a cylindrical basket that rotates about a vertical axis. The basket of one such machine starts
damaskus [11]

Answer:

n_{tot}=44rev

Step-by-step explanation:

In order to solve this problem we can make use of the following formula:

\theta=(\frac{\omega_{f}+\omega_{0}}{2})t

where θ is the total angle the basket has turned, ω is the angular velocity and t is the time.

Generally theta is written in radians and omega is written in radians per second. Now, since the revolutions are directly related to the radians and they want us to write our answer in revolutions, we can directly use the provided speeds in the formula, so we can rewrite it as:

n=(\frac{f_{f}+f_{0}}{2})t

where n represents the number of revolutions and f is the frequency at which the basket is turning.

The movement of the cylindrial basket can be split in two stages, when it accelerates and when it decelerates. So let's analye the first stage:

n=(\frac{4rev/s+0}{2})(9s)=18rev

and now let's analyze the second stage, where it decelerates, so we get:

n=(\frac{0rev/s+4rev/s}{2})(13s)=26rev

So now that we know how many revolutions the cylindrical basket will take as it accelerates and as it decelerates we can add them to get:

n=18rev+26rev=44rev

So the basket will turn a total of 44 revolutions during this 22s interval.

3 0
3 years ago
What is the difference between exponent form and expanded form (repeated multiplication)?
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3 years ago
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Answer:

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First, converting R percent to r a decimal

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then, solving our equation

I = 3200 × 0.07 × 2 = 448

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USE THE EQUATION Interest= Principal x rate x time

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3 years ago
How do you convert 1/40 to a decimal form
dezoksy [38]
The answer will be 0.4 .
6 0
3 years ago
Read 2 more answers
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